P-HB-AIN-12010000 | AIN-120 ABB Analog Input Block

Harmony Analog Input ModuleThe Harmony Input/Output (I/O) System utilizes a variety of input and output blocks to interface process signals to the Symphony ™Enterprise Management and Control System. Analog input (AIN) blocks interface field inputs such as pressure and flow transmitter signals, thermocouple (TC) inputs, and resistive temperature device (RTD) inputs. Analog output (AOT) blocks provide output signals to adjust final control elements such as control valves, pumps, positioners, actuators, etc. These analog blocks along with other types of blocks for digital and control I/O interface and remote I/O communication combine to create a complete I/O system (Fig. 1). Refer to the Harmony Input/Output System overview for a complete system description.