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S7-1200 can communicate in Modbus ASCII?

Created by: rafaelbranco at: 12/20/2018 2:17 PM (2 Replies)

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12/20/2018 2:17 PM	Rate (0)
rafaelbranco Posts: 1 Rating: (0)	Hello guys. I am using an S7-1200 CPU (1211C AC/DC/RLY) with a CM 1241 (422/485 241-1CH32-0XB0). I need to make a Modbus communication via 485 with a leakproof test module, which has Modbus ASCII protocol. I did some simulations on my PC and only managed to communicate through the Modbus RTU with my PLC. With this hardware configuration, is it possible to communicate with Modbus ASCII? Thanks a lot!
rafaelbranco Posts: 1 Rating: (0)
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12/21/2018 1:44 PM	Rate (0)
Kaulquappe Posts: 3093 Rating: (323)	Hello; TIA does not include standard function blocks for Modbus ASCII communication. Regards, Kaulquappe
Kaulquappe Posts: 3093 Rating: (323)
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12/21/2018 11:17 PM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 11/19/2024 Posts: 1081 Rating: (214)	There are commercial gateway boxes that will convert Modbus RTU to Modbus ASCII.

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