Ethernet/IP Comms between a WAGO and a Mettler Toledo JAGXTREME Terminal Application note

Transcription

1 Ethernet/IP Comms between a WAGO and a Mettler Toledo JAGXTREME Terminal, English Version 1.0.0

2 2 General Copyright 2004 by WAGO Kontakttechnik GmbH All rights reserved. WAGO Kontakttechnik GmbH Hansastraße 27 D Minden Phone: +49 (0) 571/ Fax: +49 (0) 571/ info@wago.com Web: Technical Support Phone: +49 (0) 571/ Fax: +49 (0) 571/ support@wago.com Every conceivable measure has been taken to ensure the correctness and completeness of this documentation. However, as errors can never be fully excluded we would appreciate any information or ideas at any time. We wish to point out that the software and hardware terms as well as the trademarks of companies used and/or mentioned in the present manual are generally trademark or patent protected.

3 Table of Contents 3 TABLE OF CONTENTS 1 Important comments Legal principles Copyright Personnel qualification Intended use Range of validity Symbols Description Reference Material Solution Configuring the IP Addresses of the Mettler Toledo JAGXTREME Enabling the WAGO Controller for Ethernet/IP Communications Programming the WAGO Controller to send unscheduled messages to the JAGXTREME Assigning the PLC Configuration Downloading The Project...14

4 4 Important comments 1 Important comments 1.1 Legal principles Copyright To ensure fast installation and start-up of the units described in this manual, we strongly recommend that the following information and explanation is carefully read and adhered to. This manual is copyrighted, together with all figures and illustrations contained therein. Any use of this manual which infringes the copyright provisions stipulated herein, is not permitted. Reproduction, translation and electronic and photo-technical archiving and amendments require the written consent of WAGO Kontakttechnik GmbH. Non-observance will entail the right of claims for damages Personnel qualification Intended use The use of the product detailed in this manual is exclusively geared to specialists having qualifications in PLC programming, electrical specialists or persons instructed by electrical specialists who are also familiar with the valid standards. WAGO Kontakttechnik GmbH declines all liability resulting from improper action and damage to WAGO products and third party products due to non-observance of the information contained in this manual. For each individual application, the components supplied are to work with a dedicated hardware and software configuration. Modifications are only admitted within the framework of the possibilities documented in the manuals. All other changes to the hardware and/or software and the non-conforming use of the components entail the exclusion of liability on part of WAGO Kontakttechnik GmbH. Please direct any requirements pertaining to a modified and/or new hardware or software configuration directly to WAGO Kontakttechnik GmbH.

5 Important comments Range of validity 1.3 Symbols This application note is based on the stated hardware and software of the specific manufacturer as well as the correspondent documentation. This application note is therefore only valid for the described installation. New hardware and software versions may need to be handled differently. Please note the detailed description in the specific manuals. Danger Always observe this information to protect persons from injury. Warning Always observe this information to prevent damage to the device. Attention Marginal conditions must always be observed to ensure smooth operation. ESD (Electrostatic Discharge) Warning of damage to the components by electrostatic discharge. Observe the precautionary measure for handling components at risk. Note Routines or advice for efficient use of the device and software optimisation. More information References to additional literature, manuals, data sheets and INTERNET pages

6 6 Description 2 Description The purpose of this document is to provide an example of interfacing the WAGO Ethernet Controller with a Mettler Toledo JAGXTREME terminal using the Ethernet/IP protocol. In this example, the WAGO communicates to the JAGXTREME via unscheduled messaging (also known as explicit messaging ). The JAGXTREME responds to unscheduled messages originated by the WAGO , allowing the to configure and read the JAGXTREME s batch process data. 3 Reference Material - Mettler Toledo JAGXTREME w/ ControlNet Interface Card - WAGO Ethernet Controller - CoDeSys (WAGO-IO-PRO CAA) Version Programming Software NOTE: This procedure assumes that the WAGO contains a valid IP address and it is installed on a working network, along with the JAGXTREME and the Programming Terminal. If necessary, refer to WAGO s Application Note A for assigning a static IP address to the WAGO

