Mitsubishi MELSEC-Q Series User Manual page 31

3 SPECIFICATIONS
Address (Decimal)
4 Station No.16
5 Station No.32
6 Station No.48
7 Station No.64
0: Normal
1: Data link error
Address (Decimal)
8 Station No.16
9 Station No.32
10 Station No.48
11 Station No.64
0: No remote I/O Error identified
1: Remote I/O error identified
Bit
b0 Data link failure
b1 All stations failed
b2 Remote I/O error
b3 Error of station outside control range
b4 Point mode setting error
b5 Transmission speed setting error
b6 Switching during operation
b14 to b7 Vacant
b15 Hardware failure
3 - 7
(2) Information of faulty station (Buffer memory address 4 - 7: Un\G4 – 7)
The data link states of remote stations are stored in this area.
b15 b14
Station No.15
Station No.31
Station No.47
Station No.63
(3) Remote I/O error information (Buffer memory address 8 - 11:
Un\G8 – 11)
Information on remote I/O error of each remote station executing data link is
stored in this area.
For individual errors, see the related manual for the remote station.
b15 b14
Station No.15
Station No.31
Station No.47
Station No.63
(4) Detailed error information (Buffer memory address 16: Un\G16)
Detailed information on errors detected by the master station is stored in this
area. When an error is detected in a station outside the control range, b3 will be
latched. Writing "1" to this area (b3) clears the error information of the station.
Item
b13 to
Station No.14 to Station No.3
Station No.30 to Station No.19 Station No.18 Station No.17
Station No.46 to Station No.35 Station No.34 Station No.33
Station No.62 to Station No.51 Station No.50 Station No.49
b13 to
Station No.14 to Station No.3
Station No.30 to Station No.19 Station No.18 Station No.17
Station No.46 to Station No.35 Station No.34 Station No.33
Station No.62 to Station No.51 Station No.50 Station No.49
0: Data link normal
1: One or more faulty station in data link identified
0: One or more normal data link station identified
1: All stations are faulty
0: No remote I/O error
1: One or more faulty remote I/O station
0: No error
1: Remote station(s) set to the station number higher than the last
of refresh range
0: Normal
1: Point mode switch set outside valid range
0: Normal
1: Transmission speed setting switch set outside valid range
0: No switching
1: Switching identified
0: Normal
1: Failure identified by self-loopback test
MELSEC-Q
b2 b1
Station No.2
b2 b1
Station No.2
Contents
b0
Station No.1
b0
Station No.1
3 - 7