Learn how to map Modbus Floating Point To Wonderware InTouch Tag.

There are lots of gotchas you have to be aware of when you are mapping a Modbus floating point register to an InTouch tag. These are some of the key points.

  • Modbus register offset by one
  • Scaling. Set the scaling in the InTouch tag to -32767 to 32767 if you do not want to scale.

Its a very short tutorial but will help answer some of the crucial point.