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Raveon’s data radio products are well-suited for Wireless Remote Terminal Units (RTU) in the SCADA and telemetry industry.  Wireless SCADA systems are common for telemetry, remote control, and power grid management. VHF and UHF radio frequencies over very long range communication ability, and with the fastest transmit / receive hundreds of thousands of meters and may be polled or report-in every day on a single radio channel.

Wireless SCADA and Telemetry use radio modems to connect The Master Controller to the Slave Device.

A wireless Slave Device is a wireless RTU, and it keeps the system efficient and save costs, and make easier to install and update.  A Wireless RTU with built-in Slave features such as Raveon’s RV-M21 Tech Series telemetry modems be a Slave Device in a remote area.

The RV-M21 RTU has a GPIO interface to make it a Slave Device:

A M21 smart radio modem is a innovative Wireless Remote Terminal Unit (RTU)

The M21  combine the functions of an RTU with a built-in data radio rodem to provide a cost-effective and powerful solution for various industries.

The M21 is available with 1-5 watts RF output in VHF, UHF and 220MHz bands.

The General Purpose IO (GPIO) pins can be controlled with MODBUS commands.

GPIO pin are configurable as Digital input or outputs, Switched open drain outputs do enable relays, or Switched DC power output to drive, lights, relays, valves, or any DC powered item.

For License Free RF band use, the RV-M22  is a license free 900MHz RTU or serial data transceiver.

The communication range is typically 1-10 miles, or 20 miles in open areas.

The miniature RV-M22 is available in the 902-928MHz ISM band.

The RV-M21 utilizes the Tech Series front panel has a myriad of IO options and some panes can be used as Wireless Remote Terminal Units.  For wireless SCADA and wireless RTUs, order the RV-M21 with the GPIO interface or the Flexible IO (FIO) interface.

Raveon’s Unique Features for Wireless RTUs

  • Low Cost. Raveon’s Tech Series of wireless data modems are the most economical on the market.
  • Easy to use. Plug-in, Turn-on, and GO. Transmit data in = Receive data out.
  • Remote status monitoring including DC voltage, packet error statistics, modem “up time”, and receiver signal strength.
  • GPIO (General Purpose IO) interface options to have the radio modem be your RTU.
  • FIO (Flexible IO) interface with pins that can be configured as digital inputs or digital outputs.
  • Remote “PING” From any M7 modem, a user may send a “PING” to any other M7 data radio modem to find out the link signal strength. This allows quick diagnostics, easy antenna alignment, and reduced site visits.
  • Wide input voltage with high-efficiency switching voltage regulators. Most all allow input voltage from 9 to 30V DC.
  • Capable of store-and-forward repeating operation. Any M21, M8, M7, M6 radio modem may be configured as a store and forward repeater.
  • Small size. Extruded aluminum enclosure is small, and very rugged.
  • Programmable over-the-air data rates. You can choose how your system will work. Set the OTA data slower for extended communication range, or set it fast for lowest latency. Your choice.
  • MODBUS messaging. The GPIO and FIO interface IO pins can controlled with MODBUS RTU messages.

Master Controller Wireless Base Stations

M7

M7s Series Wireless Modems

The Master Controller in a SCADA system can utilize an M7 radio modem to communicate with the remote Wireless RTUs. These can be used as the base staion, and can be used as a repeater.

Ideal for SCADA and Telemetry applications.  M7 radio modems have many features for telemetry systems: 1/2-5 watts of RF output for private radio networks in the 150-174MHz, or  450-480MHz bands (other bands available).

A communication range of 5-60 miles, fast T-R switching time, store-and-forward repeater capability, AES data encryption, and RS232/422/485 interfaces available.

Perfect modems for SCADA, remote control, telemetry, mobile-data, MODBUS RTU communications, and AVL applications.   More Info…

RV-M21 Tech Series Telemetry modems with Slaves

The Tech Series modems comes with multiple front interface options. User for serial data communications, or wireless SCADA and telemetry RTU.  Wireless modems can be used to tap into an existing SCADA network and pull data out, or push data in.  These smart modems are tactical and work with the existing operation of a MODBUS or ProfiBUS-type system. They reliably pass messages with these protocols, and if you need to route the data to a variety of various servers and base stations, a smart network gateway can also be used. 

Telemetry Slave options with the GPIO and FIO interface. Reliable secure wireless data modems in VHF, UHF, and ISM bands. Send receive raw data, or utilize MODBUS or WMX messaging to control and monitor remote devices.

The Tech Series radio modems are the most flexible RF modem architecture on the planet. They have a myriad of IO options:

  • RS-232   UART Serial. Any baud rate you want to use.
  • RS-422  UART 2-wire Serial. Any baud rate you want to use.
  • RS-485  UART 2 or 4 wire serial. Any baud rate you want to use.
  • USB   to plug into a PC.
  • GPIO   General Purpose IO (Digital IO, Analog input, voltage reading, Switched DC out)
  • Analog   Analog radio for voice communications.
  • FIO   Flexible IO with configurable digital inputs and outputs.

For many SCADA systems, the radio modem can be used to communicate with the remote terminal units in very remote areas.  These radio modems are very long range, reliable, and secure.

 

RV-M8 OEM modem modules for your RTUs

The RV-M8 is an OEM radio modem module used to communicate over many miles. You can utilize and OEM Radio Modem Module inside of your remote devices to create a Wireless RTU.

1.2 to 5W RF output power, with communication range 5-60 miles (VHF) and 3-40 miles (UHF).

Use this module to manage your things like valves, pumps, relays, and lights.  Read the status of them or input switches or input voltages.

Available in VHF, 220MHz, and UHF RF bands.

We will work with your team to make sure this product works perfectly with your system.

Miniature Long Range Radio Modem

Raveon’s M6 data radio modem is a miniature ultra-low-cost radio modem for use in your products.

It is available in various bands:   VHF, UHF, MURS, and 915MHz License Free ISM

It is easy to embed inside your products to communicate for many miles.
The M6 in VHF and UHF bands can communicate for 1-30 miles, depending upon the terrain. The ISM band version utilized LoRa long range RF technology, and can reliably communicate 1-20 miles.

The M6 OEM module can be used for:

  • Sending and receiving UART serial data.
  • GPS tracking and data comm.
  • Processing MODBUS messages and controlling IOs.
  • Reading meters, controlling valves, controlling pumps and lights, reading sensors, transmitting switch status,
  • Measuring angle and vibration with its built-in accelerator.
  • Raveon is always willing to add communication protocols or messages to OEM modems to make them work perfectly with your system, and save you money.

SCADA Software

Raveon has a free open-source software app for testing and working with SCADA, Telemetry, and MODBUS products.  It is called SCADA Comm User (SCU)

This SCU program is designed and built for experimenting and testing MODBUS devices such as Raveon’s Tech Series GPIO and FIO wireless RTUs. If you would like to work with the source code, it is open to Raveon’s SCADA users, so please contact Raveon sales department.

Wireless RTU

 The Tech Series has a GPIO version of the RV-M21 and RV-M22 series radio modems. They are ideal for SCADA and telemetry.

The GPIO connector on the product is a Phoenix Contact 1829387 DFK-MC type connector.

Wireless technologies is a cost-effective way to provide remote and localized control and transfer of live and historical data. Implementing a wireless infrastructure is beneficial to new production sites. It drastically reduces installation cost and time, reduce permit costs, and eliminates wiring, trenching, and running conduit.  It minimizes wire failure due to degradation and other environmental factors.

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