![background image](http://html1.mh-extra.com/html/omron/ns/ns_programming-manual_743537067.webp)
Section 2 NS Series Functions
2-4 System Memory
2-20
NS Series Programming Manual
Address Classification
Function
$SB42
Notification/control
Initialize Error Log
$SB43
Notification/control
Save Error Log
$SB44
−
Reserved
$SB45
Control
Macro error display control
$SB46
Notification
Notification of Macro Error
$SB47
Notification
Logging Process or Video Capture Error Flag
$SB48
Notification
Memory Card Free Space Check Flag
$SB49
Notification/control
Stop Memory Card
$SB50
Notification
Memory Card Removing Status (Power OFF)
$SB51
Notification
Periodical Data Log Save in Process Flag
$SB52
Notification
Data Block Operation Complete Flag
$SB53
Notification/control
Prohibit Screen Saver Startup
$SB54
Notification
Password Level 1 Operable Status
$SB55
Notification
Password Level 2 Operable Status
$SB56
Notification
Password Level 3 Operable Status
$SB57
Notification
Password Level 4 Operable Status
$SB58
Notification
Password Level 5 Operable Status
$SB59
−
Reserved
$SB60
−
Reserved
$SB61
−
Reserved
$SB62
−
Reserved
$SB63
−
Reserved
Note: The notification bits are not write-prohibited. Also, the system will not restore values, except when the
status has changed.
N
N
N
o
o
o
t
t
t
e
e
e
♦
The NS-series PT may operate incorrectly if addresses that are reserved by the system are ac-
cessed. Do not access these addresses.
System memory is allocated to PLC areas as shown below.
Set the allocation addresses for the system memory on the Initial Tab Page of the CX-Designer. Select
PT – System Settings
to access the Initial Tab Page.
15
0
16
32
$SB = m
31
47
Wd m:
$SB0 to $SB15
Wd m+1: $SB16 to $SB31
Wd m+2: $SB32 to $SB47
Wd m+3: $SB48 to $SB63
48
63
N
N
N
o
o
o
t
t
t
e
e
e
♦
The method for allocating system memory in the PLC areas is the same as for the NT Series. Refer
to
2-4-3 System Memory Compatibility with the NT Series
for details.
♦
Set a BOOL variable with 64 elements when allocating a tag.
RUN Signal (Pulse) ($SB0)
$SB0 notifies the host memory and PT memory that the PT is operating (normal operation on normal
screens.) During operation, $SB0 alternates between ON and OFF according to the interval set for
RUN signals (pulses).
Summary of Contents for NS -
Page 2: ......
Page 12: ...Contents vi NS Series Programming Manual...
Page 46: ...Section 1 Overview 1 5 Procedure before Operation 1 33 NS Series Programming Manual...
Page 590: ...Section 3 Using PTs 3 12 Function Key Settings NS15 Only 3 35 NS Series Programming Manual...
Page 604: ...Section 4 Using Functions 4 1 Application 4 13 NS Series Programming Manual...
Page 640: ...Section 5 Troubleshooting and Maintenance 5 2 Error Messages 5 35 NS Series Programming Manual...
Page 680: ...Appendices Appendix 6 Additional NS Series Functions A 39 NS Series Programming Manual...
Page 682: ......
Page 683: ......