MELSEC-Q CC-Link System Master/Local Module User's Manual -QJ61BT11N

Transcription

1 MELSEC-Q CC-Link System Master/Local Module User's Manual -QJ61BT11N

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3 SAFETY PRECAUTIONS (Read these precautions before using this product.) Before using this product, please read this manual and the relevant manuals carefully and pay full attention to safety to handle the product correctly. The precautions given in this manual are concerned with this product only. For the safety precautions of the programmable controller system, refer to the user s manual for the CPU module used. In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION". WARNING CAUTION Indicates that incorrect handling may cause hazardous conditions, resulting in death or severe injury. Indicates that incorrect handling may cause hazardous conditions, resulting in minor or moderate injury or property damage. Under some circumstances, failure to observe the precautions given under " CAUTION" may lead to serious consequences. Observe the precautions of both levels because they are important for personal and system safety. Make sure that the end users read this manual and then keep the manual in a safe place for future reference. [Design Precautions] WARNING For the operating status of each station after a communication failure in the data link, refer to Page 121, Section 7.5 in this manual. Failure to do so may result in an accident due to an incorrect output or malfunction. When connecting a peripheral with the CPU module or connecting an external device, such as a personal computer, with an intelligent function module to modify data of a running programmable controller, configure an interlock circuit in the program to ensure that the entire system will always operate safely. For other forms of control (such as program modification or operating status change) of a running programmable controller, read the relevant manuals carefully and ensure that the operation is safe before proceeding. Especially, when a remote programmable controller is controlled by an external device, immediate action cannot be taken if a problem occurs in the programmable controller due to a communication failure. To prevent this, configure an interlock circuit in the program, and determine corrective actions to be taken between the external device and CPU module in case of a communication failure. Do not write any data to the "system area" of the buffer memory in the intelligent function module. Also, do not use any "use prohibited" signal as an output signal from the CPU module to the intelligent function module. Doing so may cause malfunction of the programmable controller system. 1

4 [Design Precautions] [Design Precautions] [Installation Precautions] WARNING To set a refresh device in the network parameter, select the device Y for the remote output (RY) refresh device ("Remote Output (RY)"). If a device other than Y, such as M and L, is selected, the CPU module holds the device status even after its status is changed to STOP. For how to stop data link, refer to Page 320, Section in this manual. If a CC-Link dedicated cable is disconnected, the network may be unstable, resulting in a communication failure of multiple stations. Configure an interlock circuit in the program to ensure that the entire system will always operate safely even if communications fail. Failure to do so may result in an accident due to an incorrect output or malfunction. CAUTION Do not install the control lines or communication cables together with the main circuit lines or power cables. Keep a distance of 100mm or more between them. Failure to do so may result in malfunction due to noise. CAUTION Use the programmable controller in an environment that meets the general specifications in the user s manual for the CPU module used. Failure to do so may result in electric shock, fire, malfunction, or damage to or deterioration of the product. To mount the module, while pressing the module mounting lever located in the lower part of the module, fully insert the module fixing projection(s) into the hole(s) in the base unit and press the module until it snaps into place. Incorrect mounting may cause malfunction, failure or drop of the module. When using the programmable controller in an environment of frequent vibrations, fix the module with a screw. Tighten the screws within the specified torque range. Undertightening can cause drop of the screw, short circuit or malfunction. Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction. Shut off the external power supply (all phases) used in the system before mounting or removing the module. Failure to do so may result in damage to the product. Shut off the external power supply (all phases) used in the system before mounting or removing the module. Failure to do so may result in damage to the product. Do not directly touch any conductive parts and electronic components of the module. Doing so can cause malfunction or failure of the module. 2

5 [Wiring Precautions] [Wiring Precautions] WARNING Shut off the external power supply (all phases) used in the system before installation and wiring. Failure to do so may result in electric shock or damage to the product. After wiring, attach the included terminal cover to the module before turning it on for operation. Failure to do so may result in electric shock. CAUTION Use applicable solderless terminals and tighten them within the specified torque range. If any spade solderless terminal is used, it may be disconnected when the terminal screw comes loose, resulting in failure. Tighten the terminal screws within the specified torque range. Undertightening can cause short circuit, fire, or malfunction. Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction. Do not install the control lines or communication cables together with the main circuit lines or power cables. Failure to do so may result in malfunction due to noise. Prevent foreign matter such as dust or wire chips from entering the module. Such foreign matter can cause a fire, failure, or malfunction. A protective film is attached to the top of the module to prevent foreign matter, such as wire chips, from entering the module during wiring. Do not remove the film during wiring. Remove it for heat dissipation before system operation. Use CC-Link dedicated cables for a CC-Link system. If not, the performance of the CC-Link system is not guaranteed. For the maximum station-to-station distance and the overall cable distance, follow the specifications in Page 29, Section to Page 30, Section If not, normal data transmission is not guaranteed. Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled, resulting in damage to the module or cables or malfunction due to poor contact. When disconnecting the cable from the module, do not pull the cable by the cable part. For the cable with connector, hold the connector part of the cable. For the cable connected to the terminal block, loosen the terminal screw. Pulling the cable connected to the module may result in malfunction or damage to the module or cable. 3

