The D6400 analog input module contains seven differential inputs for measuring DC voltages, current signals such as 4-20mA and thermocouple temperature sensors. Each input channel can be configured to measure one of six voltage ranges, eight thermocouple types or a current input such as 4-20mA.
The D6400 performs all signal conditioning, cold junction compensation for thermocouples, a 16-bit analog to digital conversion, linearization and stores the result in a 16-bit unsigned integer format. The unsigned integer data values represent a percentage of the temperature input full scale range.
The data values are transmitted to any supervisory host computer that supports the Modbus RTU serial protocol. See the links to a Modbus scaling example and product documentation below.
[ Datasheet ]
