8 CPU Unit Functions
8-32
NJ-series CPU Unit Software User’s Manual (W501)
Outputs
• To turn outputs ON and OFF to check wiring
• To intentionally turn OFF an output you do not want to operate regardless of results of user program
execution
Operations can be performed from the following panes.
• Program Panes (Ladder diagram language)
• I/O Map
• Watch Tab Page
Procedure for Forced Refreshing from Ladder Editor
1
Select Monitor from the Controller Menu. The monitor turns ON.
2
Double-click the ladder program, ladder function, or ladder function block under Programming
in the Multiview Explorer.
The rungs are displayed on the Ladder Editor in monitor status.
3
Right-click the input or output and select Forced Refreshing
TRUE. The input or output is
forced to TRUE. Right-click the input or output and select Forced Refreshing
FALSE. The
input or output is forced to FALSE.
4
The input or output in the Ladder Editor changes to TRUE or FALSE and the execution condition
changes accordingly.
A mark that indicates that the input or output has forced status is displayed as shown below.
The TRUE or FALSE mark for forced status indicates the status that was specified for forced
refreshing. It does not indicate the current value of the input or output.
If there are other variables that are assigned the same memory address as one that is specified
as the AT specification of a variable for which forced refreshing is specified, the forced status
mark is displayed for all of the variables with that AT specification.
Operating Modes for Forced Refreshing
You can execute forced refreshing in either PROGRAM mode or RUN mode. Forced refreshing is
not possible while there is a major fault level Controller error.
Operating Procedure
Ladder diagram
Forced status mark Operation
TRUE specified with forced refreshing
FALSE specified with forced refreshing
Affect of Operating Modes and Power Interruptions
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