6 [Startup and Maintenance Precautions] [Startup and Maintenance Precautions] [Disposal Precautions] WARNING Do not touch any terminal while power is on. Doing so will cause electric shock or malfunction. Shut off the external power supply (all phases) used in the system before cleaning the module or retightening the terminal screws or module fixing screws. Failure to do so may result in electric shock or cause the module to fail or malfunction. Undertightening can cause drop of the screw, short circuit or malfunction. Overtightening can damage the screw and/or module, resulting in drop, short circuit, or malfunction. CAUTION Do not disassemble or modify the modules. Doing so may cause failure, malfunction, injury, or a fire. Shut off the external power supply (all phases) used in the system before mounting or removing the module. Failure to do so may cause the module to fail or malfunction. After the first use of the product, do not mount/remove the module to/from the base unit, and the terminal block to/from the module more than 50 times (IEC compliant) respectively. Exceeding the limit of 50 times may cause malfunction. Before handling the module, touch a grounded metal object to discharge the static electricity from the human body. Failure to do so may cause the module to fail or malfunction. CAUTION When disposing of this product, treat it as industrial waste. 4

7 CONDITIONS OF USE FOR THE PRODUCT (1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions; i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major or serious accident; and ii) where the backup and fail-safe function are systematically or automatically provided outside of the PRODUCT for the case of any problem, fault or failure occurring in the PRODUCT. (2) The PRODUCT has been designed and manufactured for the purpose of being used in general industries. MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT LIMITED TO ANY AND ALL RESPONSIBILITY OR LIABILITY BASED ON CONTRACT, WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY INJURY OR DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE OPERATED OR USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS, OR WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS, TECHNICAL BULLETINS AND GUIDELINES FOR the PRODUCT. ("Prohibited Application") Prohibited Applications include, but not limited to, the use of the PRODUCT in; Nuclear Power Plants and any other power plants operated by Power companies, and/or any other cases in which the public could be affected if any problem or fault occurs in the PRODUCT. Railway companies or Public service purposes, and/or any other cases in which establishment of a special quality assurance system is required by the Purchaser or End User. Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as Elevator and Escalator, Incineration and Fuel devices, Vehicles, Manned transportation, Equipment for Recreation and Amusement, and Safety devices, handling of Nuclear or Hazardous Materials or Chemicals, Mining and Drilling, and/or other applications where there is a significant risk of injury to the public or property. Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT is limited only for the specific applications agreed to by Mitsubishi and provided further that no special quality assurance or fail-safe, redundant or other safety features which exceed the general specifications of the PRODUCTs are required. For details, please contact the Mitsubishi representative in your region. 5

8 INTRODUCTION Thank you for purchasing the Mitsubishi MELSEC-Q series programmable controllers. This manual describes the operating procedure, system configuration, installation, wiring, settings, functions, programming, and troubleshooting of the QJ61BT11N CC-Link system master/local module (hereafter abbreviated as master/local module). Before using this product, please read this manual carefully and develop familiarity with the functions and performance of the MELSEC-Q series programmable controller to handle the product correctly. When applying the program examples introduced in this manual to an actual system, ensure the applicability and confirm that it will not cause system control problems. Please make sure that the end users read this manual. Remark Operating procedures are explained using GX Works2. When using GX Developer, refer to Page 401, Appendix 7. COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES (1) Method of ensuring compliance To ensure that Mitsubishi programmable controllers maintain EMC and Low Voltage Directives when incorporated into other machinery or equipment, certain measures may be necessary. Please refer to one of the following manuals. QCPU User s Manual (Hardware Design, Maintenance and Inspection) Safety Guidelines (This manual is included with the CPU module or base unit.) The CE mark on the side of the programmable controller indicates compliance with EMC and Low Voltage Directives. (2) Additional measures To ensure that this product maintains EMC and Low Voltage Directives, please refer to one of the manuals listed under (1). 6

