Mitsubishi Electric MELSEC Q Series Reference Manual page 382

APPENDICES
Number Name Meaning
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
Error
Error common
common
information
information
SD15
App - 40
Special Register List (Continued)
3 Time (value set)
Meaning
Number
Time : 1 s units (0 to 999 s)
SD5
SD6 Time : 1 ms units (0 to 65535 ms)
SD7
SD8
SD9
SD10
(Empty)
SD11
SD12
SD13
SD14
SD15
Program error location
4
Meaning
Number
SD5
SD6
File name
SD7
(ASCII code: 8 characters)
SD8
SD9 Extension
1
SD10 (ASCII code: 3 characters)
SD11
Pattern
SD12 Block No.
SD13 Step No./transition No.
SD14 Sequence step No. (L)
SD15
Sequence step No. (H)
2: The description of the bit pattern is as follows:
15 14 to 4 3 2 1 0
0 0 to 0 0
(Not used)
Reason(s) for system switching
5
Number
System switching cause (0: automatic system
SD5
switching/ 1: manual system switching)
System switching direction (0:standby system to
SD6
control system/ 1: control system to standby system)
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
3: Stored value of the tracking flag
Whether the tracking data is enabled or disabled can be set.
15 14 to 4 3 2
0 0 0 0
to
(Not used)
1: For extensions, refer to
Explanation
2E (.)
H
2
(Bit number)
SFC block designation present
(1)/absent (0)
SFC step designation present
(1)/absent (0)
SFC transition designation
present (1)/absent (0)
Meaning
Tracking flag
3
(Empty)
(Bit number)
1 0
Invalid work data
invalid (0) /valid (1)
System data
(SFC active step information)
invalid (0)/ valid (1)
System switching cause
invalid (0)/ valid (1)
6.
MELSEC-Q
Set by Corresponding
Corresponding
(When ACPU
set) D9
S (Error) New
S (Error) New
App - 40
CPU
Rem
Q4AR