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Modbus RTU CP341 - connect 11 slaves in multidrop connections
Created by: erfrabal at: 3/1/2013 5:23 PM (2 Replies)
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| 3/1/2013 5:47 PM | |
Joined: 9/27/2006 Last visit: 11/11/2024 Posts: 12293 Rating:
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Hello erfrabal; It is possible to cnnect with multiple slaves over Modbus RTU, even more than once with the same slave reading or writingdifferent data areas. Follow the example set in DR75's example program found in this discussion: https://www.automation.siemens.com/tf/WW/en/Posts/16268 Simply prepare a different Send_DB for each slave connection you need, stating the specific Modbus address of the slave and details of the data you want to reach, and call the Modbus functions once for each connection, with the different Send_DB.. Hope this helps, Daniel Chartier |
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