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10 CONTENTS CONTENTSAFETY PRECAUTIONS CONDITIONS OF USE FOR THE PRODUCT INTRODUCTION COMPLIANCE WITH EMC AND LOW VOLTAGE DIRECTIVES MANUAL PAGE ORGANIZATION TERM PACKING LIST CHAPTER 1 FEATURES CC-Link Master/Local Modules CHAPTER 2 PART NAMES 21 CHAPTER 3 SPECIFICATIONS General Specifications Performance Specifications Maximum number of connected modules Maximum overall cable distance (CC-Link Ver.1.10) Maximum overall cable distance (CC-Link Ver.1.00) CC-Link dedicated cables List of Functions List of I/O signals List of Buffer Memory Areas Assignment and Modes Assignment Modes Remote net Ver.1 mode Remote net Ver.2 mode Remote net additional mode Remote I/O net mode CHAPTER 4 PROCEDURE BEFORE THE OPERATION Operation Example CHAPTER 5 SYSTEM CONFIGURATION CC-Link System Configuration Configuration of the System Where a Master/Local Module is Mounted Connectable modules and the number of connectable modules Applicable programming tools Precautions for the System Configuration CHAPTER 6 INSTALLATION AND WIRING Installing the Module

11 6.2 Wiring Preparation before wiring Wiring procedure T-branch connection Station Number Setting Transmission Speed Setting Test After Wiring Line test Transmission speed test CHAPTER 7 PARAMETER SETTINGS Parameter Setting Method Parameter Setting List Parameter Settings for a Master Station Setting method Setting details Parameter Settings for a Local Station and Standby Master Station Setting method Setting details Status Difference Between a Master Station and a Slave Station at an Error CHAPTER 8 FUNCTIONS Basic Applications of the Functions Periodic communications (cyclic transmission) Non-periodic communications (transient transmission) Improving the System Reliability Slave station cut-off and automatic return Setting of the data link status upon an error in the programmable controller CPU of the master station Setting of the status of the input data from a data link faulty station Refreshing/compulsorily clearing a slave station when the switch on a programmable controller CPU is set to STOP Standby master function Cyclic data assurance Useful Applications of the Functions Remote device station initialization procedure registration function Event issuance for the interrupt program Automatic CC-Link startup Reserved station function Scan synchronization specification Error invalid station setting function Temporary error invalid station setting function Data link stop/restart Remote I/O station points setting (remote net Ver.2 mode only) Master station duplication error canceling function

12 CHAPTER 9 DEDICATED INSTRUCTIONS List of Dedicated Instructions, Applicable Devices, and Precautions G(P).RIRD Program example G(P).RIWT Program example G(P).RIRCV Program example G(P).RISEND Program example G(P).RIFR Program example G(P).RITO Program example G(P).RLPASET Program example (parameter setting example) G(P).RDMSG Program example CHAPTER 10 PROGRAMMING Precautions for Programming Example of Communications Between a Master Station and a Remote Device Station System configuration Settings for a master station Settings for a remote device station Checking the status of data link Program example Program example (when the initial setting is configured only on a program) Example of Communications Between a Master Station and a Local Station System configuration Settings for a master station Settings for a local station Checking the status of data link Program example Program example (to assure the integrity of cyclic data in each slave station) CHAPTER 11 TROUBLESHOOTING Troubleshooting Flowcharts Troubleshooting using LEDs Troubleshooting using a programming tool Lists of Problems Problems due to disconnection of a slave station Problems due to cyclic data error Problems due to transient data error Problems due to operation error in the master station

13 11.3 Error Codes How to check error codes Error code list CC-Link Diagnostics Using GX Works Monitoring the host station/other stations Executing the line test/obtaining the transmission speed setting Status logging Creating a check sheet Stopping and restarting data link Setting and canceling a temporary error invalid station Hardware information Hardware Test APPENDICES 326 Appendix 1 Description of I/O Signals Appendix 2 Buffer Memory Areas Appendix 3 Link Special Relays (SBs) and Link Special Registers (SWs) Appendix 3.1 Link special relays (SBs) Appendix 3.2 Link special registers (SWs) Appendix 4 Data Link Processing Time Appendix 4.1 Link scan time Appendix 4.2 Transmission delay time Appendix 4.3 Processing time of dedicated instructions Appendix 4.4 Link refresh time Appendix 5 Difference from traditional modules Appendix 5.1 Precautions when replacing an A(1S)J61BT11/A(1S)J61QBT11 with a QJ61BT11N Appendix 5.2 Precautions when replacing a QJ61BT11 with a QJ61BT11N Appendix 6 Upgrading the Functions of a Master/Local Module Appendix 7 When using GX Developer Appendix 7.1 Parameter settings Appendix 7.2 Device test Appendix 7.3 CC-Link diagnostics Appendix 8 Setting sheet Appendix 8.1 Assignment sheet Appendix 8.2 Network parameter setting sheet Appendix 8.3 Station information setting sheet Appendix 9 Checking the Function Version and Serial Number Appendix 10CC-Link Versions Appendix 11 External Dimension Diagram INDEX 417 REVISIONS WARRANTY

