1/1/2019 7:00 PM | |
Posts: 27 Rating: (0) |
Hi I have s7-1200 plc ,cm1241,and two abb dcs 800 drive. I have communicat at modbus rtu.communication has bee done successfully. My problem is such that , when I give the group start command to both drive at the same time with some reference. The drive does not start together.they are start at different time ,same case occur in stop case. I have make the program in Tia portal 14 sp 1. I have use siemins standard mb communication load and master db with 19200 baud rate,parity none, stop bit 1, data bit 8 in the program Pls help me ------------------------------------------------------------------------------------------ |
Last edited by: Macgra at: 1/1/2019 7:05:10 PMLast edited by: Macgra at: 1/1/2019 7:06:24 PMLast edited by: CS Moderator at: 1/2/2019 1:30:41 PMNew subject after splitting |
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1/2/2019 2:03 PM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054)
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hi Macgra, maybe this application sample helps you: How do you establish a MODBUS-RTU communication with STEP 7 (TIA Portal) for the SIMATIC S7-1200? hope this helps, regards, |
FCK WAR! |
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