Simple alternative to PLCs

The latest range of air logic devices, developed and manufactured by Parker Hannifin, is reported to offer engineers an efficient and cost effective modular system that can improve productivity, reliability and profitability of pneumatic circuits in a wide range of applications. In particular, the latest air logic devices can be used as an alternative to conventional PLCs for managing smaller or less complex pneumatic circuits, and in areas where there is no electrical supply or where compliance is required with ATEX directives.

The system comprises a series of compact modules that operate in response to the condition of inlet and exhaust signals from connected upstream pneumatic devices, effectively replicating the operation of electrical switches and relays. They can thus be used individually or combined in series to create a range of simple or advanced functions.