14 MANUAL PAGE ORGANIZATION In this manual, pages are organized and the symbols are used as shown below. The following illustration is for explanation purpose only, and should not be referred to as an actual documentation. "" is used for window names and items. shows operating procedures. The chapter of the current page is shown. shows mouse operations. *1 [ ] is used for items in the menu bar and the project window. The section of the current page is shown. shows reference pages. Ex. shows setting or operating examples. shows reference manuals. shows notes that require attention. shows useful information. *1 The mouse operation example is provided below. Menu bar Ex. [Online] [Write to PLC...] Select [Online] on the menu bar, and then select [Write to PLC...]. A window selected in the view selection area is displayed. Ex. Project window [Parameter] [PLC Parameter] Select [Project] from the view selection area to open the Project window. In the Project window, expand [Parameter] and select [PLC Parameter]. View selection area 12

15 TERM Unless otherwise specified, this manual uses the following terms. Term ACPU AJ65BT-R2(N) AnUCPU CC-Link dedicated cable C Controller module Built-in Ethernet port QCPU QCPU QnACPU RAS Remote input (RX) Remote output (RY) Remote register (RWr) Remote register (RWw) Link special relay (SB) Link special register (SW) Ver.1-compatible slave station Ver.2-compatible slave station Intelligent device station Intelligent function module Cyclic transmission Data link Device Transient transmission High Performance model QCPU Buffer memory Buffer memory address Programming tool Process CPU Basic model QCPU Master/local module Master station Message transmission Description A generic term for the following CPU modules: AOJ2HCPU, A1SCPU, A1SHCPU, A1SJCPU-S3, A1SJHCPU, A2SCPU, A2SHCPU, A2USCPU, A2USCPU-S1, A2USHCPU-S1, A1NCPU, A2NCPU, A2NCPU-S1, A3NCPU, A2ACPU, A2ACPU-S1, A3ACPU, A2UCPU, A2UCPU-S1, A3UCPU, and A4UCPU A generic term for the CC-Link system RS-232 interface modules: AJ65BT-R2 and AJ65BT-R2N A generic term for the A2USCPU, A2USCPU-S1, A2USHCPU-S1, A2UCPU, A2UCPU-S1, A3UCPU, and A4UCPU A generic term for a Ver.1.10-compatible CC-Link dedicated cable, CC-Link dedicated cable (Ver.1.00-compatible), and CC-Link dedicated high-performance cable (Ver.1.00-compatible) A generic term for the Q06CCPU-V, Q06CCPU-V-B, Q12DCCPU-V, Q24DHCCPU-V, and Q24DHCCPU-LS A generic term for the Q03UDVCPU, Q03UDECPU, Q04UDVCPU, Q04UDEHCPU, Q06UDVCPU, Q06UDEHCPU, Q10UDEHCPU, Q13UDVCPU, Q13UDEHCPU, Q20UDEHCPU, Q26UDVCPU, Q26UDEHCPU, Q50UDEHCPU, and Q100UDEHCPU A generic term for the Basic model QCPU, High Performance model QCPU, Process CPU, Redundant CPU, and Universal model QCPU A generic term for the following CPU modules: Q2ASCPU, Q2ASCPU-S1, Q2ASHCPU, Q2ASHCPU-S1, Q2ACPU, Q2ACPU-S1, Q3ACPU, Q4ACPU, and Q4ARCPU The abbreviation for Reliability, Availability, and Serviceability. This term refers to usability of automated equipment. Bit data input from a slave station to the master station (For some areas in a local station, data are input in the opposite direction.) Bit data output from the master station to a slave station (For some areas in a local station, data are output in the opposite direction.) Word data input from a slave station to the master station (For some areas in a local station, data are input in the opposite direction.) Word data output from the master station to a slave station (For some areas in a local station, data are output in the opposite direction.) Bit data that indicates the operating status and data link status of modules on the master and local stations Word data that indicates the operating status and data link status of modules on the master and local stations A slave station that supports the remote net Ver.1 mode A slave station that supports the remote net Ver.2 mode A station, such as the AJ65BT-R2(N), that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic transmission. This station responds to a transient transmission request from another station and also issues a transient transmission request to another station. A MELSEC-Q/L series module that has functions other than input and output, such as an A/D converter module and D/A converter module A function by which data are periodically exchanged among stations on the same system using link devices (RX, RY, RWw, and RWr) A generic term for cyclic transmission and transient transmission A device (X, Y, M, D, or others) in a CPU module A function of communication with another station, which is used when requested by a dedicated instruction or a programming tool A generic term for the Q02CPU, Q02HCPU, Q06HCPU, Q12HCPU, and Q25HCPU The memory of an intelligent function module used to store data (such as setting values and monitored values) for communication with a CPU module An address that indicates the storage location of data assigned to the buffer memory in an intelligent function module A generic term for GX Works2 and GX Developer A generic term for the Q02PHCPU, Q06PHCPU, Q12PHCPU, and Q25PHCPU A generic term for the Q00JCPU, Q00CPU, and Q01CPU The abbreviation for the QJ61BT11N CC-Link system master/local module A station that controls the entire system. This station can perform cyclic transmission and transient transmission with all stations. Only one master station can be used in a system. A function to communicate data between a master station and slave stations when the model names of slave stations are read, the data are backed up/restored, or the dedicated instructions are requested 13

