Yokogawa Data Acquisition with PID Control CX2000 - Manual (Page 9)

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IM 04L31A01-02E
Control Operation Display
In operation mode, the following control operation displays can be selected.
•
Control group display
This display is used to monitor the control status of multiple loops simultaneously
including external loops. You can select from three display styles as shown in the
display example in the figure below. If you include the measurement channels for the
measurement function in the group, you can also monitor the measured values on
the measurement channels at the same time on this display.
• Tuning display
This display is used to optimize (tune) the control parameters such as PID constants.
• Overview display
This display is used to monitor the alarm status of all control loops.
• DI/DO status display
Displays the ON/OFF status of the current contact input (DI) and contact output (DO).
• Control action summary display
Displays a log of control actions such as operation run/stop and auto/manual
operation switching.
• Internal switch status display
Displays the ON/OFF status of the internal switch.
On models with the program control function option, the following additional displays are
available: 1) the program operation status display, which can show the pattern and
current PV accumulated on the screen during program operation and 2) the program
event summary display, which shows a log of time events and PV events that occurred
during program operation.
Displays common with the measurement function include: 1) the alarm summary display,
which shows a log of alarm occurrence status and 2) the memory summary display,
which shows the file information of the internal memory.
In addition, on the trend display of the control function, the PV, SP, OUT can be assigned to
virtual channels (control channels), and the trend of control status can be displayed like the trend
waveforms of measurement channels on the trend display of the measurement function.
• Control group display
Faceplate style Hybrid style Controller style
• Tuning display • Overview display
• Control operation summary display • Internal switch status display
Display Examples
• DI/DO status display
• Trend display
Overview of Operations