ABB 800xA Operation page 238

PID Controller FCM
CHANGE OUTPUT ON FAIL Field
This field specifies if a new output value is supplied upon a remote link failure.
Valid entries are:
LINK TIME-OUT Field
This field specifies the initial time interval for the watchdog timer. The timer is used
to determine whether a supervisory program can continue to control the loop. Valid
entry is a number of seconds
BALANCE MODE Field
This field indicates whether the system can manipulate the remote setpoint ratio
and/or the remote setpoint bias to prevent process bumps when the setpoint state is
switched to remote. Valid entries are:
BIAS MODE Field
This field specifies which remote setpoint bias value the FCM is presently using.
The configured entry is the initial bias mode. During runtime, this field changes
each time the mode is switched at the console. Valid entries are:
238
NO do not change the output value
YES change the output value
RATIO FCM automatically manipulates ratio value of remote setpoint to
balance transitions to Remote
BIAS controller automatically manipulates bias value of remote setpoint
to balance transitions to Remote
BOTH the system can manipulate both bias and ratio
OFF the balance feature is not used
REM bias comes from the remote bias source
LOC bias is from the local source (entered by operator at console)
OFF controller does not use a bias signal
Appendix A Runtime Templates
3BUR002418-600 A