INTRODUCTION
Pakscan 3 is a complete field network control system from Rotork. With the addition of a wireless
(P3W) network the user now has the choice of proven current loop technology of the Pakscan IIE
system or the flexibility of a meshed wireless network. The P3W master station is supplied with a
P3W Coordinator module; this module is powered by the master station and facilitates the
communications between the master station and the wireless network. Most types of Rotork actuators
can be connected to a Pakscan current loop provided they are fitted with the necessary field unit.
Information on the respective actuator field units can be found in the appropriate manuals. In this
guide, the type of actuator is not considered, though reference is made to both the integral and IQ
actuator types of field unit. The type of field unit does not affect the setting up of the system. The IQ
and IQT range of actuators integrate fully with the wireless network. The network range can be
extended using a P3W Repeater module, this module is externally powered and it extends the network
range by receiving and retransmitting network messages. Other actuators or devices can be added to
the wireless network using a Pakscan 3 Wireless Modbus Adaptor (P3W WMA). This module is very
similar to the P3W Repeater, but has a RS-485 serial port for communication. The Pakscan 3 master
stations are delivered either as loose items for mounting by the user, or contained in an enclosure
provided by Rotork. The master station will generally be either a single unit, or a hot standby pair.
This manual provides a guide to setting up the Pakscan master, the various P3W Wireless modules,
the loop communications, wireless communications, and the host connections for the most commonly
found applications.
Fig 1: The Pakscan 3 Single Master Station – option: Current loop
Fig 2: The Pakscan 3 Hot Standby Master Station - option: Current loop
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