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Communication between Siemens 200 PLC and DCS

2017-06-24View Original

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As shown in the figure below, there are two issues with the data transmission: the values for the ib109 and ib125Dcs channels do not match those specified in the configuration program. I’m not sure what the cause is. The remaining data and on-site comparisons are all fine. Is it related to whether the data type is unsigned? Please clarify.

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