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12.7 Special Register List
12 - 90
12
TROUBLESHOOTING
9
EMC AND LOW
VOLTAGE
DIRECTIVES
10
LOADING AND
INSTALLATION
11
MAINTENANCE AND
INSPECTION
12
TROUBLESHOOTING APPENDICES INDEX
Table12.20 Special register
Number Name Meaning Explanation
Set by
(When set)
Corresponding
CPU
SD81
Cause of
error
Cause of error
• When a continuation error occurs, the corresponding bits are
all set to ON.
• Canceling the error, starting up the safety programmable
controller power or canceling the safety CPU module reset
after eliminating the cause of the error makes the bits go OFF.
S (Error) QS
SD150
I/O module
verify error
Bit pattern, in
units of 16
points,
indicating the
modules with
verify errors.
0: No I/O verify
errors
1: I/O verify
error present
• When an I/O module whose information is different from the
one registered at power-on is detected, the corresponding I/O
module number (in units of 16 points) is stored. (The I/O
module number set in parameter is stored if it is set.)
If a module has more than 16 I/O points, the I/O module
number (in units of 16 points) corresponds to the start 16 I/O
points turns on.
(Example) When a module with 64 I/O points is mounted in
slot 0, only b0 turns on when an error is detected.
• Not cleared even if the blown fuse is replaced with a new one.
This flag is cleared by error resetting operation.
S (Error) QS
SD151
SD152
SD153
Bit No. Name of the cause
0
1
2
3
4
5
6
7
8
9
10 to 15
Instantaneous power failure
Battery low
Standard ROM write count excess
TEST MODE continuous RUN tolerance timeout
Scan timeout
Annunciator ON
Safety remote station detection error
Safety remote station product information mismatch
Initial monitoring timeout error
Safety monitoring timeout error
Error monitoring timeout error
Safety remote station data split error
Safety remote command error
Safety remote station link ID error
Safety remote station running number error
Safety remote station reception data error
Safety station reception data error
Safety connection setting error
Empty (fixed to 0)
Safety communication target station detection error
Safety station product information mismatch
b15b14b13b12 b11b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
000 000 0000000
SD150
00 0 00000000SD151 00
0 0 0000 000SD153 0000
Indicates an I/O module verify error
00
00
00
1
()
X Y
3E0
1
()
X Y
0
1
()
X Y
190