Jump to content
kikitron

How to reset "Store direct"

Recommended Posts

Hi,

I made simple program to control analog outuput +/- 10V by display.

A have two buttons 1 and 2. And if I press button 1 a get analog output +0...10V and if I press button 2 then I get 0 ... -10V (what I set before on display).

Now I have problem if i press button I get setted output but when I release it I still have it.

Now I need that when I hold the button 1 or 2 I get signal from analog output and when I release it, it has to be 0.

I used Store direct function. Is it possble to do that?

I dont need linearization for this project.

test_analog-out.U90

Share this post


Link to post
Share on other sites

Hi to all again.

I have one question about ladder program that attached me @Flex727.

I have only one button and two end switches. I have on hydraulic cylinder to move down manualy and up automaticaly.

When I hold button I need setted output from MI 0 to move cylinder to the end position.

And when cylinder activates end switch 1 then I need output from MI 2 to move cylinder automaticaly  in zero position.

And when he reaches zero position he activates end switch 2 and he stops.

 

Is it possible to do that?

I know how to do it with digital outputs Reset and Set, but with analog outputs no :unsure:

 

 

Share this post


Link to post
Share on other sites

I'm not entirely sure what you are trying to do. You say you know how to do it with Reset & Set - go ahead and do that and post it here. I'll take a look and help you with the analog portion.

Share this post


Link to post
Share on other sites

Sounds like you need to program a small sequence, now that you've told us what you're trying to do.

Your button becomes a START button, which cycles the cylinder through it's movement.  I've attached an example.  I edited your I/O to have one button and two switches.

You don't have to hold the button while the cylinder is moving.  And you can't stop it mid-stroke  - I'll leave that as an exercise for you.

Joe T.

 

P.S. @Flex727 - You know I love my state machines.

test_analog-out_BL_JT.U90

Share this post


Link to post
Share on other sites

Thanke you for the program @Joe Tauser. I Will test the program.

I need in one direction to hold the two-hand control button (safety) and when cylinder reaches 1. end switch then cylinder automaticali returns back until he reache 2. end switch and he stops.

 

Share this post


Link to post
Share on other sites

Here is my test program that its not finished yet, because I need to add function that cylinder automaticaly moves back to Home Switch when I release button.

In my project I have proportional valve that needs +/-10V to drive it and I have 2 valves that has to work together.

1. When I press and hold Button_1 first it has to activate Valve_1 and after some time (timer T0) it has to activate Valve_2 and proportional valve on speed MI 0.

(Cylinder is moveing when proportional valve is acivated).

1.1 This is written in the program in Part 1 and its working.

2. When cylider activates End Switch it has to move back automaticaly until he activates Home Switch:

-  Button_1 is not pressed

- Valve_1 is activated

- Delay activated Valve_2 and Proportional valve on speed MI 2

2.1 This I have to add in the program Part 2 :/

 

test_analog-out_KIki.U90

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...