About the UR-9CH
The UR-9CH is a CPU module intended for the Universal Relays series. Produced by General Electric Multilin, the module supplies the relay with computing power by means of algorithms, logic frameworks, and raw computing abilities. The module purchased also determines what software the relay is equipped with, with some modules offering Ethernet capabilities, IEEE 1588, Parallel Redundancy Protocol, or some combination of these elements.
The module is one type (CPU) of a series of modules intended to replace, upgrade, or provide new capabilities to the Universal Relays series; other modules include CT/VT, power supply, contact input and output, transducer input and output, and inter-relay communications. The UR series has particularly lengthy model numbers due to the fact that each segment corresponds with one of the modules and indicates whether or not the relay possesses the module (and if so, which specific module variation it contains). Users can further examine their unit’s user manual for more information on their relay’s part number.
The CPU handles a variety of input and output signals and helps process communications over various networks the relay is connected to. The CPU also enables the function of some ports, such as the RS485 port located at the back of the relay.