The SEC 3500 OI Panel drives and masters the SEC 3500 Modbus 485 Digital Gas Monitoring Loop, based on the loop-attached SEC 3100 Digital Gas Transmitter
slaves. It draws information from all SEC 3100 Digital Gas Transmitters on the loop into a single location, where all information is accessible and configurable. In addition, it adds features for controlling separate SEC Modbus 485 Relay modules, allowing a central
coordinated command and control center for a given loop.