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194 Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Chapter 4 Input/Output Instructions (MSG, GSV, SSV, IOT)
Get System Value (GSV) and
Set System Value (SSV)
The GSV/SSV instructions get and set controller system data that is stored
in objects.
Operands:
Relay Ladder
Operand Type Format Description
Class name Name Name of object.
Instance name Name Name of specific object, when object requires name.
Attribute Name Name Attribute of object.
Data type depends on the attribute you select.
Destination (GSV) SINT
INT
DINT
REAL
structure
Tag Destination for attribute data.
Source (SSV) SINT
INT
DINT
REAL
structure
Tag Tag that contains data you want to copy to the attribute.