Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 196)

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M-4659
PID/Alarm
• Alarm
Specify an alarm for each loop.
Type
Select the type of alarm from the following:
[PV-High], [PV-Low], [Deviation-High], [Deviation-Low], [Deviation-H&L], [Dev-within-
H&L], [SP-High], [SP-Low], [Output-High], and [Output-Low].
Standby
Turn standby ON or OFF.
For details about the alarms that can be turned on or off, refer to the CX User’s
Manual (IM 04L31A01-01E or IM 04L31A01-03E).
Relay
Select the type of relay
DO001 to DO006: Loop2
DO101 to DO106: Loop4 (CX2000 only)
DO201 to DO206: Loop6 (with 4/6 loop selection, selection is only possible for a
CX2000 set to 6 loops.)
RO001-RO012: Control extension DIO (only a CX2000 with the control extension
DIO)
SW001-SW036: internal switches (SW001–SW018 for the CX1000, Style 3 or later)
Hysteresis
Specify the alarm hysteresis in EUS (0.0 to 10.0%).
• PID Parameters
Specify the PID parameters for each loop.
Target setpoint
Specify the target setpoint in EU (0.0 to 100.0%).
Set between the target setpoint’s upper and lower limits.
Alarm value (1 to 4)
Set the alarm value. (The setting depends on the type of alarm.)
PV and SP alarms: EU (0 to 100%)
Deviation-High and Deviation-Low alarms: EUS (-100 to 100%) of the measurement
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Other deviation alarms: EUS (0 to 100%) of the measurement
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Output alarms: -5.0 to 105.0% of the output value
7.4 Control Function General Settings