
Designing Add-On Instructions Chapter 1
Safety application instructions, such as Safety Mat (SMAT), may be used in safety
Add-On Instructions only. For detailed information on safety application
instructions, refer to the
GuardLogix Safety Application Instruction Set Safety
Reference Manual, publication 1756-RM095.
In addition, the following instructions may be used in an Add-On Instruction, but
the data instances must be passed as InOut parameters.
• ALMA (Analog Alarm)
• ALMD (Digital Alarm)
• All Motion Instructions
• MSG (Message)
Using GSV and SSV instructions
When using GSV and SSV instructions inside an Add-On Instruction, the
following classes are supported:
• AddOnInstructionDefinition
(1)(2)
• Module
• Axis • Program
(2)
• Controller Device • Routine
(3)
CoordinateSystem
Safety
• DF1
(3)
• Task
(3)
• FaultLog • TimeSynchronize
(1) GSV-only. SSV instructions will not verify.
(2) The classes that represent programming components - Task, Program, Routine, AddOnInstructionDefinition - support only
’this’ as the Instance Name.
(3) The DF1 and Serial Port class names are not available for projects using controllers that do not have serial ports.
When you enter a GSV or SSV instruction, Logix Designer application displays
the object classes, object names, and attribute names for each instruction. This
table lists the attributes for the AddOnInstructionDefinition class.
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