Adding a Ground Unit

A ground unit, which does not appear in the Unit Table of the hardware configuration, can be added to a setup. The ground unit is non-programmable and is available so that ground connections can be specified in a setup to reflect actual physical connections to ground.

The ground unit name is case insensitive and can be entered as GND, GNDU, or GROUND in the Unit field of the Input and Output tables. Do not assign these reserved names to any of the units in the Unit Table. For example, entering the name GROUND into a Unit Name field in the Unit Table causes a warning message to appear:

 WARNING: `GROUND' is a reserved Unit Name