I'm glad it works for you

For the "variable decimal point" I would use blocks MUL and CNDR. CNDR configure so it reflects the changing of the gain according to the value.

You will probably find many other solutions which will lead you to the desired behaviour (e.g. SSW for switching gain according to the value)

Hope it helps.

Cheers,
Tomas

That works perfectly, thank you.

The next thing to solve! The display on the device I am reading does not use a decimal point below -9.9. So I get the same values from the register. -9.9 and above I can add again to get the decimal, -99 plus gain is -9.9. But -10 and below I can't use gain as -10 becomes -1.0. Is there a clean way in REXYGEN to handle this?

Cheers,
Mike

in REXYGEN 3 we have introduced "Register String" in Modbus driver.

Register string: text variable (Count is the number of bytes occupied by text in this case)

Did you try out this option? Instead of the "Swap word" flag try to set the "Swap byte" flag since every character is represented by a byte.

Let me know if it helped.

Cheers,
Tomas