16 Term Universal model QCPU High-speed Universal model QCPU Remote I/O net mode Remote I/O station Remote device station Remote net Ver.1 mode Remote net Ver.2 mode Remote net mode Remote net additional mode Remote station Link scan (link scan time) Local station Disconnection Slave station Dedicated instruction Standby master station Redundant CPU Return Description A generic term for the following CPU modules: Q00UJCPU, Q00UCPU, Q01UCPU, Q02UCPU, Q03UDCPU, Q03UDVCPU, Q03UDECPU, Q04UDHCPU, Q04UDVCPU, Q04UDEHCPU, Q06UDHCPU, Q06UDVCPU, Q06UDEHCPU, Q10UDHCPU, Q10UDEHCPU, Q13UDHCPU, Q13UDVCPU, Q13UDEHCPU, Q20UDHCPU, Q20UDEHCPU, Q26UDHCPU, Q26UDVCPU, Q26UDEHCPU, Q50UDEHCPU, and Q100UDEHCPU A generic term for the Q03UDVCPU, Q04UDVCPU, Q06UDVCPU, Q13UDVCPU, and Q26UDVCPU A mode used to perform high-speed communications in a system consisting of a master station and remote I/O station(s) only A station, such as the AJ65BTB1-16D and AJ65SBTB1-16D, that exchanges I/O signals (bit data) with another station by cyclic transmission. This station cannot perform transient transmission. A station, such as the AJ65BT-64AD, AJ65BT-64DAV, and AJ65BT-64DAI, that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic transmission. This station cannot perform transient transmission. A mode used to configure a CC-Link system consisting of a master station and Ver.1-compatible slave station(s) only A mode used to configure a CC-Link system containing a Ver.2-compatible slave station. Compared to the remote net Ver.1 mode, the number of cyclic points per station is increased from 128 to 896 for RX/RY, and from 16 to 128 for RWr/RWw. A mode used to communicate data with all stations (remote I/O station, remote device station, local station, intelligent device station, and standby master station) in a CC-Link system. There are three modes: remote net Ver.1 mode, remote net Ver.2 mode, and remote net additional mode. A mode used to increase the number of cyclic points by adding a Ver.2-compatible slave station to an existing system consisting of Ver.1-compatible slave stations only. Programs in the remote net Ver.1 mode can be used without change because RX/RY/RWr/RWw data of a Ver.1-compatible slave station are stored in the Ver.1-compatible buffer memory areas. A generic term for a remote I/O station and a remote device station Time required for all stations in a system to transmit data. The link scan time depends on data volume and the number of transient transmission requests. A station that performs cyclic transmission and transient transmission with the master station and other local stations. The station is controlled by programs in the CPU module or other equivalent modules on the station. Processing that stops data link if a data link error occurs A generic term for a remote I/O station, remote device station, local station, intelligent device station, and standby master station An instruction that simplifies programming for using functions of intelligent function modules A station that serves as a master station to continue communications if the master station fails A generic term for the Q12PRHCPU and Q25PRHCPU Processing that restarts data link when a station recovers from an error 14

