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MELSEC-Q
11 TROUBLESHOOTING
Special Register List (Continued)
Number Name Meaning Explanation
Set by
(When
set)
Corresponding
ACPU
D9
Corresponding
CPU
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
Error
common
information
Error
common
information
• Common information corresponding to the error codes (SD0) is stored
here.
• The following five types of information are stored here:
1
Slot No.
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
Meaning
Slot No./PLC No./Base No. 1 2
I/O No.
(Vacant)
Number
*1: For a multiple PLC system, the slot number or PLC number is
stored depending on the error that occurred.
Slot 0 in the multiple PLC system is the one on the slot on the
right of the rightmost CPU module.
(Refer to the corresponding error code for which number has
been stored.)
PLC No. 1: 1, PLC No. 2: 2, PLC No. 3: 3, PLC No. 4: 4
*2: If a fuse blown or I/O verify error occurred in the module loaded
in the MELSECNET/H remote I/O station, the network number is
stored into the upper 8 bits and the station number into the lower
8 bits.
Use the I/O No. to check the module where the fuse blown or I/O
verify error occurred.
2
File name/Drive name
Number
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
Meaning
Drive
2E
H
(.)
File name
(ASCII code: 8 characters)
(Vacant)
42
H
(B) 41
H
(A)
44
H
(D) 43
H
(C)
46
H
(F) 45
H
(E)
48
H
(H) 47
H
(G)
49
H
(I) 2E
H
(.)
4B
H
(K) 4A
H
(J)
B15 to B8 B7 to B0
(Example)
File name=
ABCDEFGH. IJ
K
Extension
(ASCII code: 3 characters)
3
(Continued to next page)
S (Error) New
+Rem
REMARK
3: Extensions are shown below.
SD10 SD11
Higher8 bits Lower8 bits Higher8 bits
Extension name File type
51H 50H 41H QPA Parameters
51H 50H 47H QPG Sequence program/SFC program
51H 43H 44H QCD Device comment
51H 44H 49H QDI Device initial value
51H 44H 52H QDR File register
51H 44H 53H QDS Simulation data
51H 44H 4CH QDL Local device
51H 54H 53H QTS Sampling trace data (For QnA)
51H 54H 4CH QTL Status latch data (For QnA)
51H 54H 50H QTP Program trace data (For QnA)
51H 54H 52H QTR SFC trace file
51H 46H 44H QFD Trouble history data