The 505U-K has an internal 869MHz radio transmitter which operates on a license-free radio band in Europe. The 505U-K has an operating range of up to 5km. It is suitable for monitoring in utility industries such as electricity, water and gas; and is also a cost effective solution for short range applications in factories and plants.
Mode of Operation The 505U-K is compatible with the 105U/869 range of wireless I/O products - 105U units may be used to output the process signals, or act as a wireless interface connected to a PLC, DCS or PC. The 505U-K transmits the value of its input signals whenever the signal changes, or after a pre-configured update time. Each transmission message includes error-checking to confirm the validity of the message. The 505U-K can be configured to repeat the transmission several times to ensure that the transmission is received correctly. More than 10 000 505U-K units may operate together in a single system.
Because of its battery power supply and weatherproof case, the final installed cost of the 505U-K radio telemetry module is very low, making it a cost effective solution for even simple plant monitoring applications.