Visilogic, V700 and V200-18-E6B

[Geir]

Hi, I'm new to this and I have questions :

I want to send pulses 0-5000Hz , 50% Duty cycle and read them back to my high-speed inputs.

I also need something like arrow up/down to control the frecuency and duty cycle.

Any ideas ?

Regards Geir

[Cam]

Look at the pwm output in the help file.   Frewquncy and duty cycle can be controlled by push buttons you adding on the HMI 

[Geir]

Hello again.

How can I connect the V200-18-E6B PWM output to High speed input on same module ?

Anyone have a drawing ?

Regards Geir

[Joe Tauser]

What voltage and/or device are the PWM outputs connected to?  You've got to pull them up to 24V to run them back into the high speed inputs, which may or may not be possible.

Joe T.

[Ausman]

Joe, I think he/her/person/carbon entity (oh gosh I hate PC getting so silly of late) is essentially wanting to loop  the plc outputs back to the inputs.

cheers,

Aus

[Joe Tauser]

I found this on the web-

+V is 24 VDC

Resistive load is 2.2 K.

Output pulse goes to I0

Sensor output is the npn HSO on the -E6

I'll leave the rest of the connection details to you as an exercise.

This will work in stand alone mode.  If you connect something else to the "Output Pulse" without disconnecting the PLC input it probably won't work as impedance matching of two parallel devices with different threshold voltage levels is damn hard. 

Joe T.  

[Geir]

Hello.

I got the high speed in and outputs to work and they are connected.

What I see now is the following :

When I set up the PWM with value 500 on frequency and value 500 on duty cycle, it shows on the oscilloscope 50 Hz as it should (IMG_0878.JPG). 

But, when I change the time measurement on the oscilloscope to 1 sec per div, I get the following picture (IMG_0879.JPG)

Can anyone try to explain this please ?