Yokogawa Data Acquisition with PID Control CX2000 User Manual
Page 246
6-21
IM 04L31A01-01E
Operations during Control Operation
6
Behavior of the Cursor Indicating the Program Execution Position
• Before program control is started, the cursor is at the left end of the waveform display
section.
• After program control is started, the cursor moves to the right and indicates the
program execution position.
PV waveforms are not displayed until you press the START key to start the data
acquisition to the internal memory.
• After the cursor moves near the center of the waveform display section, the cursor
display position stops and the waveforms move. This is to display both the past and
future sections of the waveforms.
• When the pattern end is neared, the cursor moves to the right.
• When the pattern ends, the cursor is at the right end of the waveform display section.
Display When in Hold/Wait Operation and When Released
• When program control is in hold or in wait status, segment time stops and the preset
pattern waveform no longer moves. However, PVs continue to be updated.
• When program control hold or wait is released, waveforms are redrawn for the past
section based on the PVs and SPs. For the future section, waveforms are redrawn
based on the pattern settings. If the pattern is changed while program operation is
held, the corresponding preset pattern is redrawn.
Event Display (Style Number S3 or Later)
• The screen splits into the program selection and program operation displays, and
displays events. You can select an event display method from the following.
GROUP:
The 5 events and event names specified for the group are displayed.
TIME EV:
All time events and representative event names are displayed.
PV EVENT: All PV events and representative event names are displayed.
ALL:
All events are displayed
• In the program operation display, time events scheduled from the current time are
displayed.
• In the program operation display, the indicators that show whether events are ON or
OFF are displayed.
ON:
Displays in red
OFF:
Displays in green
• When displaying events, waveform division display is unavailable.
• Shows upper and lower limit scale values only when events are displayed
Display during Advance
When the [ADVANCE] soft key is pressed, the remaining segment time is cleared, and
the program moves to the beginning of the next segment. Accordingly, the future section
of the displayed preset pattern is shifted by an amount of the lost remaining segment time.
Advance
Shift left
Remaining segment
time that is lost due
to advancing
Executing Multiple Program Patterns
You can run a program pattern when another program pattern is running. Patterns
having overlapping loops may not be run simultaneously.
6.4
Operations on the Program Selection Display and Program Control Display (Only on Models with the
Program Control Option)