APPENDICES
Appendix 7 List of Special Registers
APPX - 21
A
I
(4) Fuse blown module
(5) I/O module verification
Table APPX.20 Special registers
Number Name Description Detailed description
Setting side
(setting time)
SD1300
to
SD1331
Fuse blown
module
The bit pattern
of the fuse
blown module in
units of 16
points
0: No fuse
blown
1: Fuse blown
• The output module numbers (units of 16 points), which are in the fuse blown status,
are entered in the bit pattern.
(If parameters are used, the set numbers are entered.)
For a module whose number of output points exceeds 16 points, all bits corresponding
to output module numbers within the number of output points occupied by the module
(in increments of 16 points) turn on.
When a 64-point module is mounted on the slot 0, b0 to b3 turn on when the fuse
has blown.
• This is not cleared even when normal status is restored.
Perform error clear to clear them.
S
(Error)
Table APPX.21 Special registers
Number Name Description Detailed description
Setting side
(setting time)
SD1400
to
SD1431
I/O module
verification error
Bit pattern of
verification error
module in units
of 16 points
0: No I/O
verification
error
1: I/O
verification
error
• When an I/O module having different I/O module information registered upon power on
is detected, its I/O module number is entered in the bit pattern.
(If parameters are used, the set I/O module numbers are entered.)
For a module whose number of I/O points exceeds 16 points, all bits corresponding to
I/O module numbers within the number of I/O points occupied by the module (in
increments of 16 points) turn on.
When a 64-point module is mounted on the slot 0, b0 to b3 turn on when an error
is detected.
• This is not cleared even when normal status is restored.
Perform error clear to clear them.
S
(Error)
b15
b14 b13 b12 b11b10 b9 b8
b7
b6 b5 b4 b3 b2 b1 b0
000
1
(YC0)
000 00000000
1
(Y80)
SD1300
00
1
(Y1F0)
0000000000
1
(Y1A0)
SD1301 0 0
00
1
Y1F
B0
00000000SD1331 0 00
1
Y1F
30
0
Indicates the fuse blown status.
Ex.
b15
b14
b13
b12 b11
b10 b9 b8 b7 b6 b5
b4
b3
b2 b1
b0
000 000 0000000SD1400
00 0 00000000SD1401 00
0 0 0000 000
SD1431
0000
Indicates I/O module verify err.
00
00
00
1
X Y
0
1
X Y
190
1
X Y
1FE0
Ex.
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