12
- 70
12.6 Special Reray List
12
TROUBLESHOOTING
(4) Safety CPU
(5) Boot operation
(6) Instruction-Related Special Relays
(7) CC-Link Safety
Table12.14 Special relay
Number
Name
Meaning
Explanation
Set by
(When Set)
Corresponding
CPU
SM560
TEST MODE
flag
OFF : Other than TEST
MODE
ON : TEST MODE
• Turns ON when operating on the TEST
MODE.
• Turns OFF when operating on the other
mode (SAFETY MODE, SAFETY MODE
(wait-for-restart)).
S (Status change)
QS
SM561
Continuous
RUN of
tolerance time
setting for the
TEST MODE
OFF : Within the setting
time
ON : Over the setting
time
• Turns ON when the continuous RUN of
tolerance time set for the TEST MODE in the
parameter is exceeded.
S (Error)
Table12.15 Special relay
Number
Name
Meaning
Explanation
Set by
(When Set)
Corresponding
CPU
SM660
Boot operation
OFF : Program memory
execution
ON : During boot
operation
(On the TEST MODE)
• Turns ON during the boot operation from
standard ROM.
• Turns OFF when the boot operation from
standard ROM is not run.
(On the SAFETY MODE)
• Always ON
S (Initial)
QS
Table12.16 Special relay
Number
Name
Meaning
Explanation
Set by
(When Set)
Corresponding
CPU
SM722
BIN/DBIN
instruction error
disabling flag
OFF : Error detection
performed
ON : Error detection not
performed
• Turned ON when "OPERATION ERROR" is
suppressed for BIN or DBIN instruction.
U
QS
Table12.17 Special relay
Number
Name
Meaning
Explanation
Set by
(When Set)
Corresponding
CPU
SM1004
Safety station
refresh
communication
status
(Safety master
module 1)
OFF : Nomal
ON : Communication
error
The safety station refresh communication
atatus is stored. (The status of each station are
stored in SD1004 to SD1007.)
S (Status change)
QS
SM1204
Safety station
refresh
communication
status
(Safety master
module 2)
OFF : Nomal
ON : Communication
error
The safety station refresh communication
status is stored. (The status of each station are
stored in SD1204 to SD1207.)
S (Status change)