The Horner APG HE693RTM705C is a Modbus RTU Master Interface Module for Horner APG 90-30 systems. It provides RS-232 and RS-485 serial connections to act as a Modbus RTU master on a network of slave devices. With part number HE693RTM705C, this module lets a 90-30 controller initiate Modbus commands and poll slaves over both serial interfaces.