17 PACKING LIST The following items are included in the package of this product. Before use, check that all the items are included. QJ61BT11N QJ61BT11N Before Using the Product Terminating resistor: 110, 1/2W (Brown-Brown-Brown) 2 (for Ver.1.10-compatible CC-Link dedicated cables or CC-Link dedicated cables (Ver.1.00-compatible)) Terminating resistor: 130, 1/2W (Brown-Orange-Brown) 2 (for CC-Link dedicated high-performance cables (Ver compatible)) 15

18 CHAPTER 1 FEATURES 1.1 CC-Link CC-Link is a system where distributed modules, such as I/O modules and intelligent function modules, are connected using dedicated cables, enabling a CPU module to control the modules. Ethernet Plant level (Information management) CC-Link IE Controller Network Among production lines (Production control) CC-Link IE Field Network Within a line (Equipment control) CC-Link Between a control panel and equipment (I/O control of equipment) (1) High-speed communications On/off information of I/O signals and values can be smoothly exchanged at high speed. This feature allows the configuration of a variety of systems. (2) System with reduced wiring Because modules can be distributed in large equipment, such as conveyor lines and machines, a system with reduced wiring can be achieved. (3) Flexible system design Various CC-Link devices manufactured by partner vendors are available. Therefore, a system can be flexibly designed according to application. (4) Configuration of a distributed system By connecting multiple programmable controllers to a CC-Link system, a simple distributed system can be configured. The multiple programmable controllers can perform data link with remote stations and intelligent device stations and can control distributed devices in a CC-Link system. 16

19 CHAPTER 1 FEATURES 1.2 Master/Local Modules 1 By using master/local modules, MELSEC-Q series programmable controllers can be connected to a CC-Link system. Remotely-located devices in a CC-Link system can be controlled as if they were on the same base unit as the master/local module. The module works as a master station or a local station in CC-Link. (1) Data communications (a) Periodic communications (cyclic transmission) Master/local modules can periodically exchange data with other stations in a CC-Link system. ( Page 125, Section 8.1.1) For example, I/O signals of remotely-located stations in a CC-Link system can be used in the same way as those of the master station. Terminating resistor Master station Remote I/O station Remote device station, intelligent device station Local station Terminating resistor CPU module X Y W Master station RX RY RWw RWr Remote I/O station RX RY Remote device station Intelligent device station Local station CPU module (b) Non-periodic communications (transient transmission) Data can be communicated when a request is issued unlike cyclic transmission. Direct access to buffer memory areas and devices in other stations can be performed in transient transmission. ( Page 173, CHAPTER 9) RX RY RWw RWr RY RX RWr RWw Y X W 1.2 Master/Local Modules CPU module Command Master station Local station CPU module Instruction Device 1234H Write request Device 1234H Terminating resistor Terminating resistor 17

20 (2) Parameter settings and diagnostics using a programming tool (a) Parameter settings using a programming tool Parameters of master/local modules can be set using a programming tool. Therefore, parameter setting programs need not to be created; resulting in reduction in the program amount. ( Page 93, CHAPTER 7) Parameters of a master station can be also set using a program. ( Page 205, Section 9.8) When parameters are set using a program, parameter settings of the master station can be changed without resetting the CPU module. 18

21 CHAPTER 1 FEATURES (b) Diagnostics using a programming tool The status of a CC-Link system can be checked using a programming tool. Error locations and error causes are displayed in a programming tool, enabling the user to quickly troubleshoot the problem. ( Page 311, Section 11.4) 1 (3) CC-Link Ver.2-compatible module Since the master/local module is a CC-Link Ver.2-compatible module, the number of points per system can be increased up to 8192 for RX/RY and the number of words is up to 2048 for RWr/RWw. On a station basis, the number of points can be increased up to 896 for RX/RY and the number of words is 128 for RWr/RWw. A CC-Link Ver.2-compatible system can be larger than a CC-Link Ver.1-compatible system. 1.2 Master/Local Modules Ex. Maximum number of points of the remote input (RX) and remote output (RY) CC-Link Ver points CC-Link Ver points 19

22 (4) Prevention of a system failure (a) Continuation of communications upon module error Since a bus topology is employed, communications among normal modules continue even if a module goes down due to power-off or other causes. The equipped two-piece terminal block is removable, enabling module change during data link. *1 Note that if a cable is disconnected, data link fails among all stations. *1 Power off the module to be replaced before removal. Check that settings of the module that replaces the currently mounted module are the same as those of the mounted module. Master station Error Terminating resistor Data link is continued. Data link is continued. Terminating resistor (b) Automatic return when a disconnected station recovers When the station disconnected from a network due to a data link error recovers, it automatically restarts data link. The time between an error and a return can be shortened. Master station Error Terminating resistor Terminating resistor Recovering from the error Master station Terminating resistor Returned Terminating resistor The master/local module can prevent a system failure by using the following functions as well. ( Page 128, Section 8.2 to Page 154, Section 8.3) Even if a master station fails, cyclic transmission can be continued by having the standby master station served as a master station. When a module is replaced, error detection can be temporarily disabled. 20

