238 Rockwell Automation Publication 1789-UM002K-EN-P - January 2015
Appendix C Program Virtual Motion
3. Add and configure the SERCOS interface module.
If you are not using a SERCOS interface module, you can still configure a
virtual axis in RSLogix 5000 software.
Each ControlLogix controller can control up to 16 motion modules. Use
one of the following SERCOS interface modules:
• 1756-M03SE
• 1756-M08SE
• 1756-M16SE
4. Add and configure a SERCOS drive.
You can create an axis when you are configuring the drive, or you can
create it later.
Use the Kinetix® Motion Control Selection Guide,
publication GMC-SG001
, to qualify and select the drive.
5. Create an axis and assign it to the Motion Group.
6. Configure the axis.
Logic for Motion Control
The motion instructions operate on one or more axes. You must identify and
configure axes before you can use them.
For more information on individual motion instructions, see the Logix5000
Controllers Motion Instruction Reference Manual, publication MOTION-
RM002.
Each motion instruction has an operand named Motion Control. This field uses
a MOTION_INSTRUCTION tag to store status information during the
execution of motion instructions. This status information can include items such
as instruction status or errors.
ATTENTION: Tags used for the Motion Control Operand of motion
instruction should be used only once. Reuse of the same Motion Control
Operand in other instructions can cause unintended operation of the
control variables.
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