What functions can be achieved by using HART in the IO modules of PLCs/DCS systems?
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What functions can be achieved by using HART in the IO modules of PLCs/DCS systems?
IO modules of PLCs/DCSs that support the HART protocol can acquire analog signals while simultaneously reading the device’s diagnostic information, status information, and configuration parameters. In addition, it is also possible to set and control remote device parameters. .
1. There is no need to use a handheld controller to modify instrument parameters, which is convenient. 2. Save on cables: for example, with mass flow meters, where flow rate and density can be measured using just one cable; in the case of dual-ball magnetostrictive sensors, level and interface parameters can also be obtained with just one cable.
No need for a handheld controller; it can be modified directly on the DCS control station. Special software would need to be purchased