Omron NS7 Series Setup Manual page 234

Address Classification
$SW31 Control
$SW32 Control
$SW33 Control
$SW34 Control
$SW35 Control
$SW36 Control
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 under NS-Designer Settings/Initialize
$SW = n
Word n: $SW0
Word n+1: $SW1
Word n+36: SW36
Appendix 9 List of Optional Products
Function
Offset value for index I4
Offset value for index I5
Offset value for index I6
Offset value for index I7
Offset value for index I8
Offset value for index I9
A-39