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4-1 System Memory
Address
$SW35
$SW36
$SW37
$SW38
$SW39
$SW40
Classification
Control
Control
Control
Notification
Notification
Control
Function
NSA
Series
NonNSA
Series
OK
OK
OK
OK
OK
OK
Offset Value for Index I8
OK
Offset Value for Index I9
OK
Data Log Group No.
OK
Data Block Error No.
OK
Authentication Level
OK
Alarm/Event History Initialization
OK
Range
Note: The notification words are not write-prohibited. In addition, the system will not restore values,
except when the status has changed.
System word memory is allocated to PLC areas as shown below. Allocated Addresses for
system memory are set under PT – System Setting – Initial from the CX-Designer. BCD or
binary data storage can be selected for each group by clicking the System Memory List
Button in the Initial Tab Page.
$SW = n
For information on the system word memory, refer to 2-4 System Memory in the NS Series
Programming Manual.
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