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CHAPTER 6 INSTALLATION AND WIRING
6
6.2 Tests Before Wiring
6.2.2 Self-loopback test
Remark
The test status and result can be checked through monitoring the link special relays on GX Developer.
6. Self-loopback test begins.
The MODE LED of master/local modules flashes,
and each of the ×10 LED repeatedly turns on and off
(1 2 4 8 1 • • •).
Also, the SD LED, RD LED, and LINK LED turn on.
7. D LINK LED turns on, and SD LED and RD LED
turn off when the test is completed.
• When completed
The ×10 LED turns off.
• When failed
Any one of the ×10 LEDs turns on, and the ERR. LED
turns on. If the test fails, replace the Ethernet cable and
execute the test again. If the test fails again, 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
• Self-loopback test completion status (SB0092): ON
• Self-loopback test normal/abnormal end (SB0093): OFF
When failed
• Self-loopback test completion status (SB0092): ON
• Self-loopback test normal/abnormal end (SB0093): ON
RUN
SD
ERR.
LINK
P1
L ER
MST
D LINK
RD
L ERR.
1
2
4
8
MODE
S
T
N
O
.
.
1
2
4
8
1
LINK
P2
L ER
100
10
1
: ON
: Flashing
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