Hardware Test - Mitsubishi Electric MELSEC Q Series User Manual

4 SET-UP AND PROCEDURE BEFORE OPERATION

4.8.3 Hardware test

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Conduct a test related to the ROM/RAM/switch setting of the Web server module.
(1) Operation mode setting for Web server module
(a) In "Switch setting for I/O and intelligent function module" of GX Developer,
set the mode to "Hardware test". (Switch 1: 0001
(b) Write the PLC parameters to the programmable controller CPU.
(2) Execution of hardware test
(a) Set the programmable controller CPU to a STOP status.
(b) Reset the programmable controller CPU.
(c) After the programmable controller CPU is reset, the following hardware test
is executed automatically.
During the test, the ERR. LED flickers.
1) ROM check
This test reads the ROM data and conducts sum check.
2) RAM check
This test reads the test data written to the RAM and checks the
consistency.
3) Switch setting check
This test checks whether the switch settings are within the allowable
ranges or not.
However, "Mode setting" test of Switch 1 is not included.
(3) Confirmation of hardware test result
(a) Check the hardware test result according to the ERR. LED status.
ERR. LED status
Off
On
(b) When the test is completed, set the mode to "Online" in "Switch setting for
I/O and intelligent function module" of GX Developer, and reset the
programmable controller CPU. (Switch 1: 0000
(c) If the test failed, check that the switch settings are set correctly and conduct
the hardware test again.
If an error occurs again, a possible cause is the hardware fault of the Web
server module.
Please consult your local Mitsubishi representative.
Hardware
Completed
Failed
MELSEC-Q
)
H
test result
)
H
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