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Tia Portal V16.0, IM151-8 1SI Modbus Master Problem

11/8/2021 9:37 PM	Rate (0)
konsistek Regular Member Joined: 4/28/2018 Last visit: 5/12/2025 Posts: 8 Rating: (0)	Hello Dear Friends, We are using IM151-8 Cpu with 6ES7138-4DF11-0AB0 Modbus module. We searched all forum, we found some examples for modbus master but we couldn't succeed to receive any data's from slave devices. We tried com port sniffer program to check PLC's packets but there is no transmitted packets. Also we checked rx tx LED's but they are not blinking. Can you help us about this issue? Thank you.

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11/9/2021 12:39 AM	Rate (0)
LT_tron Advanced Member Joined: 6/28/2017 Last visit: 9/1/2025 Posts: 25 Rating: (2)	Hello, can you attach your project?

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11/9/2021 9:13 AM	Rate (0)
konsistek Regular Member Joined: 4/28/2018 Last visit: 5/12/2025 Posts: 8 Rating: (0)	Hello my friend, project is attached. Thank you for your interest Attachment PIRINCLI_HES_20211109_1109.zip (598 Downloads)

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