Active field distributors AFD4, AFD4. (FM), AFD8 and AFS SIMATIC. Bus links Active field distributors AFD4, AFD4 (FM), AFD8 and AFS.

Active field distributors AFD4, AFD4 (FM), AFD8 and AFS SIMATIC Introduction 1 Installing and connecting 2 Technical specifications 3 Bus links Active field distributors AFD4, AFD4 (FM), AFD8 and AFS Product Information 02/2015 A5E03775304-AC

Legal information Warning notice system This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger. DANGER indicates that death or severe personal injury will result if proper precautions are not taken. WARNING indicates that death or severe personal injury may result if proper precautions are not taken. CAUTION indicates that minor personal injury can result if proper precautions are not taken. NOTICE indicates that property damage can result if proper precautions are not taken. If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage. Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems. Proper use of Siemens products Note the following: Trademarks WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed. All names identified by are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner. Disclaimer of Liability We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions. Siemens AG Division Process Industries and Drives Postfach 48 48 90026 NÜRNBERG GERMANY A5E03775304-AC P 02/2015 Subject to change Copyright Siemens AG 2012-2015. All rights reserved

Table of contents 1 Introduction... 5 1.1 Security information... 5 1.2 Active field distributor AFD4, AFD4 (FM) and AFD8... 6 1.3 Active field splitter (AFS)... 7 1.4 Configuration with active field distributors... 8 2 Installing and connecting... 11 2.1 Screwing AFD4 / AFD4 (FM) / AFD8 and AFS to the substrate... 11 2.2 Grounding AFD4 / AFD4 (FM) / AFD8 and AFS... 12 2.3 Safety instructions for connection... 14 2.4 Connecting the field bus to the active field distributors AFD4 / AFD4 (FM) / AFD8... 19 2.5 Connecting the field bus to the active field distributor AFS... 23 2.6 Maintaining and cleaning AFD4 / AFD4 (FM) / AFD8 and AFS... 26 2.7 Replacing AFD4 / AFD4 (FM) / AFD8 and AFS... 27 2.8 LED displays of the active field distributor AFD4 / AFD4 (FM) / AFD8... 29 2.9 LED displays of the active field splitter (AFS)... 30 3 Technical specifications... 31 3.1 Standards and approvals for active field distributors AFD4 / AFD8 and AFS... 31 3.2 Standards and approval of active field distributor AFD4 (FM)... 33 3.3 Technical specifications of active field distributors AFD4 (6ES7157-0AG81-0XA0)... 33 3.4 Technical specifications for active field distributor AFD4 (FM) (6ES7655-5DX40-1AA1)... 36 3.5 Technical specifications of active field distributors AFD8 (6ES7157-0AG82-0XA0)... 38 3.6 Technical specification of active field distributors AFS (6ES7157-0AG80-0XA0)... 40 3.7 Abbreviations... 42 Index... 43 Tables Table 2-1 Terminal assignment on the active field distributor AFD4 / AFD4 (FM) / AFD8... 2020 Table 2-2 Terminal assignment on the active field distributor AFS... 2424 Table 2-3 Permitted activities in hazardous areas... 2626 Table 2-4 Status and error messages... 2929 Table 2-5 Status and error messages... 3030 Product Information, 02/2015, A5E03775304-AC 3

Table of contents Table 3-1 Industrial use... 3232 Figures Figure 1-1 Example: Configuration with ring redundancy with AFD4 field distributors... 88 Figure 2-1 Example: Direct grounding of AFD4 / AFD4 (FM)... 1313 Figure 2-2 Schematic representation of the interior (AFD4)... 1414 Figure 2-3 Schematic representation of the interior (AFD4 (FM))... 1515 Figure 2-4 Rules for connecting the main lines... 1717 Figure 2-5 Connections of AFD4... 1919 Figure 2-6 Connections of AFD4 (FM)... 1919 Figure 2-7 Connections of AFD8... 1919 Figure 2-8 Terminal block AFD4 / AFD4 (FM) / AFD8... 2020 Figure 2-9 Preparing the bus cable... 2222 Figure 2-10 AFS connections... 2323 Figure 2-11 AFS terminal block... 2323 Figure 2-12 Preparing the bus cable... 2525 Figure 2-13 LED display AFD4 / AFD4 (FM) / AFD8... 2929 Figure 2-14 LED display AFS... 3030 4 Product Information, 02/2015, A5E03775304-AC

Introduction 1 This product information contains important information on the active field distributors AFD4, AFD4 (FM), AFD8 and AFS. It should take priority over information provided in manuals and catalogs if conflicts occur. In addition to this product information, you need the associated manual "Bus links. DP/PA coupler, active field distributors, DP/PA Link and Y Link". It is available for download from the Internet (http://support.automation.siemens.com/ww/view/en/1142696). Scope In this product information, we describe the specifics of the active field distributors, which can can be operated on the PA and FF field buses: AFD4, order number 6ES7157-0AG81-0XA0 AFD4 (FM), order number 6ES7655-5DX40-1AA1 AFD8, order number 6ES7157-0AG82-0XA0 AFS, order number 6ES7157-0AG80-0XA0 Note The devices listed above are functionally compatible with the previous models AFD with order number 6ES7157-0AF81-0XA0 or AFS with order number 6ES7157-0AF82-0XA0. Keep in mind the larger dimensions when replacing the devices. Setting the dimensions of plants When setting the dimensions of plants with active field distributors, use the "SIMATIC Fieldbus Calculator". It is available for download from the Internet (http://support.automation.siemens.com/ww/view/en/53842953). 1.1 Security information Siemens provides products and solutions with industrial security functions that support the secure operation of plants, solutions, machines, equipment and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens products and solutions undergo continuous development. Siemens recommends strongly that you regularly check for product updates. For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action (e.g. cell protection concept) and integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should Product Information, 02/2015, A5E03775304-AC 5

