ICP DAS USA I-7088 User Manual

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ICP DAS USA I-7088 User Manual Manual pdf 4 page image

I-7088 User Manual, Rev: A1.041. IntroductionThe I-7088 has 8 PWM output channels and 8 counter inputsand can be used to develop powerful and cost effective analogcontrol systems. PWM (Pulse width modulation) is a powerfultechnique for controlling analog circuits that uses digital outputsto generate a waveform with variant Duty Cycle (The fraction oftime that a system is in an "active" state) and frequency to controlanalog circuits and can be used to control the position/speed ofmotors, dim the brightness of lamps, control the speed of fans, etc.The I-7088 will also automatically save the counter value toEEPROM if the power supply is interrupted or lost. Refer toSection 1.7 for details.Features Automatic hardware generation of PWM outputs withoutsoftware intervention 1Hz ~ 500KHz PWM output frequency with 0.1%~99.9%duty cycle (Refer to Section 3.2) Software and hardware trigger mode for PWM output Individual and synchronous PWM output.Using software trigger mode, you can set the configuration forall PWM channels then trigger them individually or all ofthem at the same time. Burst mode PWM operation for standby DI channel can be configured as either a simple digital inputchannel or a hardware trigger source for the PWM output.Software TriggerPWM (Continuous Mode)I-7088MCUDI / Hardware TriggerPWM (Burst Mode)