Mitsubishi Electric Q80BD-J71BR11, User Manual

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MELSEC
6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION
6.5 Test
Before executing the data link operation, check the MELSECNET/H board and the
cables.
Select a test item using the mode setting switch on the "Board information" screen in
the MNETH Utility.
The MELSECNET/H board test has the following five types.
Item Test type Description Reference
Self-loopback test
This test checks the hardware of the internal circuits,
including the send/receive circuit of the MELSECNET/H
board, as well as the cables. Section 6.5.1
Internal self-loopback test
This test checks the hardware of the internal circuits,
including the send/receive circuit of the MELSECNET/H
board. Section 6.5.2
Board
confirmation
Hardware test
This test checks the hardware inside the MELSECNET/H
board. Section 6.5.3
Test between master station
Test between slave station
This test checks the hardware of the MELSECNET/H
board, network modules and cables between two adjacent
stations can be checked. Section 6.5.4 Network
confirmation
Forward loop test
Reverse loop test
This test checks the Q80BD-J71LP21-25, Q81BD-
J71LP21-25, Q80BD-J71LP21S-25, Q80BD-J71LP21G,
Q80BD-J71LP21GE network module and cable hardware
after all the stations have been connected with optical fiber
cable, and can also check if the IN and OUT cables have
been connected correctly. Section 6.5.5
REMARK
The test modes are equivalent to offline. The data link cannot be executed if one
station is set to the test mode during data link. Set the mode to "Online (auto.
reconnection)" when performing data link.