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CHAPTER 11 TROUBLESHOOTING
11
11.5 Unit Test
11.5 Unit Test
The purpose of a unit test is to check if there is any abnormality in the main A/D converter module.
When the unit test is completed with an error, the error details can be checked in the error history.
To check the error history, set the station number of the main A/D converter module and connect the module to the master
station with an Ethernet cable.
For the error history, refer to the following:
• Checking by executing a command of the slave station ( Page 168, Section 11.1 (1))
• Error history data ( Page 222, Appendix 3 (23))
1. Turn off the module power supply.
2. Connect the PORT1 and PORT2 connectors of the
main A/D converter module with an Ethernet cable.
3. Set up the station number setting switch as follows:
⋅ x10: TEST
⋅ x1: 0
4. Turn on the module power supply.
5. Unit test begins.
The MODE LED flashes during the unit test.
6. Upon the completion of the unit test, the MODE LED
turns off.
• When completed normally, the ERR. LED does not turn on,
remaining off.
• When completed with an error, the ERR. LED turns on. If
the unit test is completed with an error, replace the
Ethernet cable and run the test again. If completed with an
error again, the hardware failure in the main A/D converter
module is a possible cause. Please consult your local
Mitsubishi representative.
When completed successfully
When completed with an error
: Flashing
: ON
: Flashing
: ON
: OFF
: OFF
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