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ELPRO’s innovative WIB-net communications protocol is specifically designed for highly reliable and secure operation on open license-free radio bands.
WIB-net provides the following features:
Exception Reporting
Transmissions for maximum wireless efficiency. Wireless messages are only transmitted whenever a signal value changes, and immediately a signal value changes, yielding effective real-time performance. Integrity check messages ensure reliable operations of the wireless network as well as signal link accuracy. Exception-reporting reduces I/O traffic to messages of only real significance (whenever a change occurs); and when there is an I/O change, a message is sent immediately without having to wait for poll permission.
Error-Checking with Automatic Retransmission
For high reliability operation. Every radio message has a probablility of corruption, so automatic error detection, acknowledgement and re-transmission is critical to reliable operation. WIB-net will try five times to send a message with random timeputs between messages. After the fifth attemps, a communication-failure status is logged and alarmed.
Listen-Before-Transmit
Wireless operation to maximise the chance of successful message transmission.
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