Hardware Test - Mitsubishi Electric Melsec QJ71LP21 Reference Manual

4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION

4.5.3 Hardware test

Optical loop system
IN
OUT
3
MODE
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This test checks the hardware inside the network module.
(1) System configurations
(a) Optical loop system
Connect IN and OUT terminals of the network module with an optical fiber
cable.
(b) Coaxial bus system
Do not connect a cable and connector to the network module.
(c) Twisted bus system
Do not connect a cable and connector to the network module.
Coaxial bus system
Connect IN
and OUT
(2) Test mode settings
(a) Optical loop system
Set the mode setting switch of the network module to "3" and "7" for
10Mbps and 25Mbps respectively.
(b) Coaxial bus system
Set the mode setting switch of the network module to "3".
(c) Twisted bus system
Set the station number/mode setting switches of " 10" and " 1" to "TEST"
and "9" respectively.
Twisted bus system
Do not connect
anything
MELSEC-Q
Do not connect
anything
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