I can't use Inputs and Outputs at same time


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I am using DaqFactory with S7200 CPU224XP with PPI cable. I activated modbus on port0 of S7. I added inputs to channel list then used this channels in my project. However, when i added one output to channel list Daqfactory gave alert, "Modbus timeout". When i delete output channel there is no problem. I deleted all input channels and added outputs to channel list there is no problem. However, when i added one (or more) input again modbus timeouts. Of course i want to use inputs and outputs together in my project. How can i do?

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