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Although the Machine Control routine can be structured as desired, it contains sample ladder logic for
Machine Clear Faults, Machine Start and Machine Stop operations.
Table 0.2 Ladder Logic Examples
Example
Machine Clear Faults Example
Machine Start Example
Machine Stop Example
Publication CC-QS008B-EN-P - December 2009
Description
The Machine Clear Fault example in the Machine Control routine uses the Broadcast command
functionality to clear all of the axis faults at the same time. It executes when the
MACHINE_CLEAR_FAULTS bit is set (I:0/3). This bit can be used as needed to control when the
machine faults are cleared. The Axis command functionality could also be used to clear each Axis fault
individually, providing the ability to customize your machine's clear fault process.
The Machine Start example in the Machine Control routine uses the Axis command functionality to
clear each axis fault (if faulted) and start each Axis User Program. It executes when the
MACHINE_START bit is set (I:0/6). This bit can be used as needed to control when the entire machine
is started. Additionally, by using the Axis commands, you can control the Machine Start process and
start the Axis User Programs simultaneously, one at a time or based upon some other predefined
condition. The Broadcast command functionality could also be used to start all of the Axis User
Programs at the same time.
The Machine Stop example in the Machine Control routine uses the Broadcast command functionality
to stop all of the axes the same time. It executes when the MACHINE_STOP bit is set (I:0/7). This bit
can be used as needed to control when the machine is stopped. The Axis command functionality could
also be used to stop each Axis individually, providing the ability to customize your machine's stopping
process.
Control Program Integration
Chapter 3
43
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