Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 - Manual (Page 321)

Variables and Flags Assignment and Request Commands • Introduction 299
Publication 1398-PM601A-EN-P — October 2000
HOST M
O
DE
Variables and Flags Assignment
and Request Commands
Introduction
All variable assignment commands have an associated request command that can be used to query the
current value of the variable. The value returned by the request command is in the same format as the
data required in the assignment. When nonvolatile memory parameters are changed, the ULTRA Plus or
IQ will automatically update internal checksum data if appropriate.
Personality Module Variables and Flags
Many variables have both a nonvolatile value stored in the Personality Module and an internal runtime
value. When the value in the Personality Module is changed, the runtime value is updated automatically.
When a program changes a value (for example, KP) it is actually changing only the internal runtime
value. Most runtime values are returned to the value stored in the Personality Module upon completion
of the program.
If a value is stored in the Personality Module, the command will set or read the value in the Personality
Module. To set or read the runtime value, precede the variable name with a “#”.