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MELSEC-Q
4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION
4.5.3 Hardware test
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.
(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.
IN
OUT
Optical loop system
Coaxial bus system
Connect IN
and OUT
Do not connect
anything
Do not connect
anything
Twisted bus system
MODE
3
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