Offline Tests From Gx Developer; Station-To-Station Test - Mitsubishi Electric Q Series Reference Manual

4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION

4.7 Offline Tests from GX Developer

4.7.1 Station-to-station test

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The offline tests check the cable connection status using the network parameters of
GX Developer.
In the station-to-station test, the hardware of the network modules and cables between
two adjacent stations can be checked.
The following explains how to conduct the station-to-station test:
(1) Connecting the cable
[Optical loop system]
Connect OUT and IN of two network modules with an optical fiber cable.
Station to
execute test
Station
No. n
IN
Side OUT
[Coaxial bus system]
Connect two network modules with a coaxial cable.
Station to
execute test
Station
No. n
Side
Terminal
resistor
REMARKS
Before conducting the station-to-station test when three or more stations are
connected by the coaxial bus system, any stations that are not tested should be
switched to offline or powered off.
Station to
execute test
Station to
be tested
Station
No. n+1
IN
Side OUT
Optical fiber cable
Station to
be tested
Station
No. n+1
Side
Coaxial cable
Terminal
resistor
Station to Offline or
be tested
powered off
MELSEC-Q
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