Mitsubishi Electric MELSEC iQ-RX40NC6B Application User's Manual page 180

Setting procedure
Set the parameters for the output dark test function with "Application setting".
1.
With "Output dark test execution setting", set whether to conduct an output dark test on a per-point basis.
[Navigation window]  [Parameter]  [Module Information]  Model  [Module Parameter]  [Application setting] 
"Output dark test function"
2.
With "Output dark test pulse OFF time", set the width of an OFF pulse to be output by a test pulse output terminal on a
per-point basis.
3.
With "Number of pulses output for output dark test", set the number of OFF pulses during output dark test diagnostics on
a per-module basis.
• For output terminals with "Wiring output selection" set to "Not used", the settings for "Output dark test
execution setting" are ignored and test pulse output is disabled.
• Adjust the output dark test pulse OFF time and the number of output dark test pulse outputs according to
the installation environment and wiring length.
10 FUNCTIONS
178
10.5 Output Diagnostic Function