Machine Expert exporting %QX signals to OPC UA symbols.

[dnordenberg1]

Hi!

Machine Expert is hiding these in the symbol configuration. I found the option for it in pure codesys Object: Symbol Configuration called direct I/O access and has to be allowed because it is potentially a risk. But I can not find this option in Machine Expert 😞

And my usage for it is not to access direct I/O anyway, it is that the internal modbus slave use %QX also for the modbus coils so higher %QX adresses not tied to I/O is instead used for reading digital %M/modbus coils from scada. That is why I want them exposed on OPC UA too.

I could access the bits by defining something like "bool_coils AT %QW10: ARRAY [1..16] OF WORD;" which strangely seemed allowed instead of using the disallowed %QX.bit addressing but with %QW I miss the symbolic part and only get the bits unnamed in the array.

Kind regards,

David