14 - 15 14 - 15
MELSEC
14 TROUBLESHOOTING
14.4.1 Flowchart to use when RUN LED is unlit
NO (The "RUN" LED has been off since the power was turned on.)
YES
NO (The "RUN" LED turned off
while communicating)
Did the LED turn
off even when communication
with other station was being
performed?
Is communication with
other station continued?
Replace the MELSECNET/H board
since the MELSECNET/H board's
"RUN" LED is broken.
Is there
a WDT (288) error log
1
remaining?
Did the "RUN"
LED turn on after replacing the
MELSECNET/H
board?
Check PC hardware, etc.
Lengthen the driver WDT monitoring time
(Refer to Section 14.7.)
Complete
An error occurs.
YES
NO
YES
YES
NO
1: WDT error logs can be checked on the event viewer. (Refer to 14.3.2)
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: ......