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90 • Fieldbus Controller 750-841Programming the PFC with WAGO-I/O-PRO CAAWAGO-I/O-SYSTEM 750ETHERNET TCP/IP3.1.8 Programming the PFC with WAGO-I/O-PRO CAAThe WAGO 750-841 Programmable Fieldbus Controller (PFC) combines thefunctionality of an ETHERNET fieldbus coupler with the functionality of aProgrammable Logic Controller (PLC). When the PFC is used as a PLC, allor some of its I/O modules can be control locally with the use of WAGO-I/O-PRO CAA. WAGO-I/O-PRO CAA is an IEC 61131-3 programming tool thatis used to program and configure the 750-841 PFC. I/O modules which arenot controlled locally (i.e., not controlled as a PLC), can be controlledremotely through the 10/100 Mbps ETHERNET Fieldbus port.NoteTo perform IEC 61131-3 programming in the 750-841 PFC, the WAGO-I/O-PRO port must be enabled. Enable and Disabling of this port is done with acheckbox in the “Port configuration” web page.The purpose of this section is not to provide a comprehensive lesson onWAGO-I/O-PRO CAA programming. Instead, it highlights importantprogramming and configuration notes of the IEC 61131-3 program when it isused with the 750-841 PFC.More informationFor a detailed description of how to use the software, please refer to theWAGO-I/O-PRO CAA manual. An electronic copy of this manual can befound on WAGO’s web site: www.wago.com1. To start the WAGO-I/O-PRO CAA, click the Start menu itemPrograms/CoDeSys for Automation Alliance/CoDeSys V2.3/ CoDeSysV2.3 .A dialog window will open. Select the target system for programming.2. Choose WAGO, 750-841, Ethernet 10/100Mbps controller from the pulldown list and click the OK button.3. You can now create a new project in WAGO-I/O-PRO CAA via its menuitem File/New. A dialog window will prompt you to select theprogramming language (i.e., IL, LD, FBD, SFC, etc.).4. To access I/O modules of your node, the module configuration must first bemapped in the file "EA-config.xml". This file defines which system mayhave write access to each particular I/O module (i.e., the IEC 61131-3program, MODBUS TCP Fieldbus, or Ethernet IP Fieldbus).This file can be generated, as described in the following, by theconfiguration with the WAGO I/O PRO CAA Configurator. |
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