23 CHAPTER 2 PART NAMES CHAPTER 2 PART NAMES This chapter describes the part names of the master/local modules. 2 No. Name Application 1) RUN LED ON OFF L RUN LED ON OFF MST LED ON OFF S MST LED ON OFF SD LED ON OFF RD LED ON OFF Indicates the operating status. Operating normally A hardware failure or a watchdog timer error has occurred. Indicates the data link status. Performing data link Not performing data link Indicates whether the module is operating as a master station. Operating as a master station Operating as a local station or a standby master station (in standby status) Indicates whether the module is operating as a standby master station. Operating as a standby master station (in standby status) Operating as a master station or a local station The LED also turns off when a standby master station switches to a master station. Indicates whether the module is sending data. Sending data Not sending data Indicates whether the module is receiving data. Receiving data Not receiving data 21

24 No. Name Application 1) 2) ERR. LED ON Flashing OFF L ERR. LED ON Flashing at regular intervals Flashing at irregular intervals OFF Station number setting switch Indicates the error status of the master/local module. The details of errors can be checked by using the following. CC-Link diagnostics ( Page 311, Section 11.4) Detailed LED display status (SW0058) ( Page 351, Appendix 3.2) Any of the following errors has occurred. The error on all the stations was detected. The value outside the range is set for the station number setting switches or transmission speed/mode setting switch of the master/local module. Two or more master stations are connected on the same line. Settings are incorrect. A cable is disconnected. Or a transmission path is affected by noise. A data link faulty station was detected. Or the station number set for a remote station is already in use. Operating normally Indicates the error status of a data link. A data link error has occurred at the host station. The settings of the switches 2) and 3) were changed when the power was on. (Note that the change of the switch may not be detected at the time of error on all the stations.) The communications are unstable due to the following reasons. A terminating resistor is not connected. The communications are affected by noise. Operating normally Sets the station number of the master/local module. (Default: 0) Set the station numbers not used for other stations. <Setting range> Master station: 0 Local station: 1 to 64 Standby master station: 1 to 64 If a number other than 0 to 64 is set, the ERR. LED turns on. 22

25 CHAPTER 2 PART NAMES No. Name Application Sets the transmission speed and mode of the master/local module. (Default: 0) Set the same value of the transmission speed for all stations. Mode Transmission speed setting Switch number 2 Transmission speed: 156kbps 0 Transmission speed: 625kbps 1 Online Transmission speed: 2.5Mbps 2 Transmission speed: 5Mbps 3 Transmission speed: 10Mbps 4 3) Transmission speed/mode setting switch Line test ( Page 86, Section 6.5.1) When the station number setting switches are set at 0 Line test 1 When the station number setting switches are set at 1 to 64 Line test 2 Transmission speed: 156kbps 5 Transmission speed: 625kbps 6 Transmission speed: 2.5Mbps 7 Transmission speed: 5Mbps 8 Transmission speed: 10Mbps 9 Transmission speed: 156kbps A Transmission speed: 625kbps B Hardware test ( Page 324, Section 11.5) Transmission speed: 2.5Mbps C Transmission speed: 5Mbps D Transmission speed: 10Mbps E Setting not allowed F 4) Terminal block 5) Serial number display Used to connect a CC-Link dedicated cable. ( Page 77, Section 6.2.2) The SLD and FG terminals are connected inside the module. Because a two-piece terminal block is used, the module can be replaced without disconnecting the signal line to the terminal block. Before installing or removing the terminal block, power off the module. Indicates the serial number on the rating plate. The settings of the station number setting switches and the transmission speed/mode setting switch are enabled by resetting the CPU module or powering off and on the system. 23