7 Solution 7 4 Solution There are three main steps in setting up this system: 1) Configuring the IP Addresses of the Mettler Toledo JAGXTREME 2) Enable the WAGO Controller for Ethernet/IP Communications 3) Programming the WAGO Controller to send unscheduled messages to the JAGXTREME 4.1 Configuring the IP Addresses of the Mettler Toledo JAGXTREME The Mettler Toledo JAGXTREME with ControlNet interface card has two E- thernet ports. The Ethernet/IP port, located on the ControlNet interface card, is configured through the internal webpages of the JAGXTREME. To access these webpages, it is first necessary to set the IP address of the JAGXTREME s standard Ethernet port. This is accomplished via the front keypad of the JAGXTREME. To configure the IP address of the JAGXTREME s standard Ethernet port via the front keypad: 1) Turn on JAGXTREME, and wait until it completes its initialization sequence. 2) Push the F key to enter Setup mode. 3) Push the Enter key. 4) Press the Scroll Menu key repeatedly, until the text Config. Network is displayed. 5)Press the Enter key so the text Ethernet is displayed.

8 8 Solution 6) Press the Enter key again. The MAC ID is displayed. 7) Press the Enter key again. The IP address is displayed. 8) Enter the new IP address using the numeric keypad. To enter the IP address , push the key sequence ) Press the Enter key again. The Subnet mask is displayed. 10) Change the Subnet mask (if necessary) using the numeric keypad. To enter the Subnet mask ,push the key sequence ) Press the Enter key again. The Gateway address is displayed. 12) Change the Gateway address (if necessary) using the numeric keypad. 13) Press the ESC key repeatedly, until the text Exit Setup? is displayed. 14) Press the Enter key. The new settings are now in place. Once the IP Address of the standard ethernet port is set, it is now possible to configure the IP address of the Ethernet/IP port. This is done using a browser to access the internal webpages of the JAGXTREME. To configure the IP address of the JAGXTREME s Ethernet/IP port via a browser: 15) Run the browser utility (e.g. Microsoft s Internet Explorer) on the programming terminal. 16) In the address bar, enter the IP address of the JAGXTREME s standard Ethernet port, and hit Enter. The JAGXTREME s internal webpage should appear. If it does not appear, check that you have an Ethernet link to the JAGXTREME s standard Ethernet port, and the IP address of the programming terminal is compatible with the IP address of the JAGXTREME.

9 Solution 9 17) Click on the Communication icon in the left frame. 18) Click ControlNet PLC Interface. 19) If the JAGXTREME is in Run Mode, put it in Program Mode by clicking the Program Mode button. 20) Change the IP Address, Subnet mask, and Gateway as required. Click Save Changes when finished. 21) Put the JAGXTREME back in Run Mode by clicking the Run Mode button. The JAGXTREME Ethernet/IP port is now ready to communicate on the Ethernet/IP network.

10 10 Solution 4.2 Enabling the WAGO Controller for Ethernet/IP Communications The Ethernet/IP protocol is not recognized by default by the Ethernet Controller, so it is necessary to enable this protocol. This is done using a browser to access the internal webpages of the To enable the for Ethernet/IP communications using a browser: 1) Run the browser utility (e.g. Microsoft s Internet Explorer) on the programming terminal. 2)In the address bar, enter the IP address of the Ethernet Controller, and hit Enter. The s internal webpage should appear. If it does not appear, check that you have an Ethernet link to the s Ethernet port, and the IP address of the programming terminal is compatible with the IP address of the ) Click Port in the left browser frame. The following will appear: 4) Enter the following: User Name:admin Password: wago Click OK. The Port configuration frame will appear.

11 Solution 11 5) In this frame, you must check Ethernet IP as enabled. You may enable or disable other protocols at this time as well. Click SUBMIT when finished. The WAGO Ethernet Controller is now enabled for Ethernet/IP communications. 4.3 Programming the WAGO Controller to send unscheduled messages to the JAGXTREME The Ethernet Controller can be programmed to send unscheduled messages to other Ethernet/IP devices using the CoDeSys software development tool. The library EML.LIB contains the function block that will be used for sending and receiving Ethernet/IP messages. Make sure the CoDeSys development tool and the library EML.LIB are installed on the programming terminal before proceeding. To program the Controller to send unscheduled messages to the JAGXTREME: 1) Start CoDeSys. 2) From the top menu bar, select File..New. You may be asked if you d like to save your existing program. Answer accordingly. A Target Settings window will appear. Select the appropriate target device for your application. Several configuration options will appear. Click OK to continue. A window will appear labeled New POU. 3) Complete the New POU information as follows: Name of the new POU: PLC_PRG Type of the POU: Program Language of the POU: LD Click OK to continue. The Variable Editor (upper) and Logic Editor (lower) windows will be displayed.

