Mitsubishi MELSEC - Page 173

12.7 Special Register List
12 - 73
12
TROUBLESHOOTING
9
EMC AND LOW VOLTAGE DIRECTIVES
10
LOADING AND INSTALLATION
11
MAINTENANCE AND INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
Remark
*3 : Extensions are shown in Table12.20.
Table12.19 Special register
Number Name Meaning Explanation
Set by
(When set)
Corresponding
CPU
SD5
Error
common
information
Error common
information
• Common information corresponding to the error codes (SD0)
is stored here.
• The following six types of information are stored here:
1) Module No./Base No.
*1: The storing value "255" in SD5 (Slot No.) indicates that the
slot number for a module specified by an instruction cannot
be identified. When storing the base number to SD5, store 0
(main base unit).
*2: The storing value "FFFFH" in SD6 (I/O No.) indicates that the
I/O number cannot be identified on the I/O assignment setting
tab of PLC parameter due to overlapping of I/O numbers or
that the I/O number cannot be identified from the network
number specified by an instruction. In this case, the error
location can be identified in SD5.
2) File name/Drive name
S (Error) QS
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
Table12.20 Extension name
SDn SDn+1
Extension
name
File type
Higher 8 bits Lower 8 bits Higher 8 bits
51H 50H 41H QPA
Parameters
51H 50H 47H QPG
Sequence program
51H 43H 44H QCD
Device comment
1
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
Number
Slot No./Base No.
I/O No. 2
Meaning
(Empty)
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
2E
H(.)
3
Number Meaning
Drive
File name
(ASCII code: 8 characters)
Extension
(ASCII code: 3 characters)
(Empty)
MAIN.QPG
41H(A) 40H(M)
43H(N) 49H(I)
20
H( SP )20x( SP )
20
H( SP )20H( SP )
51H(Q) 2EH(.)
47
H(G) 50H(P)
b15 to b8 b7 to b0
(Example) File name =