14 - 19 14 - 19
MELSEC
14 TROUBLESHOOTING
YES
YES
NO
NO
YES
NO
YES
NO
1)
2)
3)
Replace the MELSECNET/H board
network module of the faulty station
among the control station and first through
last stations.
Did the data link begin?
Perform self-loopback tests for the
control station and first through last
stations.
Is there any station with error?
Replace the MELSECNET/H board
network module of the faulty station.
Did the data link begin?
Check the loop line using a station-to-
station test.
Replace the faulty cable.
Did the data link begin?
Consult with the dealer regarding the
problem.
Complete
REMARK
For the Q80BD-J71LP21-25, Q81BD-J71LP21-25 or Q80BD-J71LP21S-25 with the
communication speed set to 25 Mbps, mounting multiple boards with the same
network No. is not allowed. Doing so may cause errors at all stations at the time of
OS startup/shutdown or when resetting the board. If multiple boards with the same
network No. should be installed, set the communication speed to 10Mbps.
Summary of Contents for Q80BD-J71BR11
Page 2: ......
Page 24: ...A 22 A 22 MEMO ...
Page 50: ...4 6 4 6 MELSEC 4 FUNCTION MEMO ...
Page 92: ...6 36 6 36 MELSEC 6 PROCEDURE AND SETTINGS UP TO THE POINT OF OPERATION MEMO ...
Page 132: ...10 2 10 2 MELSEC 10 MELSEC DATA LINK LIBRARY MEMO 10 ...
Page 138: ...11 6 11 6 MELSEC 11 PROGRAMMING MEMO ...
Page 164: ...12 26 12 26 MELSEC 12 APPLICATION FUNCTIONS MEMO ...
Page 166: ...13 2 13 2 MELSEC 13 ERROR CODE MEMO 13 ...
Page 223: ......