12 12 Solution 4) In the Variable Editor window, declare the project variables so they appear as shown below. These variables can be declared by simply typing the text as it is shown. The function block that handles the Ethernet/IP communications, EML_UCMM_REQ, will be inserted in the program logic. Before it can be inserted, the library EML.LIB must be included in the project. 5) From the top menu bar, select Window..Library Manager. Again from the top menu bar, select Insert..Additional Library. Select the library EML.LIB, and hit Enter. 6) In the left window, double-click PLC_PRG to return to the project logic editor. 7) Click on the empty rung of ladder logic. From the top menu bar, select Insert..Box with EN. The AND operator box will appear. Click on the word AND, replace it with the word EML_UCMM_REQ, and hit Enter. Click on the??? on the top of the EML_UCMM_REQ operator box. Type in JAGXTREME, and hit Enter. Replace or delete the remainder of the??? fields, until the rung of logic appears as follows:

13 Solution 13 To insert the circle in front of the ENABLE input, right-click on the short line in front of the input, and select NEGATE from the menu. To delete the tail at the end of the CONFIRM output, click on the right end of the tail, and hit Delete. 8) Check your project for errors, by selecting Project..Build from the top menu bar. At this point, there should be no errors in the project. Error messages will be reported in the bottom window below the logic editor window. All errors must be corrected before a project can be downloaded to the controller. 4.4 Assigning the PLC Configuration Before the project can be executed, it is necessary to assign the PLC Configuration of I/O modules. 9) Begin by clicking the Resources tab at the bottom of the Project Organizer window. 10) Double-Click PLC Configuration in the Project Organizer window, then Double-Click Fieldbus Assignment in the window to the right, as shown below.

14 14 Solution 11) Repeatedly Right-Click on Controller[FIX], and select Append Module from the menu. Each time you do, the text Module[VAR] will be added as a sub-item. Do this for each I/O module on your node of I/O. (Do not append modules for the Controller or the End Module). When finished, the configuration should appear as shown below if your node of I/O contains four modules. 4.5 Downloading The Project A communications channel needs to be configured for communicating with the The following example shows how to setup a communications channel between a computer with an ethernet adapter and a WAGO Ethernet Controller. 1) From the top menu bar, select Online..Communication Parameters to configure the communications channel to the ) Click New. The following window will appear: 3) In the Name field, type in a unique name for the communications channel.

15 Solution 15 4) In the selection list, select Tcp/Ip as the communications driver. Click OK. A window similar to the one below will appear: 5) Double-click on the word localhost. An entry field will appear. Enter in the IP address of the WAGO , and hit Enter. 6) Click OK. (Be sure to hit Enter before clicking OK.) 7) You should now be ready to Login to the and download a project. Click Online..Login. The window below will appear, prompting to download a new program. 8) Click Yes to download the program. 9)Select Online..Run from the top menu bar to begin the execution of the project. This project will read the Scale Weight Object of the JAGXTREME terminal. The Gross Weight will be reported back, and can be viewed in the byte array Data. The Scale Weight Object was read, because the values 0x64, 0x01, and 0x01 were assigned to the CLASS, INST (Instance), and ATTR (Attribute) inputs of the EML_UCMM_REQ function block. The function block was instructed to read this object, because the SRV (Service) input was set to EML_GET_ATTR. By setting the SRV input to EML_SET_ATTR, the function block would be instructed to write to an object. Other data objects within the JAGXTREME can be read from or written to by providing the appropriate Class, Instance, and Attribute to the EML_UCMM_REQ function block. For a complete listing of objects accessible via Ethernet/IP, reference the Mettler Toledo CIP Interface Technical Manual.

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