Omron NS

Section 2 NS Series Functions 2-4 System Memory
2-34
NS Series Programming Manual
$SB54 is turned ON when level 1 or higher authentication is completed. $SB54 is turned OFF when
authentication is cancelled.
$SB55 is turned ON when level 2 or higher authentication is completed. $SB55 remains OFF during
level 1 and is turned OFF when authentication is cancelled.
$SB56 is turned ON when level 3 or higher authentication is completed. $SB56 remains OFF during
level 2 or lower and is turned OFF when authentication is cancelled.
$SB57 is turned ON when level 4 or higher authentication is completed. $SB57 remains OFF during
level 3 or lower and is turned OFF when authentication is cancelled.
$SB58 is turned ON when level 5 or higher authentication is completed. $SB58 remains OFF during
level 4 or lower and is turned OFF when authentication is cancelled.
R
R
R
e
e
e
f
f
f
e
e
e
r
r
r
e
e
e
n
n
n
c
c
c
e
e
e
♦
The status flags will not operate if the Function mode is set to enable a password without
levels in the Password Setting Dialog Box. Refer to 2-8-15 Passwords (Extension Tab) for
details on password settings.
System bit memory ($SB) can be allocated to the following areas on the host PLC.
Symbol C-series PLCs Allocation
CVM1/CV-series
PLCs
Allocation CS/CJ-series PLCs Allocation
None I/O area (IR)

I/O area (CIO)

I/O area (CIO)

H HR Area

 
HR Area

A AR Area

AR Area
×
AR Area

L LR Area

 
LR Area (See note 1.)

T
Timer present
values
×
Timer present
values
×
Timer present values
×
TU
   
Timer Completion
Flags
×
C
Counter present
values
×
Counter present
values
×
Counter present
values
×
CU
   
Counter Completion
Flags
×
W
   
Work Area

TK
   
Task Flags
×
D DM Area

DM Area

DM Area

E
EM Area
(See note 2.)
(Current bank)

EM Area
(Current bank)

EM Area
(Current bank)

E0_
   
EM Area
Bank 0

E18_
   
EM Area
Bank 18

Note 1. LR 00000 to LR 00199 are converted to and used as I/O area words CIO 01000 to CIO 01199.
2. C200HX/HG/HE-E/-ZE PLCs are the only C-series PLCs that support the EM Area (EM). All bits in the
AR Area for CVM1/CV-series PLCs are allocated for system functions and cannot be used for any other
application.
The ranges for each area vary with the PLC model. Refer to
Appendix 3 PLC Memory Areas. Refer to
System Settings and Project Properties in the CX-Designer Online Help for details on allocation meth-
ods.
Set a BOOL variable with 64 elements when allocating a tag.