Introduction 1.2 Active field distributor AFD4, AFD4 (FM) and AFD8 also be considered. You can find more information about industrial security on the Internet (http://www.siemens.com/industrialsecurity). To stay informed about product updates as they occur, sign up for a product-specific newsletter. You can find more information on the Internet (http://support.automation.siemens.com). 1.2 Active field distributor AFD4, AFD4 (FM) and AFD8 Active field distributor AFD4 / AFD4 (FM) / AFD8 Field devices such as measuring instruments, sensors and actuators can be connected to the active field distributors AFD4 / AFD4 (FM) / AFD8. In conjunction with 2 FDC 157 couplers, the field distributors AFD4 / AFD4 (FM) / AFD8 enable operation of a ring redundancy. You can use the following field distributors in a segment: Up to 8 field distributors when using AFD4 / AFD4 (FM) / AFD8 only Up to 5 field distributors with mixed use of at least one AFDiS and other AFD4 / AFD4 (FM) / AFD8 field distributors The total number of field devices in a segment is 31 devices and it is limited by a maximum of 60 ma per spur line. Functions Connection of field devices for a field bus in line or ring topology Automatic bus termination Automatic isolation of faulty segments Automatic connection of isolated segments after fault rectification Extending a segment during operation Short-circuit-proof spur lines Properties AFD4: 2 M16 cable glands for the main line AFD8: 2 M16 cable glands for the main line AFD4 (FM): 2 M20 blanking caps for the main line AFD4: 4 M16 cable glands for up to 4 field devices AFD8: 8 M16 cable glands for up to 8 field devices AFD4 (FM): 4 M16 blanking caps for up to 4 field devices Connection using screw-type terminals Reverse polarity protection connections 6 Product Information, 02/2015, A5E03775304-AC

Introduction 1.3 Active field splitter (AFS) Debounce logic reduces interference when connecting and disconnecting the spur lines IP30 covers for connections of the main lines Diagnostics using LED displays Power supply by means of the field bus Screw gland on substrate Grounding terminal outside Degree of protection IP66 Protective coating of printed circuit board 1.3 Active field splitter (AFS) Active field splitter (AFS) The AFS field distributor connects 2 FDC 157 couplers to a field bus segment. It enables operation of coupler redundancy on the line this way. The total number of field devices on the line is 31 devices limited by a maximum current of 1 A. Functions If a fault occurs, the main line automatically switches to the redundant FDC 157 coupler. Properties 2 M16 cable glands for the main line 4 M16 cable glands for the segment Connection using screw-type terminals Reverse polarity protection connections IP30 covers for connections of the main lines Diagnostics using LED displays Power supply by means of the field bus Power failure backup in case of failure of a main line Screw gland on substrate Grounding terminal outside Degree of protection IP66 Protective coating of printed circuit board Product Information, 02/2015, A5E03775304-AC 7

Introduction 1.4 Configuration with active field distributors Note Despite the IP30 covers, the requirements for Zone 2 are not met because the AFS is always connected directly to the FDC 157 coupler. See also Safety instructions for connection (Page 14) 1.4 Configuration with active field distributors Installation with ring redundancy The graphic below provides an example of the configuration with ring redundancy. The symbols for AFD4 field distributors are shown without cable glands for the main lines to maintain clarity. Figure 1-1 Example: Configuration with ring redundancy with AFD4 field distributors 8 Product Information, 02/2015, A5E03775304-AC

Introduction 1.4 Configuration with active field distributors Reference You can find additional configuration variants in the application planning section of the "Bus Couplings" manual. DP/PA Coupler, Active Field Distributors, DP/PA Link and Y Link" manual on the Internet (http://support.automation.siemens.com/ww/view/en/1142696). Product Information, 02/2015, A5E03775304-AC 9

Introduction 1.4 Configuration with active field distributors 10 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2 2.1 Screwing AFD4 / AFD4 (FM) / AFD8 and AFS to the substrate Mounting position The active field distributors AFD4 / AFD4 (FM) / AFD8 and AFS are preferably screwed in place on a flat surface with the connections at the bottom. Requirement The substrate must be level, with load-bearing capacity, and it must be vibration free. Select appropriate fixing accessories for the substrate. There should be a clearance of at least 60 mm below the modules for the connection of main lines and spur lines. You can find the drill hole spacing on the back of the enclosure base (see Technical specifications). Tools required Phillips screwdriver size 4 4 M6 fixing screws; dowels depending on the substrate Screwdriver suitable for the fixing screws used Procedure WARNING Risk of injury! There is risk of injury due to heavy weight of the field distributor. Hold the device firmly in your hand during installation. 1. Remove the 4 screws of the enclosure cover with a Phillips screwdriver. 2. Screw the lower part of the enclosure tightly to the substrate with 4 fixing screws. The torque depends on the fixing screws used. 3. Screw the enclosure cover onto the upper part of the enclosure with the 4 Phillips-recess screws. Torque 2.4 Nm. Product Information, 02/2015, A5E03775304-AC 11

Installing and connecting 2.2 Grounding AFD4 / AFD4 (FM) / AFD8 and AFS 2.2 Grounding AFD4 / AFD4 (FM) / AFD8 and AFS Requirement Active field distributor is mounted. Required accessories Grounding cable, at least 4.0 mm 2 Grounding the active field distributors AFD4 / AFD4 (FM) / AFD8 and AFS 1. Strip the insulation of the grounding cable to 8 mm. 2. Attach the grounding cable to the grounding terminal of the field distributor. Torque 2.0 Nm. 3. Connect the grounding cable to the equipotential bonding PA in accordance with EN 60079-14. DANGER Explosion hazard Sparks may occur when connecting in some circumstances. Never perform the work under explosive conditions! Note Read the safety instructions in the section Safety instructions for connection (Page 14). Equipotential bonding PA In hazardous areas, you need to implement equipotential bonding PA according to IEC 60079-14. Connect the equipotential bonding PA to the shielding of the bus lines. The best EMC protection is achieved with direct grounding for active field distributors. 12 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.2 Grounding AFD4 / AFD4 (FM) / AFD8 and AFS Direct grounding The shielding of the bus lines is grounded directly in the hazardous area and in the safe area. This is possible if the equipotential bonding PA runs from the FDC 157 couplers (in the safe area) to the field devices (in hazardous areas), which means if a corresponding equipotential bonding conductor is installed. Note Direct grounding The braided shielding of the connection cables must be guided under the shielding clamps of the active field distributors. Example: Direct grounding of AFD4 / AFD4 (FM) Figure 2-1 Example: Direct grounding of AFD4 / AFD4 (FM) Product Information, 02/2015, A5E03775304-AC 13

