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6.11.3 External input/output forced on/off
The external input/output can forcibly be turned on/off on the screen opened by selecting [Online] [Debug]
[Forced input output registration/cancellation] in GX Developer.Note9
The information registered for forced on/off can be cancelled by an operation from GX Developer.
(1) Input/output operation when a forced on/off operation is performed
There are three kinds of forced on/off operations: forced on ("Set forced ON"), forced off ("Set forced OFF"), and
forced on/off cancellation ("Cancel it").
Table6.13 shows the CPU module operation when a forced on/off operation is performed.
*1: When the Redundant CPU modules in redundant systems are in backup mode, output (Y) of the standby system CPU
module cannot forcibly be turned on/off.
Note9
Figure 6.36 Forced input output registration/cancellation screen
Table6.13 Input/output operation when a forced on/off operation is performed
Operation Input (X) operation Output (Y) operation
Forced on/off
cancellation (no
operation)
The CPU module performs sequence program operations
using external inputs.
The CPU module outputs the results of sequence
program operations externally.
Forced on
The CPU module performs sequence program operations
using inputs forcibly turned on.
The CPU module outputs "on" externally regardless of
the results of sequence program operations.
Forced off
The CPU module performs sequence program operations
using inputs forcibly turned off.
The CPU module outputs "off" externally regardless of
the results of sequence program operations.
Note6.5
When performing an external input/output forced on/off operation for the Q02UCPU, Q03UDCPU, Q04UDHCPU,
Q06UDHCPU, Q13UDHCPU, or Q26UDHCPU, check the versions of the CPU module and GX Developer. (
Appendix 2.2)
Universal
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