The new HCS HART Concentrator system from Moore Industries permits up to 16 smart HART-capable transmitters and valves to interface directly with Modbus-based monitoring and control systems. The HCS HART Concentrator system converts a HART digital signal to a serial (RS-485) Modbus RTU communication protocol. The HCS interfaces all HART parameters to Modbus. This includes the ability to monitor primary and non-primary (second, third and fourth) process variables from smart multivariable mass flow, pressure, pH and temperature transmitters; Coriolis, magnetic, ultrasonic and vortex flow meters; radar and hydrostatic level transmitters; and valve positioners and damper operators. The HART Concentrator system also allows monitoring by a Modbus system of HART instrument diagnostics using the Field Device Status Byte data that is available in HART digital information. This includes: smart device configuration changed; primary and non-primary variable out of limits; primary variable analog output fixed; cold start; and field device malfunction.