ELPRO 905U
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Easy to Use
The ELPRO 905U wireless I/O range is easy to use and simple to install. The modules are completely integrated, including micro controller, input/output (I/O) circuits, radio transceiver, RS485/232 serial port and power supply with
battery backup facilities. Each module is housed in an industrial strength extruded aluminum case, with plug-in terminal
strips for ease of wiring connection and maintenance.
905U Wireless I/O Modules
The 905U modules provide a wireless radio link for discrete (switch contact), pulse/counter and analog signals. The 905U also has a RS485 multidrop serial port, for communications to I/O expansion modules.
105S Serial I/O Modules
The 105S serial I/O modules communicate via RS485 multidrop. RS485 is a method of transmitting between many devices using a common twisted pair wire. The maximum length of the wire is typically 4000 feet (1200 m). 105S modules can be used as a dedicated twisted-pair I/O system, or as I/O expansion for 905U modules. Each 905U can connect to up to 31 serial modules. This combination of wireless and serial I/O provides a powerful I/O network for factory automation and process instrumentation.
Two-way Communications
The 905U internal radio is a transceiver - a transmitter and receiver. Because the 905U can communicate in both directions, each module is capable of both input and output signals. Both monitoring (input) and control (output) functions are provided on 905U and 105S modules.