Get Invalid System Enumeration error when polling an XDriver point

Issue

After configuring an XDriver point, clicking the refresh button on the editor results in an error "Invalid system enumeration" and no value response from the Slave device.

Product Line

Andover Continuum

Environment

  • BCX1
  • Cyberstation 1.9X
  • Modbus RTU

Cause

There is a register number shift (+1 or -1) some equipment uses. The registers listed in the manual do not actually exist.

Resolution

Add a register number shift (+1 or -1) to the register number listed in the manual.