Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 6)

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IM 04L31A01-02E
Preset Output
This function sets the control output to the preset value when the operation is stopped.
SP Ramp-Down-Rate/SP Ramp-Up-Rate
This function is used to decrease or increase the setpoint at a constant rate of change
(as opposed to a rapid change) when the SP is changed.
Target Setpoint Limit
This function is used to limit the range of values that the SP can change.
Tracking Function
You can set the following two tracking functions to suppress a radical change in the
output.
SP tracking: When switching from remote to local operation mode, the output is tracked
to the remote SP immediately before the SP switching.
PV tracking: The SP is matched to the PV at that point and then returned to the original
value according to the target setpoint ramp-up rate or the target setpoint
ramp-down rate.
Control Alarm Function
You can set up to four alarms for each loop. The following alarm types can be specified.
PV upper-limit alarm, PV lower-limit alarm, deviation high limit alarm, deviation low limit
alarm, deviation high/low limit alarm, deviation high and low limits alarm, SP high limit
alarm, SP low limit alarm, output high limit alarm, and output low limit alarm.
Introduction to Control Functions