IS215UCVEH2AE VMIVME-7614-132350-017614-132 D Analog Signal Filtering

IS215UCVEH2AE VMIVME-7614-132350-017614-132 D Analog Signal Filtering

IS215UCVEH2AE VMIVME-7614-132350-017614-132 D in the field input contact after adding a timer, timing time according to the contact jitter and the system to determine the response speed, generally in a few tens of ms, so as to ensure that the contact is indeed stable after the closure of other responses. Analog signal filtering can be used programming methods, on-site analog signal sampling 3 times in a row, the sampling interval by the A/D conversion speed and the analog signal change rate decision. 3 times the sampling data were stored in the data register DT10, DT11, DT12, when the last sampling is over after the end of the use of data comparison, data exchange commands, data segments to compare the instruction to remove the maximum and minimum values, retaining The intermediate value is stored in the data register DT0 as the result of this sampling.

IS215UCVEH2AE VMIVME-7614-132350-017614-132 D Improve the reliability of the signals read into the PLC field can also be used to control the system’s own characteristics, the use of the relationship between the signals to determine the degree of confidence in the signal. Such as liquid level control, because the size of the tank is known, liquid inlet or outlet valve openings and pressure is known, in a certain period of time the height of the liquid change in the tank in what range is known, if the level meter sent to the PLC data and the estimated height of the liquid level is a large discrepancy, it may be judged to be a failure of the liquid level meter, notify the operator to check the liquid level meter through the fault alarm system.