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  • SCADALink RIO900Low-Power Radio RTU Designed for I/O Telemetry and SCADA Applications.

Overview

SCADALink RIO900 I/O Telemetry Radio

The SCADALink RIO900 is designed to operate as Wireless IO, Wireless RTU, and Wireless  Modem System.

License Free 900 Mhz Wireless Point-to-Multipoint Communication

The RIO900 features license-free 900 MHz spread-spectrum radio technology providing a range of up to 20 miles.  Longer range can be achieved with RIO900 nodes configured as Repeaters.

SCADALink RIO900 Point to Multipoint Communications

Wireless I/O Telemetry

A key integral feature of the RIO900 is its wireless I/O signal replication mode (Figure 1).  In this mode, OUTPUT modules are paired to INPUT modules set at the same module address. The RIO900 supports replication of Digital I/O (contact closures) and Analog  I/O (4-20 ma) using AI/AO,  DI/DO, or COMBO-IO Pairs. The RIO900 supports both point to point and point to multi-point I/O replication.

Figure 1

RS232 & RS485 Interfaces

With both RS232 and RS485 interfaces, the RIO900 allows connectivity to field devices without additional interface converters, allowing multiple devices to be multi-dropped on the same COM port.

SCADALink RIO900: RS485 Multidrop

SCADALink RIO900: RS485 and RS232

Modular I/O Expansion

The RIO900 has an I/O Expansion bus which allows interfacing up to 10 SCADALink I/O Modules including the AI4, AO4, DI8, DO8, A8D4, & COMBO-IO  The I/O Modules can be easily bussed to the RIO900 via the I/O bus as shown below:

       

Wireless Modbus RTU Mode

The RIO900 can be configured with a Modbus RTU address and can be polled by a Modbus Master (Modbus RTU).

Low-Power Operation

The RIO900 is designed for Low Power Operation. The RIO900 enables SCADA communications to intelligent field devices with a minimal solar-power system. For applications with ultra low-power constraints, the RIO900 features a Power Off Mode operation where I/O modules and 24VDC Loop power is powerded down when not in use.

Features

  • Secure factory configured network
  • Failsafe operation with configurable time-out
  • 2 serial interfaces (1 RS232 and 1 RS485 serial)
  • Integrated 900 MHz Radio
  • Failsafe Shutdown I/O modules
  • Interoperation with existing SCADA traffic

 

I/O Telemetry

Wireless I/O Telemetry

The RIO900 is designed specially to handle situations where I/O needs to be replicated from on site to another (Figure 1). The RIO900 System can handle both points to point  or point to multi-point configurations.

Figure 1 – Point to Point I/O Telemetry

Figure 2 – Point to Multipoint I/O Telemetry

Sometimes there is a requirement not only for Point to Point to Point but also Point to Multipoint Bidirectional Telemetry. PMP I/O telemetry systems is shown below. Inputs (1) are broadcast to Outputs (1), Analog Inputs (2) are replicated as Analog Outputs (2), Digital Inputs (3) are replicated as Digital Outputs(3).

Virtual I/O Mode

An RIO900 can be configured for Virtual I/O Mode where Modbus Registers of the RIO900 are mapped to I/O values of Virtual Output Modules as shown in Figure 2.  In this mode Remote I/O is mapped to predefined Modbus Register space in the target. This enables Modbus Masters such as an RTU/PLC Master or SCADA Master to use I/O points from an RIO900 based I/O telemetry System without connecting to actual I/O (Figure 3) . This saves on wiring and I/O hardware costs.

Figure 3 – Virtual I/O

Figure 2

Shutdown Systems:

RIO900 for Wireless Shutdown Systems

 

Wireless RS485

RIO900 for Wireless RS232/RS485 Extension

In addition to IO Telemetry Mode,  the RIO900 has RS232/RS485 Serial Communication where RS232 and RS485 serial ports in an RIO900 network appear as a multi-drop serial network.  In the RIO900 System, I/O Telemetry and serial communication can operate simultaneously. Figure 1 shows systems where serial communications can operate simultaneously as I/O Telemetry.

Figure 1

Specifications

 Radio Communications
 Band 902-928 MHz LicenseFree
 Spread Spectrum (North America)
 915-928 MHz (Intl version)
 Tx Power 1 mW – 1 Watt
 Rx Sensitivity -110 dBm (@9600 bps)
 RF Data Rate 9.6 or 115.2 Kbps
 Range (LOS) >20 miles
 Antenna Connector SMA
 Interface
 Input / Outputs 1 RS232, 1 RS232 / RS485
 Serial 1200 – 115,200 Baud
 Electrical
 Input Voltage +9 to 30VDC
 Power Consumption*
 Peak Tx Current(@24VDC) 105 mA
 Rx Current (@24VDC) 21 mA
 Operating Mode
 * – Does not include power consumption of I/O modules
 Environmental
 Operating Temperature -40 to 85 Deg. C
 Certification
 Regulatory FCC,  IC, ETSI
 Hazardous Location Class 1 Div 2, Group C, D T3C
 Suitable for use in: Class 1 Zone 2, IIB, T3

Documents

Manuals & Datasheets

Application Notes

Software

Configuration

The RIO900 GUI is a windows-based application used to configure, save and restore all RIO family device settings. It is connected to the RIO device via serial cable to COM port.

rio-gui-splashscreenRadio

The RIO900 can be configured for wireless data communication operation.

rio-gui-radio

 

Applications

  • High Tank Level Shutdown
  • Water Tank Level Control
  • Pipeline Inlet Shutdown

 

 

 

Ordering

Connection Example

 

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