2/16/2022 5:57 PM | |
Joined: 5/3/2021 Last visit: 9/15/2022 Posts: 8 Rating: (0) |
Hi dear SIMATIC experts! I'm a complete newbie in S7, but due to Covid hitting a colleague, I am to replace a Modbus TCP server with Modbus RTU. CM PtP RS422/485 HF is used as a communication module, FW ver. 1.0; 2 wire Half duplex; with Freeport/Modbus protocol; In the project I managed to put together Modbus_Comm_Load called from Startup [OB100] and returns without an error; The advice from the online Information System "Check the input at the PORT parameter and ensure that the module can be reached." is of little help as I can't figure out how to ensure the module can be reached. Any help will be appreciated and Thnx in advance! AttachmentModbusRTUSlaveProblem.pdf (293 Downloads) |
Last edited by: #EMO# at: 02/16/2022 17:59:12Last edited by: #EMO# at: 02/16/2022 18:00:40Last edited by: Jen_Moderator at: 02/17/2022 09:11:46Optimized link. |
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