Siemens S7 1200 Modbus Communication

wolverine1981

Member
Join Date
Oct 2009
Location
Chicago, Illinois
Posts
194
Hello

In attempt to further my education I am attempting to communicate with several slaves reading and writing. I can communicate but there is some lag time between writing and reading back the write. With each read I Set the request then reset when complete or error. When I attempt this with the writes communication stops. I checked out the link below which is an example from Siemens. I was wondering if in network 3 of the attachment if this would resolve my problem.


Siemens Modbus.jpg


https://support.automation.siemens....lib.csinfo&lang=en&objid=47756141&caller=view


Have A Nice Day
Tom
 
Hello

Forgot to mention I am using S7 1200 Basic v10.5 Firmware 1.01.
Would of posted program but even zipped still to big (even a couple of rungs).

Have A Good Day
Tom
 

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