Specifications

Glossary
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PDO
process data object. In CAN-based networks, PDOs are transmitted as unconfirmed
broadcast messages or sent from a producer device to a consumer device. The
transmit PDO from the producer device has a specific identifier that corresponds to
the receive PDO of the consumer devices.
PE
protective earth. A return line across the bus for fault currents generated at a sensor
or actuator device in the control system.
peer-to-peer communications
In peer-to-peer communications, there is no master/slave or client/server
relationship. Messages are exchanged between entities of comparable or
equivalent levels of functionality, without having to go through a third party (like a
master device).
PLC
programmable logic controller. The PLC is the brain of an industrial manufacturing
process. It automates a process as opposed to relay control systems. PLCs are
computers suited to survive the harsh conditions of the industrial environment.
PowerSuite Software
PowerSuite Software is a tool for configuring and monitoring control devices for
electric motors, including ATV31, ATV71, and TeSys U.
preferred module
An I/O module that functions as an auto-addressable device on an Advantys STB
Island but is not in the same form factor as a standard Advantys STB I/O module
and therefore does not fit in an I/O base. A preferred device connects to the Island
bus via an EOS module and a length of a preferred module extension cable. It can
be extended to another preferred module or back into a BOS module. If it is the last
device on the Island, it must be terminated with a 120 Ω terminator.
premium network interface
A premium NIM has advanced features over a standard or basic NIM.
prioritization
An optional feature on a standard NIM that allows you to selectively identify digital
input modules to be scanned more frequently during a the NIM’s logic scan.