1/31/2006 4:15 PM | |
Joined: 9/23/2005 Last visit: 8/27/2024 Posts: 4347 Rating:
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Hi, A good documentation sources are the Modbus Master Manual and the CP341 Manual. Links: http://support.automation.siemens.com/WW/view/en/1117397 Look if you do not send a Len = 0 or if the sent DB has no error in his the Header. |
Denilson Pegaia |
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