Unit Status ( also called Device Status). Describes the OK, BAD and DISABLED status of the device referenced. Similar to %TUNITST, %DUNITST and DevSTS. %TUNITST uses words to describe state
Syntax: %AUNITST(comport device)
Security: READ ONLY
Arguments: none
Example: %AUNITST(1 1)
Hi Span: 4
Lo Span: 0
0: OK
1: BAD
2: DISABLED
3: No Device configured
DISABLE means halt communications to the device. A user or script must DISABLE the device. This can be done from the STATION STATUS Display or %DUNITST.
RED FLASHING 1 means that there is a communications failure to the device; the SCADA node will retry to establish communications if BAD.
0 means communications enabled and no critical errors.
See also %TUNITST, %DUNITST, DevSTS and %DCOMST.