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| 2/4/2010 6:03 AM | |
Joined: 2/6/2009 Last visit: 3/10/2023 Posts: 932 Rating:
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Hi, Iam able to communicate with a modbus slave in S7-200 PLC. I want to know the data format of the Modbus communication in S7-200. The exact problem is, When I am reading 20 registers from the Modbus slave (as per the slave manual) I am getting the data's at the correctreceivelocation, But if I am changing no. ofqueries the data is not coming in the same location. Please helpme to find out the modbus data structure format of S7-200.I have communicated the same meter in S7-300 by using CP-341 and it was fine with any no. of queries.Please fin the attachment for the Meter manual. I want to know how to make Modbus program for AttachmentEM6400 writeup.pdf (51 Downloads) |
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| 2/4/2010 11:32 AM | |
Joined: 4/24/2009 Last visit: 2/23/2023 Posts: 2685 Rating:
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Thread closed, because question is already published in the thread with the subject I want to know how to make Modbus program for more then one query in S7-200 plc's. . Best regards O_Moderator |
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