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I have a v570 that is communicating with a Wonderware Intouch SCADA computer.

I want to be able to read/write MF tags to and from both devices.

When I write a value of 1.23  from SCADA, the v570 reads it back as 4.066596E+29.

This was tested using MF0 using value "416385 F" in Intouch.

Is there a way of displaying the MF value directly?

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Hello Martin

Im not a intouch expert but it sounds to me that the communication between the V570 and Intoch is established and only the data presentation is wrong?

The link leeds to a wonderware intoch manual  about modbus communication between a modicon plc and intoch. Take a look at page 37  where you have an option "Use data concept Structures (Reals). Perhaps this Will help you any further?



kind regards


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