IO Channel number out of range when creating a door on AC1/AC1A/AC1Plus

Issue

Got error 'IO Channel number out of range when creating a door on AC1/AC1A/AC1Plus' on the IO module using IOU number 17

Same exact door configured on module with IOU number 16 or less saves OK

Product Line

Andover Continuum

Environment

CyberStation

NC1

NC2

AC1

AC1A

AC1Plus

Cause

The IO module is configured with an IOU number that is above the MAX IOU modules supported by the NetController.

Note that the above is true even if there is only ONE module configured.

Resolution

Delete the IOU module and recreate it using an IOU number at or below the max IOU number supported by the Net Controller.