Rockwell Automation 1398-PDM-xxx IQ Master Version 3.2.4 for IA-2000 and IQ-5000 Positioning Drive Modules, IQ-55 - Manual (Page 314)

292 Syntax • Command Syntax
Publication 1398-PM601A-EN-P — October 2000
HOST
M
O
D
E
Syntax
This section details the syntax of commands expected by the ULTRA Plus or IQ and the responses to
those commands.
Command Syntax
The ULTRA Plus or IQ determines the command type and the required action(s) from the syntax of the
incoming command. Incoming commands are echoed to the host unless the ULTRA Plus or IQ is in a
multi-drop mode of operation and not selected, or in a multi-drop mode and processing a global com-
mand.
The Host Command Language is implemented with three general types of commands:
• Execution - requires some action to be taken by the ULTRA Plus or IQ.
• Assignment - sets the value of variables or flags or structures.
• Request - reads the value of variables or flags or structures.
All commands have the basic syntax:
Syntax
[WS] COMMAND [[WS] [=] data[, data]] [WS] [SUM] END
COMMAND The command field is the name of the host command. It
is case insensitive alphanumeric with the first character
always a letter.