Omron NX-SL3500

A-5
Safety CPU Unit Status
The Safety CPU Unit status gives the operating status of the Safety CPU Unit. When a Safety CPU
Unit is placed on the NX bus of the Communications Coupler Unit, the status is displayed as an I/O
port in the I/O map of the Communications Coupler Unit. Also, when a Safety CPU Unit is placed on
the NX bus of the NX-series CPU Unit, the status is displayed as an I/O port in the I/O map of the CPU
rack.
If you set a device variable for the I/O port, you can monitor the status of the Safety CPU Unit from the
NJ/NX-series CPU Unit.
A-5-1
NX-SL3300/NX-SL3500
I/O port Description Condition
R/
W
Data
type
Safety CPU Sta-
tus
Status monitoring
data for the Safety
CPU Unit
This is a WORD variable that contains the following
status.
R WORD
D00 Normal
Operating
Safety programs op-
erating with no er-
rors.
All safety master
connections estab-
lished.
This variable is TRUE when all of the following con-
ditions are met. If even one condition is not met, it is
F
ALSE.
Conditions
• The safety programs are in RUN status (RUN
mode or DEBUG mode (RUN)).
• No event with a level of minor fault or higher cur-
rently exists for the safety programs.
• All FSoE connections are established.
R
BOOL
D01 Program
Operating
Safety programs op-
erating
This variable is TRUE when the following condition
is met. If the condition is not met, it is FALSE.
Condition
• The safety programs are in RUN status (RUN
mode or DEBUG mode (RUN)).
R
BOOL
D02 Program
No Fault
No event with a level
of minor fault or high-
er currently exists for
the safety programs.
This variable is TRUE when the following condition
is met. If the condition is not met, it is FALSE.
Condition
• No event with a level of minor fault or higher cur-
rently exists for the safety programs.
R
BOOL
D03 Safety
Master
Connec-
tion Status
All safety master
connections estab-
lished.
This variable is TRUE when the following condition
is met. If the condition is not met, it is FALSE.
Conditions
• All FSoE connections are established.
R
BOOL
A-5-2
NX-SL5500/NX-SL5700
I/O port Description Condition
R/
W
Data
type
Safety CPU Sta-
tus
Status monitoring
data for the Safety
CPU Unit
This is a UINT variable that contains the following sta-
tus.
R UINT
Appendices
A - 72
NX-series Safety Control Unit User's Manual (Z930)