Installing and connecting 2.3 Safety instructions for connection 2.3 Safety instructions for connection Safety information Note When laying cables and wiring, make sure that you adhere to the installation regulations in accordance with EN 60079-14 and any regulations specific to your country. DANGER Explosion hazard Sparks may occur when connecting in some circumstances. Therefore, use a non-magnetic screwdriver when connecting the cables. DANGER Explosion hazard A tensile load on the screws of the AFD4, AFD4 (FM), AFD8 and AFS can impair the degree of protection and is not permitted. Implement a fixed Installation for inlet of the cable! Schematic representation of the interior Figure 2-2 Schematic representation of the interior (AFD4) 14 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.3 Safety instructions for connection Figure 2-3 Schematic representation of the interior (AFD4 (FM)) IP30 cover for AFD4 / AFD4 (FM) / AFD8 The connections of the main cables inside the enclosure of the AFD4 / AFD4 (FM) / AFD8 are sealed with an IP30 cover. Opening the IP30 cover switches off the voltage supply to the terminals and the feed lines. In the hazardous area Zone 2, you are permitted to open the IP30 cover during operation for visual inspection. NOTICE IP30-Cover with AFS Despite the IP30 cover, the requirements for Zone 2 are not met because the AFS is always connected directly to the FDC 157 coupler. Zone 2: Disconnecting the main line / connecting the main line to AFD4 / AFD4 (FM) / AFD8 DANGER Explosion hazard In hazardous area Zone 2, you are not permitted to disconnect the main line from an AFD4 / AFD4 (FM) / AFD8 during operation if it is connected directly to an FDC 157 coupler or an AFS. Before you start the work, disconnect the voltage supply to the FDC 157 coupler(s). In hazardous area Zone 2, you are permitted to disconnect a main line from an AFD4 / AFD4 (FM) / AFD8 during operation if it connects two AFD4 / AFD4 (FM) / AFD8. Product Information, 02/2015, A5E03775304-AC 15

Installing and connecting 2.3 Safety instructions for connection Zone 2: Disconnecting the main line / connecting the main line to AFS DANGER Explosion hazard In hazardous area Zone 2, you are not permitted to disconnect lines from an AFS during operation. Before you start the work, disconnect the FDC 157 coupler(s) from the voltage. 16 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.3 Safety instructions for connection Rules for connecting the main lines The following examples illustrate the rules that you must observe when connecting main lines. Figure 2-4 Rules for connecting the main lines Product Information, 02/2015, A5E03775304-AC 17

Installing and connecting 2.3 Safety instructions for connection Rules Observe the following rules when connecting the main lines in hazardous area Zone 2: No. 1 Rule Disconnect FDC from the voltage when disconnecting the line (1) on AFD4 / AFD4 (FM) / AFD8 / AFDiS 2 Disconnect FDC 1 from the voltage when disconnecting the line (1) on AFD4 / AFD4 (FM) / AFD8 / AFDiS 3 Disconnect FDC 2 from the voltage when disconnecting the line (2) on AFD4 / AFD4 (FM) / AFD8 / AFDiS Disconnect FDC 1 and FDC 2 from the voltage when disconnecting the line (1) on AFS and AFD4 / AFD4 (FM) / AFD8 / AFDiS The following applies to all configurations: The lines (3) can be connected during operation (each highlighted in green in the figure) The spur lines S1 to S8 can always be connected during operation. Marking the main lines Note Mark the main lines on the field distributors which you are not permitted to disconnect during operation. Mark in your plant: The main lines on AFD4 / AFD4 (FM) / AFD8 that come directly from the FDC coupler The main lines on AFD4 / AFD4 (FM) / AFD8 that come directly from the AFS The main lines on AFS that come directly from the AFD4 / AFD4 (FM) / AFD8 (each highlighted in red in the figure) 18 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.4 Connecting the field bus to the active field distributors AFD4 / AFD4 (FM) / AFD8 2.4 Connecting the field bus to the active field distributors AFD4 / AFD4 (FM) / AFD8 Introduction The bus cables of the AFD4 / AFD4 (FM) / AFD8 field distributors are fed into the enclosure via cable glands: The main line using T1 and T2 The spur lines to the field devices using S1 to S4 / S8 Figure 2-5 Connections of AFD4 Figure 2-6 Connections of AFD4 (FM) Figure 2-7 Connections of AFD8 Product Information, 02/2015, A5E03775304-AC 19

