Rockwell Automation 999 IMC S Class Compact Motion Controller (Cat. No. 4100-999-122) User Manual
Page 96
 
5-16
Understanding IMC-S/23x Setups
Publication 999-122 - January 1997
Editing the Direct 
Command Mode 
Configuration
After completing the axis fault action configuration, the IMC-S/23x 
asks
Toggle to
YES
and press ENTER to configure direct command mode
for your application.
Direct Command Mode is a mode of operation where iCODE (the 
native language of the IMC-S/23x) commands can be sent directly to 
the IMC-S/23x via serial port A. It is used by the Online Manager in 
GML for communicating with the motion controller during application 
program development and debugging. 
The recommended setting of the direct command mode configuration 
parameters for use with GML is shown below:
If you are using a dumb terminal or other terminal emulation software 
on a computer which automatically inserts Line Feed characters 
whenever a Carriage Return character is received, answer 
NO
to the
Linefeed Insertion?
question to turn off the extra line feed
normally generated by the IMC-S/23x. You can tell that your terminal 
is generating its own linefeeds if the direct command mode display is 
double spaced. 
Normally, the IMC-S/23x appends a Carriage Return character to the 
response string generated by all commands sent to it in direct command 
mode which request data. If you are using direct command mode to 
communicate to a host computer, answer 
NO
to the
Carriage
Return Insertion?
question to turn off the sending of this
Carriage Return character after all response strings.
Normally, the IMC-S/23x echoes all commands sent to it in direct 
command mode so that they are displayed on the screen. This is known 
as full duplex operation. If you are using direct command mode to 
communicate to a host computer or another IMC-S/23x in a multidrop 
configuration, answer 
HALF
to the
Duplex?
question to set the
IMC-S/23x direct command mode to half duplex and eliminate the extra 
echoed characters. 
Another Axis? NO
Edit Direct Command Mode Config? NO
Linefeed Insertion? YES
Carriage Return Insertion? YES
Duplex? FULL
Multidrop? NO
TIP: If the direct command mode display is double-spaced, turn off 
Linefeed Insertion.