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DVP PLC Read Pressure from 0 -10vdc analog input , pressure convert psi to bar and ISPSoft 

Motive Automation
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DELTA DVP PLC Analog Read 0-10vdc and
Display Pressure 0-10bar from 0-10vdc ISPSoft
1 bar = 14.5038 Pound per sqr, inch PSI
0-10vdc Pressure Sensor Analog input Calibration
-------------------------------
All are Proportional Data
Step1) 0-10vdc, 0-10 bar, 10x 14.5 = 145 PSI
Step2) 0-10 = 0-10vdc
0bar = 0 v
10 bar/ 145PSI = 10vdc
Step3) 10vdc = Digital RAW data = 2000 Max Raw Data
Step4) Pressure Per/ Digital RAW Val = 10/2000 = 0.005, unit Pressure
Digital RAW Val per/ bar = 2000/10 = 200, Digital Unit
Step5)
Calculation1## Actual Pressure= Digital RAW input or Source Val x 0.005
Calculation2## Actual Pressure = Digital RAW input or Source Val/200
pressure = RAW Data x .005 Pressure Unit, Float Value
Pressure = RAW Data / 200 Digital unit
We use analog output 0-10vdc for pressure ref.
Ch1 = Connected pressure ref
Ch5 = Analog output 0-10vdc
0 digital val = 0vdc
4000 digital val = 10vdc

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17 фев 2024

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Комментарии : 2   
@sharifhossain8830
@sharifhossain8830 4 месяца назад
Digital Raw data কি?
@MotiveAutomation-PLC-SCADA
@MotiveAutomation-PLC-SCADA 3 месяца назад
The digital raw value of a PLC (Programmable Logic Controller) analog input refers to the raw binary or digital data obtained from the analog-to-digital converter (ADC) circuitry within the PLC. This raw value is typically a numerical representation of the voltage or current level measured by the analog input channel. PLCs often use a range of values, such as 0-4095 for a 12-bit ADC, to represent the analog input signal. The actual voltage or current level is converted into a digital value within this range. This digital raw value can then be further processed, scaled, or used in control algorithms within the PLC program. For example, if the analog input voltage range is 0-10 volts and the PLC ADC has a resolution of 12 bits, the digital raw value could range from 0 to 4095, where 0 represents 0 volts and 4095 represents 10 volts. The digital raw value of a PLC analog input or output depends on several factors: Analog-to-Digital Converter (ADC) Resolution: The resolution of the ADC determines the number of digital steps or values available to represent the analog signal. For example, a 12-bit ADC can represent the analog signal with 2^12 (4096) digital steps. Signal Range: The range of the analog input or output signal is also important. For instance, if the analog input signal ranges from 0 to 10 volts, and the ADC is 12-bit, each step would represent approximately 10vdc or 20mA 4096 4096 10 ​ volts. Scaling: PLCs often allow for scaling of analog signals. This means that the raw digital value obtained from the ADC can be mapped to a different range of values, such as engineering units (e.g., degrees Celsius, pressure in psi, etc.). Without specific details about the PLC model, the resolution of the ADC, and the scaling applied, it's challenging to provide an exact digital raw value for an analog input or output. However, once these details are known, it's straightforward to calculate or interpret the digital raw value.
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