528 Rockwell Automation Publication MOTION-RM002H-EN-P-February 2018
Structured Text
Condition/State Action Taken
Prescan See Prescan in the Ladder Diagram table.
Normal execution See Rung-condition-in is false in the Ladder Diagram table.
Postscan See Postscan in the Ladder Diagram table.
Error Codes
See Motion Error Codes (.ERR) for run time errors for motion instructions when
MDAC is active.
Verification Errors
An invalid or No Master Axis will cause new errors to be generated when verified
by the programming software. The following conditions may cause this error:
• The Master and Slave Axis are the same.
• Master or Slave Axis is not configured.
• Master or Slave Axis is inhibited.
• Redefine position is in progress.
• Home of an axis is in progress.
MDSC ALL Conflict. The ALL parameter is not allowed while a Slave axis
motion generator (for example, the jog motion generator) is already assigned.
Examples
Example 1
Ladder Diagram