Installing and connecting 2.4 Connecting the field bus to the active field distributors AFD4 / AFD4 (FM) / AFD8 Terminal assignment Connect the wires of the bus cables using the screw-type terminals on the terminal block. Figure 2-8 Terminal block AFD4 / AFD4 (FM) / AFD8 Table 2-1 Terminal assignment on the active field distributor AFD4 / AFD4 (FM) / AFD8 Connection Terminal Assignment T1, T2 Main line + Data line - Data line S1 to S4 / S8 Spur line to the field devices + Data line - Data line Basic procedure 1. Prepare the bus cable. 2. Connect the bus cable: Open the field distributor. Connect the wires to the terminal block. Close the field distributor. Preparation of the AFD4 (FM) Note Replace blanking caps with UL- or CSA-approved lead-throughs for connection of additional field devices. The customer must use a screwed gland and a cable as specified for the application according to NEC and CEC. The installation must conform to the relevant requirements of the National Electrical Code (ANSI/NFPA-70 (NEC ). Requirement Active field distributor is mounted and grounded. 20 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.4 Connecting the field bus to the active field distributors AFD4 / AFD4 (FM) / AFD8 Tools required Cross-tip screwdriver size 4 Open ring wrench 20 mm Screwdriver with 3 mm blade Small knife, diagonal cutter or FC stripping tool Required accessories Bus cable (cable type A) Sealing plugs for unused connections (10), 6ES7157-0AG80-1XA1 Stripping dimensions bus cable For secure connection of the wires in the screw-type terminals, observe the following stripping dimensions of the bus cables for the main lines and spur lines. Stripping dimensions Length of stripping Main line T1, T2 Spur lines S1-S8 Direct grounding a 90 mm 70 mm Commissioning plants with active field distributors AFD4 / AFD4 (FM) / AFD8 NOTICE Bus system failure If the event of a fault, the bus system may fail completely or partially. Before you commission a plant with ring redundancy, check the redundancy function by means of a line interruption/short circuit or by opening the IP30 covers on each AFD4 / AFD4 (FM) / AFD8 (opening the IP30 covers is also interpreted as a fault). Extending plants with active field distributors AFD4 / AFD4 (FM) / AFD8 NOTICE Fault on the main line due to connection of spur lines If a plant is already in operation, first connect the spur lines to the field devices followed by the main lines. This sequence reduces interference on the main line. Product Information, 02/2015, A5E03775304-AC 21

Installing and connecting 2.4 Connecting the field bus to the active field distributors AFD4 / AFD4 (FM) / AFD8 Preparing the bus cable 1. Remove the cable gland from the field distributor with the ring wrench. 2. Slide the clamping screw and the inside part of the gland with the sealing ring onto the unprepared cable. 3. Strip the cable as shown in the figure. Figure 2-9 Preparing the bus cable Connecting the bus cable 1. Open the field distributor: Remove the 4 screws of the enclosure cover with a Phillips screwdriver. 2. Guide the bus cables of the pin assignment through the cable glands. 3. For direct grounding, run the braided shielding of the bus cable under the shielding clamps. 4. Connect the wires to the terminal block. Ensure that the wires have the correct polarity. Torque 0.35 Nm. 5. Tighten the screw caps of the cable glands with a torque of 1.3 Nm. NOTICE Impairment of the degree of protection The degree of protection may be impaired if you tighten the screw caps too tight or not enough. 6. Close the field distributor: Place the enclosure cover on the enclosure base and tighten the four screws on the enclosure cover. Torque 2.4 Nm. Sealing unused cable glands NOTICE Impairment of the degree of protection Close unused cable glands with sealing plugs, order number 6ES7157-0AG80-1XA1. This is the only way to ensure degree of protection IP66. 22 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.5 Connecting the field bus to the active field distributor AFS 2.5 Connecting the field bus to the active field distributor AFS Introduction NOTICE Failure of field devices due to voltage dip To prevent the failure of the field devices due to a voltage dip in the event of a fault, a maximum voltage drop of 5 V between T1/T2 and Y must be assumed when using the AFS without a downstream AFD. The bus cables are guided into the enclosure by means of cable glands: The main line to the couplers using T1 and T2 The spur cables to the line using Y (all Y terminal connections are equivalent) Figure 2-10 AFS connections Center feed: Loop-through of the line If you loop-through the line on the AFS active field distributor using the cable gland Y, set the bus termination switch to OFF on both FDC 157 couplers. Terminal assignment You connect the wires of the bus cable in the active field distributor on the terminal block using screw-type terminals. Figure 2-11 AFS terminal block Product Information, 02/2015, A5E03775304-AC 23

Installing and connecting 2.5 Connecting the field bus to the active field distributor AFS Table 2-2 Terminal assignment on the active field distributor AFS Connection Terminal Assignment T1, T2 Main line to the FDC 157 couplers + Data line Y Line to the field devices (supply); the Y connectors are provided for max. 2 bus lines, each with a terminating resistor at the end of the line - Data line + Data line - Data line Basic procedure 1. Prepare the bus cable. 2. Connect the bus cable: Open the field distributor. Connect the wires to the terminal block. Close the field distributor. Requirement Active field distributor is mounted and grounded. Tools required Cross-tip screwdriver size 4 Open ring wrench 20 mm Screwdriver with 3 mm blade Small knife, diagonal cutter or FC stripping tool Required accessories Bus cable (cable type A) Sealing plugs for unused connections (10), 6ES7157-0AG80-1XA1 24 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.5 Connecting the field bus to the active field distributor AFS Preparing the bus cable 1. Remove the cable glands from the field distributor with the ring wrench. 2. Slide the clamping screw and the inside part of the gland with the sealing ring onto the unprepared cable. 3. Strip the cable as shown in the figure. Figure 2-12 Preparing the bus cable Connecting the bus cable 1. Open the field distributor: Remove the 4 screws of the enclosure cover with a Phillips screwdriver. 2. Guide the cables of the terminal assignment through the cable glands. 3. For direct grounding, run the braided shielding of the bus cable under the shielding clamps. 4. Connect the wires to the terminal block. Ensure that the wires have the correct polarity. Torque 0.35 Nm. 5. Tighten the screw caps of the cable glands with a torque of 1.3 Nm. NOTICE Impairment of the degree of protection The degree of protection may be impaired if you tighten the screw caps too tight or not enough. 6. Close the field distributor: Place the enclosure cover on the enclosure base and tighten the four screws on the enclosure cover. Torque 2.4 Nm. Sealing unused cable glands NOTICE Impairment of the degree of protection Close unused cable glands with sealing plugs, order number 6ES7157-0AG80-1XA1. This is the only way to ensure degree of protection IP66. Product Information, 02/2015, A5E03775304-AC 25

