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CHAPTER 6 INSTALLATION AND WIRING
6
6.2 Tests Before Wiring
6.2.1 Hardware test
Remark
The test status and result can be checked through monitoring the link special relays on GX Developer.
(2) Precautions
(a) Settings
Do not enter values for "Network Configuration Setting" and "Refresh parameters". When link refresh is
executed during a hardware test, the test may fail.
(b) Operations
Do not access the buffer memory through the program during the hardware test. Doing so may cause the test
to fail.
6. D LINK LED turns on when the test is completed.
• When completed
The ×1 LED turns off.
• When failed
Any one of the ×1 LEDs turns on, and the ERR. LED turns
on.
When the test fails, the possible cause is hardware failure
of the master/local modules. Please consult your local
Mitsubishi service center or representative with the
detailed problem description.
Item Description
When completed
• Hardware test completion status (SB0090): ON
• Hardware test normal/abnormal end (SB0091): OFF
When failed
• Hardware test completion status (SB0090): ON
• Hardware test normal/abnormal end (SB0091): ON
RUN
SD
ERR.
MST
D LINK
RD
L ERR.
1
2
4
8
MODE
S
T
N
O
.
.
1
2
4
8
1
RUN
SD
ERR.
MST
D LINK
RD
L ERR.
1
2
4
8
MODE
S
T
N
O
.
.
1
2
4
8
1
100
10
1
100
10
1
: ON
When completed
: Flashing
: ON
When failed
: Flashing