The MultiCOM 302 module is a protocol converter that provides UPS monitoring under the Modbus/Jbus protocol via RS-232 or RS-485. It also adds an additional RS-232 port in addition to the serial port on the UPS itself, which can be used to connect other equipment such as a PLC or a computer running PowerShield3 monitoring software. This module is compatible with Integrated Building Management System (BMS) applications.
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The following diagram shows how the MultiCOM 302 module communicates across different networks.