Installing and connecting 2.6 Maintaining and cleaning AFD4 / AFD4 (FM) / AFD8 and AFS 2.6 Maintaining and cleaning AFD4 / AFD4 (FM) / AFD8 and AFS Permitted activities in hazardous areas The table below describes which maintenance activities are permitted on AFD4 / AFD4 (FM) / AFD8 / AFS during operation. DANGER Explosion hazard Zone 2: You may open the enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS briefly for the permitted maintenance work. Zone 22: You must not open the enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS in areas with dust. Table 2-3 Permitted activities in hazardous areas Activities Zone 2 Zone 22 Maintenance during operation (visual checks) allowed Warning: The enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS must not be opened for this activity in areas with dust. Cleaning allowed Not permitted Maintenance during operation Carry out maintenance every 6 months in the hazardous area. Maintenance of the AFD4 / AFD4 (FM) / AFD8 / AFS is basically restricted to visual inspections. The AFD4 / AFD4 (FM) / AFD8 / AFS may be in operation during this. Zone 2 Zone 22 Check that the cable entries and the grounding terminal of the enclosure are sealed and intact. Check whether there is any water or dust inside the enclosure. If there is, find out how it got there. Check that the wiring is secure (connectors, cables). Read the safety instructions in the section Safety instructions for connection (Page 14). Check that the cable entries and the grounding terminal of the enclosure are sealed and intact. Warning: It is not permitted to open the enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS. 26 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.7 Replacing AFD4 / AFD4 (FM) / AFD8 and AFS Cleaning WARNING Explosion hazard in Zone 22 The layer of dust on the enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS must not exceed a thickness of 5 mm. Remove the dust layer on the enclosure regularly! Note Following cleaning, run a functional check of the AFD4 / AFD4 (FM) / AFD8 / AFS. 2.7 Replacing AFD4 / AFD4 (FM) / AFD8 and AFS DANGER Explosion hazard In mixed operation with AFD (6ES7157-0AF81-0XA0), disconnect the FDC 157 couplers from the voltage before you replace the AFD4 (6ES7157-0AG81-0XA0), AFD4 (FM) (6ES7655-5DX40-1AA1) and AFD8 (6ES7157-0AG82-0XA0) field distributors. Note Read the safety instructions in the section Safety instructions for connection (Page 14). Replacing active field distributor AFD4 / AFD4 (FM) / AFD8 Note At points where you want to connect devices, replace the blanking caps inserted in the delivery state with FM-approved screwed glands (cable gland, metric, with sealing ring: M 16x1.5: L= 8-10mm, M 20x1.5: L= 8-10mm, torque (1.8 Nm)). DANGER Explosion hazard In hazardous area Zone 2, you are not permitted to disconnect the main line from an AFD4 / AFD4 (FM) / AFD8 during operation if it is connected directly to a FDC 157 coupler or an AFS. Before you start the work, disconnect the FDC 157 coupler(s) from the voltage. Product Information, 02/2015, A5E03775304-AC 27

Installing and connecting 2.7 Replacing AFD4 / AFD4 (FM) / AFD8 and AFS In hazardous area Zone 2, you are permitted to disconnect a main line to an AFD4 / AFD4 (FM) / AFD8 during operation if it connects two AFD4 / AFD4 (FM) / AFD8. Perform the following steps to replace an active field distributor: 1. Remove the 4 screws of the enclosure cover with a Phillips screwdriver. 2. Loosen the black and blue screw caps. 3. Disconnect the field devices S1 to S4 / S8. 4. Open the IP30 covers T1/T2 and disconnect the main lines. 5. Detach the grounding cable from the grounding terminal of the field distributor. 6. Replace the module. 7. Attach the grounding cable to the grounding terminal with a torque of 2.0 Nm. 8. Connect the field devices to the new AFD4 / AFD4 (FM) / AFD8. 9. Connect the main cables T1/T2 and close the IP30 covers until you hear them engage. 10.Tighten the screw caps with 1.3 Nm. 11.Place the enclosure cover on the base and tighten the 4 screws with the washers on the enclosure with a torque of 2.4 Nm. Replacing active field splitter AFS DANGER Explosion hazard in Zone 2 In hazardous area Zone 2, you are not permitted to disconnect lines from an AFS during operation. Before you start the work, disconnect the voltage supply to the FDC 157 coupler(s). Perform the following steps to replace an active field splitter AFS (6ES7157-0AG80-0XA0): 1. Remove the 4 screws of the enclosure cover with a Phillips screwdriver. 2. Loosen the black and blue screw caps. 3. Disconnect the line on the AFS. 4. Open the IP30 covers T1/T2 and disconnect the main lines. 5. Detach the grounding cable from the grounding terminal of the field distributor. 6. Replace the module. 7. Attach the grounding cable to the grounding terminal with a torque of 2.0 Nm. 8. Connect the line to the new AFS. 9. Connect the main cables T1/T2 and close the IP30 covers until you hear them engage. 10.Tighten the screw caps with 1.3 Nm. 11.Place the enclosure cover on the base and tighten the 4 screws with the washers on the enclosure with a torque of 2.4 Nm. 28 Product Information, 02/2015, A5E03775304-AC

Installing and connecting 2.8 LED displays of the active field distributor AFD4 / AFD4 (FM) / AFD8 2.8 LED displays of the active field distributor AFD4 / AFD4 (FM) / AFD8 Status and error messages of the active field distributor AFD4 / AFD4 (FM) / AFD8 Figure 2-13 LED display AFD4 / AFD4 (FM) / AFD8 Table 2-4 Status and error messages LED T1, T2 LED S1 to S8 Meaning green Main line is connected. Remedy orange Bus termination is inactive. Automatic bus termination is active. Cause: For example, last AFD in the line Short-circuit or no-load operation on the respective segment of the main line (T1 or T2) Flashes orange Cover of the main line terminal is open. Close the cover. Off Wires of a main line are reversed. Correct the wiring. Off No field device is connected to the respective spur line. green A field device is connected to the respective spur line. Flashes slowly Short-circuit on the spur line Eliminate the cause of the error. Product Information, 02/2015, A5E03775304-AC 29

