Description
HPC800K02 Temperature Acquisition and Control System
HPC800K02 in the temperature acquisition and control system, the temperature sensor collected temperature signal is mostly weak analog electrical signals, after a series of conversion, including amplification, analog/digital conversion, cold-end compensation, linearization processing, digital filtering, etc., before it becomes an effective digital signal that can be received and processed by the computer.
HPC800K02 in the plc temperature control system, the temperature sensor collected by the weak millivolt electrical signals can not be sent directly to the plc a / d conversion module, the temperature signal must be amplified by the external temperature transmitter, the cold end of the compensation, linearization process, and then sent to the input channel of the a / d conversion module, converted into a standardized digital signals for the plc to process. In the fx series plc, there is a RTD module fx2n-4ad-pt, which can be linearized automatically and has the function of cold-end compensation.
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