Specifications

App - 31
Special Register List (Continued)
Number Name Meaning Explanation
Set by
(When set)
Applicable
ACPU
D9
Applicable
CPU
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
• The common information corresponding to the error codes (SD0) is
stored here.
• The following five types of information are stored here:
1) Unit/module No.
Number
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
Meaning
Slot No./PLC No. *1 *2
I/O No.
(Vacant)
*1 : For a multiple PLC system, the slot number or the 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. (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 verification 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
the I/O verification 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)
Extension *3
(ASCII code: 3 characters)
(Vacant)
(Example) File name=
ABCDEFGH.IJK
42H(B) 41H(A)
44H(D) 43H(C)
46H(F) 45H(E)
48H(H) 47H(G)
49H(I) 2DH(.)
4BH(K) 4AH(B)
B15 to B8 B7 to B0
S (Error
occurrence)
New
+ Rem
*3: For extensions, refer to REMARK below.
REMARK
Extensions are shown below.
SD10 SD11
Higher 8 bits Lower 8 bits Higher 8 bits
Extension
name
File type
51H 50H 41H QPA Parameter
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