Mitsubishi Electric MELSEC iQ-R Series User Manual page 237

Behavior in forced on/off registration
The following describes the behavior in forced on/off registration.
■Behavior of an input device
Registering forced on/off turns on or off the input device regardless of the status of the external input. When an input device
for which the forced on/off has been registered is changed in the program, the input device is turned on or off in accordance
with the operation result of the program.
Operation Change in the input device in
the program
Forced on Changed
registration
Not changed
Forced off Changed
registration
Not changed
*1 If the forced on/off is registered for a device set to perform link refresh, the device value may be updated at the timing of refresh. Thus,
a different value from the operation result may be displayed when the device value is monitored (performed in END processing).
■Behavior of an output device
Registering forced on/off turns on or off the external output regardless of the operation result of the program. When an output
device has been changed in the program, the output device is turned on or off in accordance with the operation result of the
program. Therefore, the on/off states between the output device and external output may differ.
Operation Change in the output device in
the program
Forced on Changed
registration
Not changed
Forced off Changed
registration
Not changed
*1 If the forced on/off is registered for a device set to perform link refresh, the device value may be updated at the timing of refresh. Thus,
a different value from the operation result may be displayed when the device value is monitored (performed in END processing).
Behavior of an input device
• The input device is on when the program operation at every scan starts.
• The input device is turned on or off in accordance with the operation result of the program
after the program operation at every scan started.
The on state is held.
• The input device is off when the program operation at every scan starts.
• The input device is turned on or off in accordance with the operation result of the program
after the program operation at every scan started.
The off state is held.
Behavior of outputs
Behavior of an output device
• The output device is on when the program
operation at every scan starts.
• The output device is turned on or off in
accordance with the operation result of the
program after the program operation at every
*1
scan started.
The on state is held.
• The output device is off when the program
operation at every scan starts.
• The output device is turned on or off in
accordance with the operation result of the
program after the program operation at every
*1
scan started.
The off state is held.
19.1 External Input/Output Forced On/Off Function
*1
*1
Behavior of an external output
The external output is turned on
regardless of the operation result of the
program.
The external output is turned off
regardless of the operation result of the
program.
19 TEST FUNCTION
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