621-0020 – Honeywell

Part Details:

Universal Analog Input ModuleModel No : 621-0020Input Voltage : 30 VAC/DCUniversal Analog Input : 16 InputsISSC 600 System.Z208520400193The model 621-0020 Universal Analog Input Module (UAIM) allows you to obtain data from a maximum of 16 analog input sources. It contains an Analog-to-Digital Converter (ADC) that changes the analog signals into binary counts.An analog input module accepts analog signals from field devices connected to the module's terminals and converts the signal data to 12-bit binary values (0 to 4095) via an analog-to-digital converter contained in the module's circuitry. The digital values are stored in a holding register in the module and can be accessed by the Logic Manager control processor via a PULL instruction.