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connect two plc s7 200 cpu 224

Created by: dinhcukt at: 5/29/2013 1:57 AM (2 Replies)

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5/29/2013 1:57 AM	Rate (0)
dinhcukt Posts: 1 Rating: (0)	Please help me!! I have two plc s7 200 cpu 224, I connect them via modbus protocol. The my subject below: When I enable I0.0 of PLC 1, The lamp Q0.0 of PLC 2 will be enable. I try my best but not succeed. Please show me source of program, thank !!!
dinhcukt Posts: 1 Rating: (0)
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5/29/2013 8:04 AM	Rate (0)
Marcjan Platinum Expert Joined: 4/22/2010 Last visit: 10/17/2024 Posts: 5697 Rating: (715)	Hello, A few things to read: you can check the Manual chapter 7 and have a look at S7 200 programming tips And: How do you implement MODBUS communication with S7-200? Regards, Marcjan
	Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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5/29/2013 1:40 PM	Rate (0)
ashishm Bronze Member Joined: 2/1/2011 Last visit: 9/13/2023 Posts: 186 Rating: (4)	Hello, If I am not wrong that we can also use Network Read (NETR) and Network Write (NETW) instructions for data transfer between PLC .

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