Installing and connecting 2.9 LED displays of the active field splitter (AFS) LED T1, T2 LED S1 to S8 Meaning Remedy Flashes rapidly Debounce function is active (5 s after changes to the spur lines, for example, before or after a short-circuit) Wait for 5 s. One of the states "off", "blue" or "slow flashing" occurs. 2.9 LED displays of the active field splitter (AFS) Status and error messages from the active field splitter (AFS) Figure 2-14 LED display AFS Table 2-5 Status and error messages LED T1, T2 LED Y Meaning green Main line is connected. Remedy Red Bus termination is inactive. Short-circuit or no-load operation on the main line to a coupler Eliminate the cause of the error. Flashes red Cover of the main line terminal is open. Close the cover. Off Wires of a main line are reversed. Correct the wiring. green LED lights up when the current of the Y line is > 10 ma. 30 Product Information, 02/2015, A5E03775304-AC

Technical specifications 3 3.1 Standards and approvals for active field distributors AFD4 / AFD8 and AFS CE approval The described components meet the requirements and protective goals of the following EC directives and comply with the harmonized European Standards (EN), published for programmable logic controllers (PLC) in the official gazettes of the European Union: 2004/108/EG "Electromagnetic compatibility" (EMC Guidelines) 94/9/EG "Equipment and protective systems for use in hazardous areas" (Explosion protection directive) The EC Declarations of Conformity are available to the relevant authorities at the following address: Siemens Aktiengesellschaft Industry Sector I IA AS FA WF AMB Postfach 1963 D-92209 Amberg ATEX approval AFD4 / AFD8 II 3G Ex na ic [ic] IIC T4 Gc II 3D Ex tc [ic] IIIC T80 C Dc IP66 AFS II 3G Ex na IIC T4 Gc II 3D Ex tc IIIC T80 C Dc IP66 DEKRA 12ATEX0222X Ta = -40 C +70 C according to EN 60079-15 (Electrical apparatus for potentially explosive atmospheres; Type of protection "n") EN 60079-0 (Electrical apparatus for potentially explosive gas atmospheres Part 0: General Requirements) EN 60079-11 (AFD4 and AFD8 only) (Explosive atmospheres Part 11: Equipment protection by intrinsic safety "i") EN 60079-31 (Explosive atmospheres Part 31: Equipment dust ignition protection by enclosure "t") Product Information, 02/2015, A5E03775304-AC 31

Technical specifications 3.1 Standards and approvals for active field distributors AFD4 / AFD8 and AFS WARNING Personal injury and material damage can be incurred. In hazardous areas, personal injury and material damage can be incurred if plug connections are disconnected during operation. In hazardous areas, only disconnect the plug connections of all components when they are not under current. The exceptions are described in the section Safety instructions for connection (Page 14). IECEx approval IECEx DEK 12.0069X INMETRO approval UL-BR 13.0746X Korea approval KC registration number: KCC-REM-S49-DPPA Please note that this device corresponds to limit value class A in terms of the emission of radio frequency interference. This device can be used in all areas, except residential areas. 이기기는업무용 (A 급 ) 전자파적합기기로서판매자또는사용자는이점을주의하시기바라며가정외의지역에서사용하는것을목적으로합니다. Tick mark for Australia and New Zealand The active field distributors AFD4, AFD8 and AFS meet the requirements of the standards IEC 61000-6-2, IEC 61000-6-4. Industrial use SIMATIC products are designed for industrial applications. Table 3-1 Industrial use Area of application Requirements with regard to Interference emission Noise immunity Industry EN 61000-6-4: 2007 EN 61000-6-2: 2005 32 Product Information, 02/2015, A5E03775304-AC

Technical specifications 3.2 Standards and approval of active field distributor AFD4 (FM) 3.2 Standards and approval of active field distributor AFD4 (FM) FM approval Factory Mutual Research (FM) conforming to Approval Standard Class Number 3611, 3600, 3810 ANSI/ISA 82.02.01 (IEC 61010-1) CSA C22.2 No. 213 CSA 22.2 No. 1010.1 APPROVED for use in Class I, II, III Division 2, Groups A, B, C, D, E, F, G T4; Class I, Zone 2, Group IIC T4; Zone 22, AEx tc; IIIC T 80 C IP 66 Type 4X Installation notes 1. The AFD4 (FM) (MLFB = 6ES7655-5DX40-1AA1) is only suitable for installation in DIV. 2 / Zone 2 locations, and is not suitable for installation in DIV. 1 / Zone 1 or Zone 0 hazardous (classified) locations. 2. AFD4 (FM) and all other approved devices in the fieldbus system must be installed in accordance with the manufacturer s instructions. 3. Replace blank out panels (caps) by UL or CSA approved lead-throughs for connection of more field devices. Customer has to use a gland and cable "listed for the application" based on the NEC and CEC. Installations shall comply with the relevant requirements of the National Electrical Code (ANSI/NFPA-70 (NEC ), where applicable. 4. WARNING FOR APPLICATIONS IN DIV. 2 / ZONE 2 (CLASSIFIED) LOCATIONS: EXPLOSION HAZARD. EXCEPT FOR SPUR LINES (FIELD DEVICES), DO NOT CONNECT OR DISCONNECT ANY TRUNK LINE UNLESS THE AREA IS KNOWN TO BE NONHAZARDOUS. 3.3 Technical specifications of active field distributors AFD4 (6ES7157-0AG81-0XA0) Technical specifications Order number 6ES7157-0AG81-0XA0 Product version 01 Dimensions and weight Product Information, 02/2015, A5E03775304-AC 33

