Data Transfer Sequence Error [M8138 To M8190] [M504 To M511; Data Transfer Sequence On [M8191] [M503; Serial Communication Error Code [D8063 And D8438 - Mitsubishi FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
N:N Network

10.2.4 Data transfer sequence error [M8138 to M8190] [M504 to M511]

These devices turn ON when a data transfer sequence error occurs in the master station or a slave station.
1. Stations requiring program setting
Setting is required for the master station and slave stations.
However, setting for the station itself is not required.
2. Detailed contents
A used device varies depending on the FX Series.
FX Series
FX , FX , FX
1N 2N 3U
FX , FX , FX
1NC 2NC
FX , FX
0N 1S
3. Cautions on use
Data transfer sequence errors in a station itself cannot be detected.
Do not set these devices to ON using a program or programming tool.

10.2.5 Data transfer sequence ON [M8191] [M503]

This device remains ON while data transfer is being from or to in the master station or slave station.
1. Stations requiring program setting
Setting is required for the master station and slave stations.
2. Detailed contents
The device used varies depending on the FX Series.
FX Series
FX , FX , FX
1N 2N 3U
FX , FX , FX
1NC 2NC
FX , FX
0N 1S
3. Cautions on use
Do not set this device to ON using a program or programming tool.

10.2.6 Serial communication error code [D8063 and D8438]

These devices store the serial communication error code (in the FX
1. Stations requiring program setting
Setting is required for the master station and slave stations to check the error code.
2. Detailed contents
The error code of the serial communication error that occurred in ch 1 is stored in D8063.
If an error is included in the parameters used for the N:N Network, "6308" is stored.
The error code of the serial communication error that occurred in ch 2 is stored in D8438.
If an error is included in the parameters used for the N:N Network, "3808" is stored.
3. Cautions on use
Serial communication errors are not cleared even after communication has recovered its normal status. To
clear them, switch the PLC mode from STOP to RUN.
Slave
Master
station
station
No. 1
,
M8183 M8184
3UC
M504 M505
Data transfer sequence ON
,
M8191
3UC
M503
Slave Slave Slave
station station station
No. 2 No. 3 No. 4
M8185 M8186 M8187
M506 M507 M508
and FX
3U
10 Related Data
10.2 Details of Related Devices
Slave Slave Slave
station station station
No. 5 No. 6 No. 7
M8188 M8189 M8190
M509 M510 M511
).
3UC
B-53
A
B
C
D
E
F
G
H
I
Apx.