I/O port Description Condition
R/
W
Data
type
D00 Normal Op-
erating
Safety programs
operating with no
errors.
All safety master
connections estab-
lished.
This variable is TRUE when all of the following condi-
tions are met. If even one condition is not met, it is
FALSE.
Condition
• 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.
• All the CIP Safety Originator connections are es-
tablished.
• No error is present in the CIP Safety T
arget con-
nections.
R BOOL
D01 Program
Operating
Safety programs
operating
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 lev-
el of minor fault or
higher currently ex-
ists 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
Connection
Status
All safety master
connections estab-
lished.
This variable is TRUE when all of the following condi-
tions are met. If even one condition is not met, it is
FALSE.
Condition
• All FSoE connections are established.
• All the CIP Safety Originator connections are es-
tablished.
R BOOL
D04 FSoE Mas-
ter Connec-
tion Status
All the FSoE safety
master connections
established.
This variable is TRUE when the following condition is
met. If the condition is not met, it is FALSE.
Condition
• All FSoE connections are established.
R BOOL
D05 CIP Safety
Originator
Connection
Status
All the CIP Safety
Originator connec-
tions established.
This variable is TRUE when the following condition is
met. If the condition is not met, it is FALSE.
Condition
• All the CIP Safety Originator connections are es-
tablished.
R
BOOL
D06 CIP Safety
Target Con-
nection
Status
No error in the en-
tire CIP Safety Tar-
get connections
This variable is TRUE when the following condition is
met. If the condition is not met, it is FALSE.
Condition
• No error is present in the entire CIP Safety Target
connections.
R BOOL
Appendices
A - 73
NX-series Safety Control Unit User's Manual (Z930)
A-5 Safety CPU Unit Status
A
A-5-2 NX-SL5500/NX-SL5700