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.