Mitsubishi Electric MELSEC-L Series - Appendix 6.2 Hardware Test (H;W Test)

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APPENDICES
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Appendix 6 Self-Diagnostic Tests Appendix 6.2 Hardware test (H/W Test)
Appendix 6.2 Hardware test (H/W Test)
The RAM and ROM of an E71 are checked.
(1) Operating procedure
Use the following procedure.
If an error is detected in the hardware test (H/W test), the following cause is possible. The error information is
stored in Error log area (address: E5
H
) in the buffer memory.
• E71 RAM/ROM error
If the test fails, perform it again. If it fails again, there may be a hardware problem with the E71. Please consult your local
Mitsubishi representative.
1. Set the switch on the CPU module to "STOP".
2. Select "H/W Test" under "Mode" and write the
parameter to the CPU module.
Project window [Parameter] [Network
Parameter] [Ethernet/CC IE Field] Select
"Ethernet" under "Network Type".
3. Resetting the CPU module starts the test. Test time
is approximately five seconds. The RUN and OPEN
LEDs turn on during the test.
4. Check the LED of the E71 after five seconds. When
the test is running normally, the RUN LED turns on.
If the test fails, the RUN and ERR. LEDs turn on.