Technical specifications 3.3 Technical specifications of active field distributors AFD4 (6ES7157-0AG81-0XA0) Dimension W x H x D (mm) 220 x 120 x 83; without cable gland Mounting dimensions (mm) 204 x 82 Weight 2000 g Supply voltages Description By bus; no auxiliary power necessary Rated value Low limit of permitted range (DC) 16 V High limit of permitted range (DC) 32 V Polarity reversal protection ; in conjunction with FDC 157 Overvoltage protection No Power consumption Power consumption at no-load 24 ma Power consumption 24 ma + total current of all field devices Additional power consumption of the AFD4 at end of line Power consumption at max. current output per spur line 30 ma 264 ma Power loss Power loss, min. 384 mw Power loss, max. 3.2 W Interfaces PROFIBUS PA FOUNDATION Fieldbus H1 Connections Main cables Quantity 2 Connection terminals (internal) Screw-type terminals (2-pin) Cable gland (enclosure) M16 Cable type Type A Min. cable diameter 4 mm Max. cable diameter 9 mm Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Automatic bus termination Maximum permitted continuous current on main 1 A line Spur lines Number n 4 Number of connectable field devices 4 Connection terminals Screw-type terminals (2-pin) 34 Product Information, 02/2015, A5E03775304-AC

Technical specifications 3.3 Technical specifications of active field distributors AFD4 (6ES7157-0AG81-0XA0) Cable gland Cable type M16 Type A Min. cable diameter 4 mm Max. cable diameter 9 mm Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Short-circuit proof Intrinsically safe according to FISCO Max. DC current of the field devices on spur line 1 to 4 Short-circuit current (test current) Debounce logic Maximum no-load voltage on spur line Max. current output to field devices Grounding Direct grounding Interrupts, diagnostics, status information Status display Interrupts Diagnostics function Diagnostic indicator LED Data transmission Between main line and spur lines Galvanic isolation Between main line and spur lines Environmental requirements Operating temperature No 60 ma 6 ma < 30 V 240 ma Via ground rails None Min. -40 C Passive, no repeater function No Max. 70 C Storage/transport temperatures Min. -40 C Max. 85 C Relative humidity Operation, max. 95% Degree of protection IP66 Installation Zone 2 / Zone 22 Class I Zone 2 / Division 2 Product Information, 02/2015, A5E03775304-AC 35

Technical specifications 3.4 Technical specifications for active field distributor AFD4 (FM) (6ES7655-5DX40-1AA1) 3.4 Technical specifications for active field distributor AFD4 (FM) (6ES7655-5DX40-1AA1) Technical specifications Order No. 6ES7655-5DX40-1AA1 Product version 01 Dimensions and weight Dimension W x H x D (mm) 220 x 120 x 83; without cable gland Mounting dimensions (mm) 204 x 82 Weight 2000 g Supply voltages Description Via bus; no auxiliary power necessary Rated value Valid range, lower limit (DC) 16 V Valid range, upper limit (DC) 32 V Polarity reversal protection ; in conjunction with FDC 157 Overvoltage protection No Current consumption Current consumption at idle 24 ma Current consumption 24 ma + total current of all field devices Additional current consumption of AFD4 at end of line Current consumption at max. current output per spur line 30 ma 264 ma Power loss Power loss, min. 384 mw Power loss, max. 3.2 W Interfaces PROFIBUS PA FOUNDATION Fieldbus H1 Connections Main lines Quantity 2 Terminals (internal) Screw-type terminals (2-pin) Cable gland (enclosure) M20 Cable type Type A Min. cable diameter Max. cable diameter Corresponds to cable gland used Min. conductor cross-section 0.2 mm 2 36 Product Information, 02/2015, A5E03775304-AC

Technical specifications 3.4 Technical specifications for active field distributor AFD4 (FM) (6ES7655-5DX40-1AA1) Max. conductor cross-section 2.5 mm 2 Automatic bus termination Maximum permissible continuous main line current Spur cables Number n 4 Number of connectable field devices 4 Terminals Cable gland Cable type 1 A Screw-type terminals (2-pin) M16 Type A Min. cable diameter Max. cable diameter Corresponds to cable gland used Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Short-circuit proof Intrinsically safe according to FISCO No Max. DC current of the field devices spur line 1 to 60 ma 4 Short-circuit current (test current) 6 ma Debounce logic Max. no-load voltage on the spur line < 30 V Max. current output to field devices 240 ma Grounding Direct grounding By means of grounding bar Interrupts, diagnostics, status information Status indicator Interrupts None Diagnostic function Diagnostic display LED Data transmission Between main line and spur lines Passive, no repeater function Electrical isolation Between main line and spur lines No Environmental requirements Operating temperature min. -40 max. 70 Storage/transport temperature min. -40 max. 85 Product Information, 02/2015, A5E03775304-AC 37

Technical specifications 3.5 Technical specifications of active field distributors AFD8 (6ES7157-0AG82-0XA0) Relative humidity Operation, max. 95% Degree of protection IP66 Installation Class I Zone 2 / Division 2 Class II, III Division 2 3.5 Technical specifications of active field distributors AFD8 (6ES7157-0AG82-0XA0) Technical specifications Order number 6ES7157-0AG82-0XA0 Product version 01 Dimensions and weight Dimension W x H x D (mm) 360 x 120 x 83; without cable gland Mounting dimensions (mm) 344 x 82 Weight 3000 g Supply voltages Description By bus; no auxiliary power necessary Rated value Low limit of permitted range (DC) 16 V High limit of permitted range (DC) 32 V Polarity reversal protection ; in conjunction with FDC 157 Overvoltage protection No Power consumption Power consumption at no-load 34 ma Power consumption 34 ma + total current of all field devices Additional power consumption of the AFD8 at end of line Power consumption at max. current output per spur line 30 ma 514 ma Power loss Power loss, min. 544 mw Power loss, max. 4.1 W Interfaces PROFIBUS PA FOUNDATION Fieldbus H1 38 Product Information, 02/2015, A5E03775304-AC

