Industrial Wireless

Responsive wireless I/O from ­Omniflex

May 2019 Industrial Wireless

Radio networks traditionally follow the Master (main station node) and Slave (out station node) methodology for data acquisition. A single master polls for data from one or more slaves, depending on the network size. Polling is inefficient and if the master fails, the network fails.

Omniflex Teleterm M3 Series implements Responsive Wireless with the following advantages:

• All out stations report automatically only when they need to, i.e. change of state or set limits reached.

• Faster more efficient reporting and better control.

• Reduced radio noise.

• Fail over options for redundancy.

• Bi-directional signals.

• Repeating capability for longer range.

Teleterm M3 Series uses licence-free radio bands and is suitable for up to 15 km range. Connect directly to scada or DCS via Ethernet. The system is ideal for short hop radio links such as:

• Reservoir monitoring.

• Tank gauge monitoring.

• Remote pump control.

• Dam levels.

• Plant utility reporting (water, air, gas, steam, electricity).

• Plant condition monitoring.

Each wireless node allows any mix of 12 configurable I/O: digital input; digital output; analog input; and analog output.

Benefits include:

• Low-cost implementation and cable saving.

• No master station required, so no polling each outstation.

• Peer to peer communication simplifies network design.

• Change of state(digital) trigger or cyclic(analog) for communications.

• The network traffic is kept low so only important data is transmitted.

For more information contact Ian Loudon, Omniflex, +27 31 207 7466,,


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