Vigilantplant Daqstation DX3004, User Manual

Page: 12 / 17

10
IM 04L75B01-01EN
Simulation Function
Display Freeze Function
■ Specifications
• A function used to stop the updating of the time, trend,
digital values, and bar graph.
• The display freeze function is controlled through the
event action function or communication commands.
• Alarm summary, message summary, and various log
displays are also not updated if they are displayed.
• While the display is frozen, display data is also not
updated.
• Key operation is possible while the display is frozen.
Display operations such as switching the display group
are possible.
• When recovering from the display freeze condition to
normal operation, the trend display is resumed from
where it left off.
“Close” to “Open”
Screen image of the operation
• The time display can be enabled or disabled in the
basic setting mode.
For details, see the “■ Enabling/Disabling the Time
Display” on page 10.
■ Event Action Function
• You can freeze or activate the display using the event
action function.
The “Display Freeze/Activate” action can be specified
only when the event is set to “Remote.”
• The “Display Freeze/Activate” action operates as a
level action.
• The display freeze action is executed when an
open-to-close event (rising edge) is detected.
• The display activate action (normal operation) is
executed when a close-to-open event (falling edge)
is detected.
Normal operation Display freeze Normal operation
Close
Open
• Event action functions that do not operate while the
display is frozen
See Table 3.
If a level action such as Memory start/stop is executed
due to a level event such as remote while the display is
frozen, the DX operation may become mismatched with
the event state.
Example)
If Memory start/stop using remote is specified and the
remote control input is switched from closed to open
while the display is frozen, the memory stop operation
is not executed. If display freeze is released in this
condition, the remote control input terminal will be open
even though the memory is in a start condition.
Action Note
Memory start/stop Does not operate while the display is
frozen. Operates after the display freeze is
released.
Memory start Does not operate while the display is
frozen. Operates after the display freeze is
released.
Memory stop Does not operate while the display is
frozen. Operates after the display freeze is
released.
Event trigger Does not operate while the display is
frozen. Operates after the display freeze is
released.
However, the action does not operate if the
event is set to timer or match timer.
Save display data Does not operate while the display is
frozen. Does not operate even after the
display freeze is released.
Save event data Does not operate while the display is
frozen. Does not operate even after the
display freeze is released.
Manual sample Does not operate while the display is
frozen. Does not operate even after the
display freeze is released.
Table 3 Event Action Functions That Do Not Operate While
the Display Is Frozen
■ Setting the Display Freeze Function
1.
Press MENU (switch to the setting mode).
2.
Select Timer , Event action
>
Event action
.
3.
Set the Logic box number , Event (set to Remote),
and Remote number
.
4.
In the Action box, press the Freeze soft key.
Setup Screen Example for the Display Freeze Function
■ Operation While the Display is frozen
• If the DX is in a state in which it can switch to the basic
setting mode, the DX can switch to the mode even
while the display is frozen.
The display freeze function is released when switching
back to the operation screen from the basic setting mode.
• If the power turns OFF and then back ON such as due
to a power failure while the display is frozen (closed
state) through remote control, the display freeze
function is released even if there is no change in the
remote state (remains at the closed state).
• The automatic display revert function does not operate.
The automatic revert timer is restarted when the
display freeze function is released.