26 CHAPTER 3 SPECIFICATIONS This chapter describes the specifications, functions, I/O signals, buffer memory, remote I/O (RX and RY) and remote register (RWr and RWw) of the master/local module. 3.1 General Specifications For the general specifications of the master/local module, refer to the following. User's manual for the CPU module used (hardware design, maintenance and inspection) 3.2 Performance Specifications Item Transmission speed Maximum number of connected modules (master station) Number of occupied stations (local station) CC-Link Ver.1 Maximum number of link points per system CC-Link Ver.2 CC-Link Ver.1 Specifications Selected from 156kbps, 625kbps, 2.5Mbps, 5Mbps, and 10Mbps. 64 ( Page 27, Section 3.2.1) 1 to 4 stations (The number of stations can be changed using a programming tool.) Remote I/O (RX, RY): 2048 points Remote register (RWw): 256 points (master station remote device station/local station/intelligent device station/standby master station) Remote register (RWr): 256 points (remote device station/local station/intelligent device station/standby master station master station) Remote I/O (RX, RY): 8192 points Remote register (RWw): 2048 points (master station remote device station/local station/intelligent device station/standby master station) Remote register (RWr): 2048 points (remote device station/local station/intelligent device station/standby master station master station) Remote I/O (RX, RY): 32 points (30 points for a local station) Remote register (RWw): 4 points (master station remote device station/local station/intelligent device station/standby master station) Remote register (RWr): 4 points (remote device station/local station/intelligent device station/standby master station master station) Number of link points per remote station/local station/intelligent device station/standby master station *1 CC-Link Ver.2 Item Remote I/O (RX, RY) Remote register (RWw) Expanded Cyclic Setting Single Double Quadruple Octuple 32 points 32 points 64 points 128 points (30 points for a (30 points for a (62 points for a (126 points for a local station) local station) local station) local station) 4 points 8 points 16 points 32 points Remote register (RWr) 4 points 8 points 16 points 32 points 24

27 CHAPTER 3 SPECIFICATIONS Item Communication method Synchronization method Encoding method Network topology Transmission format Broadcast polling method Frame synchronization method NRZI method Bus (RS-485) HDLC compliant Specifications Error control system CRC (X 16 + X 12 + X 5 + 1) Ver.1.10-compatible CC-Link dedicated cable CC-Link dedicated cable (Ver.1.00-compatible) CC-Link dedicated high-performance cable (Ver.1.00-compatible) Connection cable The cables above cannot be used at the same time. If used, normal data transmission is not guaranteed. In addition, select a terminating resistor to be connected according to the cable type. ( Page 76, Section (3)) 3 Maximum overall cable distance Depends on the transmission speed and CC-Link version. ( Page 29, Section 3.2.2, (maximum transmission distance) Page 30, Section 3.2.3) Standby master function RAS function Automatic return function Slave station cutoff function Error detection using link special relays (SBs) and link special registers (SWs) Number of occupied I/O points 32 points (I/O assignment: intelli 32 points) Internal current consumption (5VDC) 0.46A Weight 0.12kg *1 In CC-Link Ver.1, increasing the number of occupied stations can increase the number of link points per station. In CC-Link Ver.2, increasing the number of occupied stations and setting the greater value in the expanded cyclic setting can increase the number of link points per station. For the points, refer to the following table. Item 1 station occupied Remote I/O (RX, RY) Remote register (RWw) CC-Link Ver.2 CC-Link Ver.1 Expanded Cyclic Setting Single Double Quadruple Octuple 32 points 32 points 32 points 64 points 128 points (30 points for a (30 points for a (30 points for a (62 points for a (126 points for a local station) local station) local station) local station) local station) 4 points 4 points 8 points 16 points 32 points 3.2 Performance Specifications Number of link points by the number of occupied stations Remote register (RWr) Remote I/O (RX, RY) 4 points 4 points 8 points 16 points 32 points 64 points 64 points 96 points 192 points 384 points (62 points for a (62 points for a (94 points for a (190 points for a (382 points for a local station) local station) local station) local station) local station) 2 stations occupied Remote register (RWw) 8 points 8 points 16 points 32 points 64 points Remote register (RWr) 8 points 8 points 16 points 32 points 64 points 25

28 CC-Link Ver.2 Item CC-Link Ver.1 Expanded Cyclic Setting Single Double Quadruple Octuple Remote I/O (RX, RY) 96 points (94 points for a local station) 96 points (94 points for a local station) 160 points (158 points for a local station) 320 points (318 points for a local station) 640 points (638 points for a local station) 3 stations occupied Remote register (RWw) 12 points 12 points 24 points 48 points 96 points Number of link points by the number of occupied stations Remote register (RWr) Remote I/O (RX, RY) 12 points 12 points 24 points 48 points 96 points 128 points 128 points 224 points 448 points (126 points for a (126 points for a (222 points for a (446 points for a local station) local station) local station) local station) 896 points (894 points for a local station) 4 stations occupied Remote register (RWw) 16 points 16 points 32 points 64 points 128 points Remote register (RWr) 16 points 16 points 32 points 64 points 128 points 26