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Appendix
NX-series Safety Control Unit User’s Manual (Z930)
A-6 I/O Ports for Safety I/O Units That Are
Displayed in the I/O Map of the NJ/NX-series
A
A-6-2 NX-SID800 Safety Input Unit
Si05 Logical Value BOOL R Si05 Logi-
cal Value
Gives the status of safety input ter-
minal Si05.
0: OFF, 1: ON
0Same
Si06 Logical Value BOOL R Si06 Logi-
cal Value
Gives the status of safety input ter-
minal Si06.
0: OFF, 1: ON
0Same
Si07 Logical Value BOOL R Si07 Logi-
cal Value
Gives the status of safety input ter-
minal Si07.
0: OFF, 1: ON
0Same
Safety Connection
Status
BOOL R Safety Con-
nection Sta-
tus
This flag indicates when a safety
connection is active. Use it for an
input to the Activate terminal on a
safety FB or for safety connec-
tion/disconnection applications.
0Same
Safety Input Termi-
nal Status
BOOL R Safety Input
Terminal
Status
This flag indicates the status of the
safety input terminals.
0: An error has occurred on one of
the safety input terminals.
1: All of the safety input terminals
are normal (no errors).
0Same
Unit Normal Status BOOL R Unit Nor-
mal Status
This flag indicates the status of the
Unit.
0: An error has occurred.
1: Normal (no errors)
0 ---
IO Power Supply
Error Flag
BOOL R IO Power
Supply
Error Flag
This flag indicates the status of the
I/O power supply voltage.
0: The I/O power supply voltage is
normal.
1: The I/O power supply voltage is
incorrect or the I/O power supply is
OFF.
0 ---
Standard Input 2nd
Byte
BYTE R Standard
Input 2nd
Byte
--- 00 hex ---
Si00 Status BOOL R Si00 Status Gives the status of safety input ter-
minal 00.
0: Error
1: No error
0 ---
Si01 Status BOOL R Si01 Status Gives the status of safety input ter-
minal 01.
0: Error
1: No error
0 ---
Si02 Status BOOL R Si02 Status Gives the status of safety input ter-
minal 02.
0: Error
1: No error
0 ---
Si03 Status BOOL R Si03 Status Gives the status of safety input ter-
minal 03.
0: Error
1: No error
0 ---
Port
Data
type
R/W Name Description Default
Corre-
sponding
port name
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