WAGO I/O SYSTEM 750 XTR Table of Contents 11
750-8206/040-001 PFC200 2ETH RS CAN DPS
Manual
Version 1.2.0, valid from FW Version 03.02.02(14)
8.9.5.1 Effect of Update Mode on CODESYS Tasks .............................. 292
8.9.5.1.1 Asynchronous Update Mode .................................................. 292
8.9.5.1.2 Synchronous Update Mode ................................................... 293
8.10 Memory Settings in CODESYS ............................................................ 293
8.10.1 Program Memory............................................................................. 294
8.10.2 Data Memory and Function Block Limitation ................................... 295
8.10.3 Remanent Memory .......................................................................... 296
8.11 CODESYS Visualization ...................................................................... 296
8.11.1 Limits of CODESYS Visualization ................................................... 299
8.11.2 Eliminating Errors in CODESYS Web Visualization ........................ 301
8.11.3 FAQs about CODESYS Web Visualization ..................................... 302
9 Modbus – CODESYS 2 ........................................................................... 304
9.1 General ................................................................................................ 304
9.2 Features ............................................................................................... 304
9.3 Configuration........................................................................................ 305
9.3.1 Modbus Settings.............................................................................. 306
9.3.2 Modbus TCP Settings ..................................................................... 307
9.3.3 Modbus UDP Settings ..................................................................... 307
9.3.4 Modbus RTU Settings ..................................................................... 308
9.4 Data Exchange .................................................................................... 310
9.4.1 Process Image ................................................................................ 311
9.4.2 Flag Area ......................................................................................... 312
9.4.3 Modbus Registers ........................................................................... 313
9.4.4 Modbus Mapping ............................................................................. 313
9.4.4.1 Modbus Mapping for Write Bit Services FC1, FC2 ..................... 313
9.4.4.2 Modbus Mapping for Write Bit Services FC5, FC15 ................... 314
9.4.4.3 Modbus Mapping for Read Register Services FC3, FC4,
FC23 ........................................................................................... 315
9.4.4.4 Modbus Mapping for Write Register Services FC6, FC16,
FC22, FC23 ................................................................................ 317
9.5 WAGO Modbus Registers .................................................................... 319
9.5.1 Process Image Properties ............................................................... 320
9.5.1.1 Register 0x1022 – Number of Registers in the Modbus Input
Process Image ............................................................................ 320
9.5.1.2 Register 0x1023 – Number of Registers in the Modbus Output
Process Image ............................................................................ 320
9.5.1.3 Register 0x1024 – Number of Bits in the Modbus Input
Process Image ............................................................................ 320
9.5.1.4 Register 0x1025 – Number of Bits in the Modbus Output
Process Image ............................................................................ 320
9.5.2 Network Configuration ..................................................................... 321
9.5.2.1 Register 0x1028 – IP Configuration ............................................ 321
9.5.2.2 Register 0x102A – Number of Established TCP Connections.... 321
9.5.2.3 Register 0x1030 – Modbus TCP Socket Timeout ....................... 321
9.5.2.4 Register 0x1031 – MAC Address for ETHERNET-Interface 1
(eth0) .......................................................................................... 321
9.5.2.5 Register 0x1037 - Modbus TCP Response Delay ...................... 321
9.5.3 PLC Status Register ........................................................................ 322
9.5.4 Modbus Watchdog .......................................................................... 322