DescriptionThe D8000 series USB interface modules are a family of complete data acquisition modules for use in process control systems. The analogue input models can measure process signals such as thermocouples, 4 to 20 mA current loops, and discrete contact closures. The analogue output models can generate voltage or current signals for controlling annunciators or valves. The digital input and output models can sense the state of remote digital signals or control solid state relays. Complete data acquisition systems can be created with ease with the D8000 modules and a host computer.