Rockwell Automation 284E ArmorStart with EtherNet/IP - User Manual - Manual (Page 337)

Rockwell Automation Publication 280E-UM001B-EN-P – July 2012 337
StepLogic, Basic Logic and Timer/ Counter Functions Appendix E
Example
• Run at Step 0
• Transition to Step 1 when Logic In1 is true
Logic senses the edge of Logic In1 when it transitions from OFF to ON.
Logic In1 is not required to remain ON.
• Transition to Step 2 when both Logic In1 and Logic In2 are true
The drive senses the level of both Logic In1 and Logic In2 and transitions
to Step 2 when both are ON.
• Transition to Step 3 when Logic In2 returns to a false or OFF state
Inputs are not required to remain in the On condition except under the
logic conditions used for the transition from Step 2 to Step 3.
Figure 111 - Logic Transitioning to the Next Step
The step time value and the basic logic may be used together to satisfy machine
conditions. For instance, the step may need to run for a minimum time period
and then use the basic logic to trigger a transition to the next step.
Figure 112 - Step Running for a Minimum Time Period
Time
Logic In1
Logic In2
Frequency
Start Step 0 Step 1 Step 2 Step 3
Time
Logic In1
Logic In2
Frequency
Start Step 0 Step 1