Features
• Demonstrates sequential control
• Initial process conditions can be set
• Demonstrates the use of simple interrupts
• Low cost

Curriculum Coverage
• Fundamentals of Logic
• Basics of PLC programming
• Developing Ladder Logic Programs
• Programming timers
• Setting initial conditions
• Time based process control
• Use of interrupts and emergency stop

This easy to understand process allows a sequence of events to be controlled.
Through program selection switches initial program conditions can be set. This allows the development of several different programs that can be used as conditional jumps depending on how the initial conditions have been set.
Using push-button switches to simulate interrupt conditions, such as un balanced load, more complex control problems can be developed.

The units use 5V TTL signals and can be interfaced to a PLC using standard 24V dc logical inputs. A PLC interface is required to operate the above units (34-403).