Rievtech PR-6DC-DA-R - Pulse Width Modulator (PWM)

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5.5.28 Pulse Width Modulator (PWM)
Fashion: Classic:
Short Description:
The Pulse Width Modulator (PWM) instruction modulates the analog input value Ax to a pulsed digital
output signal. The pulse width is proportional to the analog value Ax.
connection
Description
EN
A positive edge (0 to 1 transition) at
input En enables the PWM function
block.
Input Ax
Analog signal to be modulated to a
pulsed digital output signal.
parameter
A: Gain
Range of values: +- 10.00
B: Zero offset
Range of values: +- 10,000
PT: Periodic time over which the digital
output is modulated
p: Number of decimals
Range of values: 0, 1, 2, 3
Output Q
Q is set or reset for the proportion of each time
period according to the proportion of the
standardized value Ax to the analog value range.
Parameter PT
The periodic time PT can be provided by the actual value of another already-programmed function:
Analog comparator: Ax – Ay
Analog trigger: Ax
Analog amplifier: Ax
Analog multiplexer: AQ
Analog ramp: AQ
PI controller: AQ
Analog math: AQ
Data latching relay: AQ
Up/Down counter: Cnt