Burhans Research, Inc.
Manufacturing Systems Research

Product Sorting Control System

Operation Summary:

Products are arranged by the operator, in order to interrupt a sequence of photo switches. The sequence determines the next process that each product must go to. The system logic is designed to manage misaligned products and properly send them on to the next process. This is a complex task since the order in which the switches are picked is variable. Of prime consideration: maintain the pattern, and routine practice of operators. No retraining of the procedure was required.


Engineered Features:

Additional space is provided on the backpanel, and DIN rails, for customer expansion devices such as relays and switch inputs.

Customer wire numbering, terminations and functions are maintained.

The program, circuit diagram, PLC software and operating manual are all delivered in a durable, binder with protective coverings for all documents.


Applications: packaging, inspection, conveyor control,
assembly operations, food service, sorting parts


PLC program sorts products. Custom engineered PLC sort control system. PLC sorting control. Allen Bradley PLC program example
Programmable Relay System

Designed, Built & Commissioned by

Burhans Research, Inc.

Bennington, VT

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