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5/22/2014 1:22 PM | |
Posts: 3093 Rating:
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Hello Mohamed, RS485 expansion module shows the pin assignment. You need to connect -A of PAC to R(A) of S7-1200 and +B to R(B). Terminating resistors are required at the end of the daisy chain. Regards, Kaulquappe |
5/24/2014 1:11 PM | |
Joined: 11/21/2007 Last visit: 7/7/2024 Posts: 2325 Rating:
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This will be useful for you for Modbus COmmunication using S7-1200 : How do you establish a MODBUS-RTU communication with STEP 7 (TIA Portal) for the SIMATIC S7-1200? Hope this helps Cheers Navnag |
There is no such thing as the last bug in a program |
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