Hello, would display the angle of a blade of a cutter foam, this varies from -30 to 30 degrees. The PLC can send a PWM or variable frequency proportional to the angle. My problem is how i can use a DRO to see this angle.

I could use the RPM DRO but this is on another scale.

I can use a DRO with my settings, or how could see this angle?.

thanks
Renato

Without using an analog to digital converter board or a frequency counter board I don't think you can.

(;-) TP

Hi, i use a ADC converter in my PLC to measure the angle of the blade, the PLC can send a signal to mach of PWM or variable frequency proportional to the angle of the blade.

For example, the PLC sends to mach a PWM of 50% for 0°, 100% for 30° and 0% for -30°.

My problem is how to visualize this angle.

thanks.
Renato

IF the ADC can talk modbus then you can bring the values to mach through the Modbus serial com. other than that you can't read the values .

(;-) TP

Hello, can i modify the value of INDEX? This is for measurement rpm, then i would do

angle=(rpm-1500)*0.02;

Of this form i can obtain -30 a 30 DRO.

thanks
Renato

The index signal is a simple Digital signal it is either ON/OFF , 1/0. There is NO analog value to it to modify.

(;-) TP