Mitsubishi Electronics QJ72LP25-25 ユーザーズマニュアル
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MELSEC-Q
8 TROUBLESHOOTING
8.6 H/W Information
H/W information screen displays details of the LED and switch information of the
network modules. To display the H/W information screen, click the H/W information
network modules. To display the H/W information screen, click the H/W information
button on the system monitor window of GX Developer.
(1) H/W information on the master module
1)
1) -a
1) -b
2) -b
2) -a
The following explains each of these items.
1) H/W LED information
The following table lists the LED information on the master module.
The value for each item is displayed as: 0001 on, 0000 off.
The value for each item is displayed as: 0001 on, 0000 off.
Item Description
PC
PLC to PLC network: on
REMOTE
Remote I/O network: on
DUAL
In multiplex transmission: on
SW. E
Switch setting error: on
M/S. E.
Duplicate station number or remote master station on same network: on
PRM. E.
Parameter error: on
MNG
Remote master station set or multiplexed remote master station performing
master operation: on
master operation: on
S. MNG
Multiplexed remote master station performing master operation: on
D. LINK
In data link: on
T. PASS
Baton pass participation: on
CRC
Error during code check of receiving data: on
1)-a: Forward loop
1)-a: Forward loop
1)-b: Reverse loop
OVER
Error when receive data processing has been delayed: on
1)-a: Forward loop
1)-a: Forward loop
1)-b: Reverse loop
AB.IF.
Error when "1" over specification is continuously received or when the
received data length is short
1)-a: Forward loop
received data length is short
1)-a: Forward loop
1)-b: Reverse loop
TIME
Error when data link monitor timer has operated: on
1)-a: Forward loop
1)-a: Forward loop
1)-b: Reverse loop
DATA
Error when error data of 2k-byte or more has been received: on
1)-a: Forward loop
1)-a: Forward loop
1)-b: Reverse loop
UNDER
Error internal processing of send data is not fixed interval: on
1)-a: Forward loop
1)-a: Forward loop
1)-b: Reverse loop
LOOP
Error when there is loop error: on
1)-a: Forward loop
1)-a: Forward loop
1)-b: Reverse loop