Technical specifications 3.5 Technical specifications of active field distributors AFD8 (6ES7157-0AG82-0XA0) Connections Main cables Quantity 2 Connection terminals (internal) Cable gland (enclosure) Cable type Screw-type terminals (2-pin) M16 Type A Min. cable diameter 4 mm Max. cable diameter 9 mm Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Automatic bus termination Maximum permitted continuous current on main line Spur lines Number n 8 Number of connectable field devices 8 Connection terminals Cable gland Cable type 1 A Screw-type terminals (2-pin) M16 Type A Min. cable diameter 4 mm Max. cable diameter 9 mm Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Short-circuit proof Intrinsically safe according to FISCO Max. DC current of the field devices on spur line 1 to 8 Short-circuit current (test current) Debounce logic Maximum no-load voltage on spur line Max. current output to field devices Grounding No 60 ma 6 ma < 30 V 480 ma Direct grounding Via ground rails Interrupts, diagnostics, status information Status display Interrupts Diagnostics function Diagnostic indicator LED Data transmission Between main line and spur lines None Passive, no repeater function Product Information, 02/2015, A5E03775304-AC 39

Technical specifications 3.6 Technical specification of active field distributors AFS (6ES7157-0AG80-0XA0) Galvanic isolation Between main line and spur lines No Environmental requirements Operating temperature Min. -40 C Max. 70 C Storage/transport temperatures Min. -40 C Max. 85 C Relative humidity Operation, max. 95% Degree of protection IP66 Installation Zone 2 / Zone 22 Class I Zone 2 / Division 2 3.6 Technical specification of active field distributors AFS (6ES7157-0AG80-0XA0) Technical specifications Order number 6ES7157-0AG80-0XA0 Product version 01 Dimensions and weight Dimension W x H x D (mm) 220 x 120 x 83; without cable gland Mounting dimensions (mm) 204 x 82 Weight 2000 g Supply voltages Description By bus; no auxiliary power necessary Rated value Low limit of permitted range (DC) 16 V High limit of permitted range (DC) 32 V Polarity reversal protection ; in conjunction with FDC 157 Overvoltage protection No Power consumption Power consumption at no-load 54 ma Power loss Power loss, min. 864 mw 40 Product Information, 02/2015, A5E03775304-AC

Technical specifications 3.6 Technical specification of active field distributors AFS (6ES7157-0AG80-0XA0) Power loss, max. 2.13 W Interfaces PROFIBUS PA FOUNDATION Fieldbus H1 Connections Main cables Quantity 2 Connection terminals (internal) Cable gland (enclosure) Cable type Screw-type terminals (2-pin) M16 Type A Min. cable diameter 4 mm Max. cable diameter 9 mm Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Automatic bus termination Maximum permitted continuous current on main line Y, field bus connection Number n Number of connectable field devices 31 Connection terminals Cable gland Cable type No 1 A Max. 2, with bus termination resistor at the end of the line or on the FDC 157 Screw-type terminals (2-pin) M16 Type A Min. cable diameter 4 mm Max. cable diameter 9 mm Min. conductor cross-section 0.2 mm 2 Max. conductor cross-section 2.5 mm 2 Short-circuit proof ; in conjunction with FDC 157 Intrinsically-safe acc. to FISCO Max. total current at Y 1 A; limited by FDC 157 Debounce logic Maximum continuous output voltage Max. current output to field devices Grounding Direct grounding Interrupts, diagnostics, status information Status display Interrupts Diagnostics function Diagnostic indicator LED No No 32 V 1 A Via connection bar None Product Information, 02/2015, A5E03775304-AC 41

Technical specifications 3.7 Abbreviations Data transmission Between main line and spur lines Passive, no repeater function Galvanic isolation Between main line and spur lines No Environmental requirements Operating temperature Min. -40 C Max. 70 C Storage/transport temperatures Min. -40 C Max. 85 C Relative humidity Operation, max. 95% Degree of protection IP66 Installation Zone 2 / Zone 22 Class I Zone 2 / Division 2 3.7 Abbreviations Abbreviation AFD AFS FDC FF PA PA S T Meaning Active Field Distributor Active Field Splitter Field Device Coupler FOUNDATION Fieldbus Process automation Equipotential bonding Spur; Connection for field devices (spur line) Trunk, connection of the main line between the field distributors AFD4 / AFD4 (FM) / AFD8, AFS or FDC 42 Product Information, 02/2015, A5E03775304-AC

Index A AFD4 Technical specifications, 33 AFD4 (FM) Technical specifications, 36 AFD4 / AFD4 (FM) Schematic representation, 14 AFD4 / AFD4 (FM) / AFD8 Connecting, 15 Disconnecting the main line, 15 Grounding, 12 AFD4 / AFD4 (FM) / AFD8 / AFS cleaning, 27 Maintaining, 26 AFD8 Technical specifications, 38 AFS Connecting, 16 Disconnecting the main line, 16 Grounding, 12 Loop-through of the line, 23 Technical specifications, 40 AFS (6ES7157-0AG80-0XA0) Replace, 28 ATEX approval, 31 B Bus cable Stripping dimensions, 21 Bus termination switch, 23 C Cable glands Unused, 22, 25 CE approval, 31 Center feed, 23 Connecting AFD4 / AFD4 (FM) / AFD8 Rules, 17 Safety information, 14 Coupler redundancy, 7 D Degree of protection IP66 Impairment, 22, 25 Dimensioning SIMATIC Fieldbus Calculator, 5 Direct grounding, 13 Drill hole spacing, 11 E Equipotential bonding EB, 12 Explosion hazard, 14 F FM certifications, 33 Functions AFD4, 6 AFD4 (FM), 6 AFD8, 6 AFS, 7 G Grounding, 13 I IECEx approval, 32 INMETRO approval, 32 Installation Drill hole spacing, 11 IP30 cover, 15 K Korea approval, 32 L LED display AFD4 / AFD4 (FM) / AFD8, 29 AFS, 30 Product Information, 02/2015, A5E03775304-AC 43