Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 - Manual (Page 311)

289 Publication 1398-PM601A-EN-P — October 2000
HOST M
O
DE
Introduction
Overview
The Host Command Language specifies the command syntax and protocol used for serial communications
with an ULTRA Plus or IQ. It allows a smart host device to operate the ULTRA Plus or IQ. The language is
able to perform the following functions:
• control motion and program execution
• monitor status and other runtime information
• execute diagnostics
• set up all nonvolatile memory parameters, programs, etc.
• set up runtime parameters and flags required for control
• control any peripheral devices attached to the ULTRA Plus or IQ.
The Host Command Language serves as the only interface between the ULTRA Plus or IQ and the host.
Since this is the only interface available, the command parsing and execution speed has been optimized to
provide true host mode operation.
IQ Master uses the Host Command Language to communicate with the ULTRA Plus or IQ.
The IQ Host Command Language only applies to Serial Port 2 (P6).
Many of the commands that are available as the host commands are also available as commands, variables,
and flags within an application program. Most variables and flags detailed in the Language Reference are
available as host mode commands with the same name. Refer to the Language Reference for a complete
description of each variable and flag.