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MELSEC-Q
4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION
4.5 Standalone Check of the Network Module (Offline Tests)
Before executing the data link operation, check the network module and the cables.
Conduct an offline test following the procedure below.
REMARKS
• The data link operation cannot be executed normally if one station is in the test
mode (Self-loopback test, Internal self-loopback test, and Hardware test) during
data linking (online).
• For the test in offline mode, conduct by only the network module.
Completed
Test start
Self-loopback test
Internal self-loopback test
Hardware test
Hardware of the network module is checked
including the transmission system send/receive
circuit and cables.(Refer to Section 4.5.1.)
Flow of offline tests
Hardware of the network module is checked
including the transmission system send/receive
circuit.(Refer to Section 4.5.2.)
Hardware inside the network module is checked.
(Refer to Section 4.5.3.)
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