ABB 800xA Operation page 226

Device Loop Templet
ABNORMAL OVERRIDE Field
This field specifies the action to take if an abnormal state change timeout occurs. If
a device changes state when no command was issued to the device, the abnormal
timer starts counting down from the amount of time specified in the ABNORMAL
TIMER field. If it reaches 0, the action specified in this field is applied to the device
command parameter (DEV_CMND).
Valid entries are:
NONE
STATE
SAFE COMMAND device command (DEV_CMND) is set to entry in the SAFE
NONE/NA
STATE/NA
SAFE/NA
PREVIOUS CMD
SPECIAL CMD
ABNORMAL TIMER Field
This field specifies the amount of time the abnormal timer is set to when an
abnormal state change occurs. See the description of the ABNORMAL OVERRIDE
226
This is often used when the device loop interacts with a programmable
controller over a PC interface. The entry NO COMMAND is used to insure the
device loop does not affect the programmable controller when the device loop
goes on-line.
no change to device command, but abnormal state change
alarm is generated
device command (DEV_CMND) is set to value of Device
State (DEV_STAT), abnormal state change alarm is
generated
COMMAND field, abnormal state change alarm is generated
no change, no abnormal state change alarm
set to value of Device State (DEV_STAT), no abnormal state
change alarm
set to entry in the SAFE COMMAND field, no abnormal
state change alarm
set to last successful previous command
device command (DEV_CMND) is set to entry in the
SPECIAL COMMAND field
Appendix A Runtime Templates
3BUR002418-600 A