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Prosoft: High Speed Wireless Communication Module for Rockwell

Written by Kang Abu on 10:20 AM

Wifi Radio Tuner Control DemoImage by mightyohm via Flickr
age via Wikipedia


The MVI56-WA-PWP Wireless Gateway creates a powerful wireless connection between devices located remotely, and the MVI56-WA-PWP in a ControlLogix rack.

Features and Benefits

ProSoft Wireless Protocol (PWP) offers versatility where a mix of control devices requires cooperation with each other. This involves sharing of information across the applications regardless of device or network type, often at high speed. Wireless bandwidth utilization is optimized by using efficient communication methods. The protocol supports Unicast, Broadcast and Multicast group messaging. Efficiency is based on the fact each device on the "wireless" network can produce these types of messages and each device determines which of these messages to consume.


The module offers one-to-one or one-to-many wireless connection scenarios. Data is exchanged between devices and/or networks using an efficient but powerful wireless protocol. This common database provides the backbone communications for various field devices using different networks.

Functional Specifications

General Radio Specifications

  • Frequency: 2.4 GHZ band (2400 to 2483.5 MHz)*
  • Wireless medium: DSSS - Direct Sequence Spread Spectrum
  • Output power: 32 mW (15 dBm), Up to 500 mW (27dBm) **
  • Channel data rates: 11, 5.5, 2, 1 Mbps
  • Channels - user selectable:
    • 11 - North America
    • 13 - Europe***
    • 14 - Japan
  • Outdoor Range: up to 20+ miles **
  • Security PWP + WEP 64/128 Encryption
  • Antenna Ports (2) RP-SMA connectors, automatic antenna diversity
* Varies with country regulation
** With external amplifier, varies with country regulation
*** Some European countries such as France allow fewer channels

Hardware Specifications

Specification Description
Backplane Current Load 800 mA @ 5 V
Operating Temperature 0 to 60° C (32 to 140° F)
Storage Temperature -40 to 85° C (-40 to 185° F)
Shock: 30g Operational
50g non-operational
Vibration: 5 g from 10 to 150 Hz
Relative Humidity 5 to 95% (non-condensing)
LED Indicators: Module Status
Backplane Transfer Status
Application Status
Serial Activity

Wireless Specifications

Specification Value
Frequency 2.4 GHz band (2400 to 2483.5 MHz)*
Wireless medium DSSS - Direct Sequence Spread Spectrum (802.11 d)
Output power 32 mW (15 dBm)
Channel data rates 11, 5.5, 2, 1 Mbps
Channels - user selectable 11 - North America
13 - Europe**
14 - Japan
Security PWP + WEP 64/128 Encryption with WEP key rollover management
Antenna Ports (2) RP-SMA connectors, automatic antenna diversity
Bit Error Rate (BER) Better than 10^5
Range / Transmit Rate High Speed
11 Mb/s
Medium Speed
5.5 Mb/s
Standard Speed
2 Mb/s
Low Speed
1 Mb/s
Open Office Environment 160m
(525 ft.)
270 m
(885 ft.)
400 m
(1300 ft.)
550 m
(1750 ft)
Semi-Open Office Environment 50 m
(165 ft.)
70 m
(230 ft.)
90 m
(300 ft.)
115 m
(375 ft.)
Closed Office 25 m
(80 ft.)
35 m
(115 ft.)
40 m
(130 ft.)
50 m
(165 ft)
Receiver Sensitivity 83 dBm 87 dBm 91 dBm 94 dBm
General range guidelines (actual results may vary)
* Varies with country regulation
** Some European countries such as France allow fewer channels

Related Information
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Ordering Information

MVI56-WA-PWP High Speed Wireless Communication Module
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