ScadaBridge™
Wireless I/O Bridge and RTU


wireless RTU and water tank

Wireless RTU Provides I/O "Bridge"

Low-cost license-free wireless SCADA link for small I/O count applications




Features Specifications DataSheet

Our ScadaBridge Wireless RTU is a new generation of Remote Terminal Unit (RTU) that combines the traditional Remote I/O functions of an RTU with a built-in Spread Spectrum radio, lowering cost and simplifying installation and support. The Wireless RTU can serve as a "standard" Modbus Slave RTU in a radio based SCADA system, or as a wireless I/O bridge that "mirrors" analog and digital signals between two remote locations, providing radio capabilities to non-radio enabled process equipment. The ScadaBridge is "plug-and-play" compatible with all popular SCADA/DCS software packages - including WonderWare, FIX, FactoryLink and Labview - and with PLCs and process controllers.

The ScadaBridge RTU is an ideal solution for monitoring tanks and lift stations, and remote control and monitoring of well pumps. It supports "on-exception" reporting and "store-and-forward" message repeating for optimal radio operation. In addition to simple I/O, it includes pulse/DI cycles totalization, runtime totalization and rate calculation to simplify billing based on flow or wattage, and maintenance monitoring based on cycles or runtime. Extremely low-power consumption makes it ideal for solar and battery-backed applications. Easy installation, low cost, wide temperature range and "plug-and-play" compatibility make the ScadaBridge a great choice for small I/O SCADA systems and wireless I/O applications.

Features

Back to Top
Key features of the ScadaBridge Wireless RTU include:

ScadaBridge Specifications

Back to Top
Analog Inputs
Quantity 2
Analog Input Signals 0 (or 4) to 20mA
Resolution 10 bits (1 part in 1024)
Input Configuration Single-ended w/shared common
Non-linearity 0.5 LSB (0.05%)
Input Overload Protection Self-resetting Polyfuse & Transorb
Output Overload Tolerance 30Vdc/100mA
Analog Outputs
Quantity 2
Resolution 10 bits (1 part in 1024)
Output Configuration Single-ended w/shared common
powered from RTU input power
Output Overload Protection Self-resetting Polyfuse & Transorb
Discrete Inputs/Outputs
Discrete Inputs:
Quantity Up to 4 (shared with DOs)
Input type 4.7K ohm pullup to RTU power
Input Levels Contact closure (2mA at 12Vdc in)
Pulse Counting Rate up to 50Hz
Pulse Rate Totalization 4 x 109 counts (32-bits)/gate period
1 to 65,535 seconds up to 50Hz
Runtime Acumulation up to 4 x 109 seconds (136 years)
Discrete Outputs:
Quantity Up to 4 (shared with DIs)
Output Type Power FET, ON sinks to common
Output Volatage, nominal/max. 12/24Vdc / 0 to 28Vdc
Output Switch Current rating .50A @ 20°C, derate to .25A @ 80°C
Overvoltage / Transient Protection Transorb
Overload Protection / Fault Current Self resetting Polyfuse, 750mA
Communications
Serial Ports 1
Serial Port Interface RS-232, 9 pin D Male
Data rate & Framing 2400 to 115K baud, No Parity
Protocol Modbus RTU
Internal Radio Option
Radio Type Spread Spectrum
Frequency Range 902 to 928 MHz, or 2.40 to 2.4835 GHz
RF Output Power User Programmable
Up to 1.0 watt/+30dBm (900MHz)
Up to 0.5 watt/+26dBm (2.4GHz)
Spreading Method Frequency Hopping
Modulation Spread spectrum GFSK
Over-the-air data rates 120kBs to 170kBs
Data Rate Up to 115K baud
Format full duplex, asynchronous
Error Checking 32-bit CRC
Antenna Connector TNC Female
General Specifications
Dimensions 3.5 W x 7.0 L x 1.3 D (89mm W x 178mm L x 33mmD)
Power
Temperature Operating, -40°C to 75°C (-40°F to 167°F)
Storage, -40°C to 100°C (-40°F to 212°F)
Humidity 5 to 85% RH (non-condensing)
Operating Current Transmit, 200mA typical/650mA maximum
Receive, 60mA typical/120mA maximum
Power Save Mode, 14mA typical/25mA maximum



Download Brochure or Datasheet:

Back to Top

* PDF format -- requires Adobe Acrobat Reader 4.0 or newer.
* Click below to get it for free.

*

Frequently asked questions about the ScadaBridge wireless RTU and I/O bridge.