Mitsubishi Electric MELSEC Q Series User Manual page 34

(2) Faulty station information (buffer memory address: 4 to 7 (Un\G4 to 7))
The data link status of remote stations is stored.
Address
(decimal)
(3) Remote I/O error information (buffer memory address: 8 to 11 (Un\G8 to 11))
The remote I/O error status of remote stations during data link is stored.
For error details, refer to the manual for each remote station.
Address
(decimal)
(4) Detailed error information (buffer memory address: 16 (Un\G16))
The details of errors detected by the master station are stored.
If "Error of station outside control range" is detected, b3 will be latched.
Writing "1" to b3 will clear the "Error of station outside control range" information.
b14 to b7
32
Downloaded from ManualsNet.com
b15
4 Station No.16 Station No.15
5 Station No.32 Station No.31
6 Station No.48 Station No.47
7 Station No.64 Station No.63
b15
8 Station No.16 Station No.15
9 Station No.32 Station No.31
10 Station No.48 Station No.47
11 Station No.64 Station No.63
Bit Name
b0 Data link error
b1 Error (all stations)
b2 Remote I/O error
Error of station outside
b3
control range
b4 Point mode setting error
Transmission speed
b5
setting error
Switching during
b6
operation
Empty
b15 Hardware failure
search engine
b14 b13
Station No.14
Station No.30
Station No.46
Station No.62
b14 b13
Station No.14
Station No.30
Station No.46
Station No.62
0: Data link normal
1: One or more data link faulty stations
0: One or more normal data link stations
1: All stations faulty
0: No remote I/O error
1: One or more faulty remote I/O stations
0: No error
1: Remote station connected to the station whose number is greater than the last
station number in refresh range
0: Normal
1: Point mode setting switch configured outside the range
0: Normal
1: Transmission speed setting switch configured outside the range
0: No switching
1: Switched
0: Normal
1: Failure identified by self-loopback test
to b2 b1
to Station No.3 Station No.2
to Station No.19 Station No.18
to Station No.35 Station No.34
to Station No.51 Station No.50
to b2 b1
to Station No.3 Station No.2
to Station No.19 Station No.18
to Station No.35 Station No.34
to Station No.51 Station No.50
0: No remote I/O error
1: Remote I/O error
Description
⎯
b0
Station No.1
Station No.17
Station No.33
Station No.49
0: Normal
1: Data link error
b0
Station No.1
Station No.17
Station No.33
Station No.49