[Press a button from Ladder code]

Hi s.pratt,

 

thanks for your repliy , i think what you suggest is the answer for me...i will check it

 

thank you.

[Press a button from Ladder code]

Hi,

I have a button on the HMI that doing some actions, I want to press this button from the ladder code, how can i address that button?

there is no a link bit like visilogic. Can I address HMI element by using it's name?

 

thanks,

Moran

[trends]

hi joe,

 

i need to monitor the frequency and amplitude, can i use digital input? and maybe convert the 0V -3.3V square wave to open gnd and display this on trend graph?

[trends]

hello,

i need to monitor a square wave of 3V amplitude and 190 Hz.

can i display this signal on HMI trend graph? what extantion do i need ? analog input ?

i am using V570.

 

thanks.

[Trends]

hello,

 

i need to measure a sin signal 40MHz freq and 3V.

i wand to show this signal on the PLC screen and i need the PLC to monitor this signal and in case of the signal disappear to print a FAIL massage.

 

1. can i measure this frequency?

2. should i use trends?

 

i am using the V570 PLC.

 

some help will be appreciated.

 

thanks.

[measuring pule width]

hi,

thanks for ypur reply,

i did use the interrupt routine, the 2.5ms routine and it is working, i am incrementing a counter and multiplying by 2.5.

thank you..

Moran

[measuring pule width]

hellow,

i need to measure the width of 1 squre pulse . this pulse is 50ms and about 20V amplitude ( which i have to measure ).

i am using V570 and V200, i thought using the V200 digital input and start timer , and when the pulse is at low state stop the timer.

can i do that? how?

if someone has a better idea i will be happy to hear.

thanks,

Moran

[frequency measurment]

hi ,

thanks for your replies,

i will try your solutions,

gabriel, my square wave signal must be 24v? to the I0 of the V200?

[frequency measurment]

Hello,

I am new in plc and visilogic and i need some help,

I need to measure the frequency of a square wave , I tried to use HSC Frequency Measurement FB , but it does not work.

( my square wave freq is slow... about 2Hz)

I connected my signal to I0 of a V200.

Can someone please tell me what should I do to measure the freq of that signal?

Do you have any example?

I am using V570 and V200-18-E2b

By the way:

My square wave should be 24v?

Thanks,

Moran.