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kikitron

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Everything posted by kikitron

  1. Hi to all, I have one question. I made simple program linearization for analog input 4-20mA to read pressure sensor 0-250bar. I can read pressure from display without a problem. Now I would like to add if pressure is 180bar or higher it has to activate digital output O 0. I add this function but its not working. Did I use wrong function? Analog_input_test_4-20mA.U90
  2. Hi, A have one question. I control analog output 0-10V with potentiometer on analog input 4-20mA. Is it possible to add a switch that I first set the value by potentiometer and when I press switch ON panel I get seted vaule on analog output ? Now is working directly when i move potentiometer a got value 0-10V on analog output. AI-O_test.vlp
  3. I have fixed resistor on potentiometer like on Picture below. I calculate it 1082 Ohm to run from 4,07mA to 19,9mA on extension module IO-AI4-AO2 (analog input). I recorder MI values: 0 = 835 5= 1390 10 = 4075
  4. I tryed with different values of linearization on analog input but with no luck. I would like that when I have potentiometer in the middle on scale 5 analog output needs to be 0V. Now 0V is on scale 8. I have less rotation adjustment from 0V to 10V (scale 8 to 10). And I have more rotation adjustment from 0V to -10V (scale 8 to 0). Linearizarion is working ok only that 0V is not in the middle of the potentiometer.
  5. Another question about potentiometer. To regulate analog output +/- 10V Im useing potentiometer 4,7kOhm + resistor on analog input (4...20mA). Potentiometer scale is 0-10 (pic in attachment) and now I have problem that my 0V is on scale 8 and not 5. Is it possible to calibrate somehow that my 0V will be in the midle (scale 5) ? +/-10V is now working ok but my 0V is on scale 8 and I regulate 0..10V from scale 8...10 and 0V...-10V from scale 8-0.
  6. Perfect thanke you for fast answer and help
  7. I have another question: Is it possible to reset somehow all my MB buttons to state 0 when I turn on the PLC ? Now If I push button I got 1 and if I switch off the PLC and switch it back on I still have 1. Now I would like to reset all my MBs somehow if I forgot to turn it down to 0.
  8. Perfect thanke you its working Is it possible to do it through the panel to if I add a button on display ?
  9. kikitron

    Analog input to Digital output

    Now I wrote linearization with program and its working perfect Now I have second question: What happens if I use 2 or more analog inputs (sensors) and I can write linearizaion program only for the one. Because if I use for first sensor SI 80 - 85 to set the (x,y), what SI xx can I use for secon one or third ... ? Analog_input_test_4-20mA_ladder.U90
  10. kikitron

    Analog input to Digital output

    Thanke you for your answers. Yes I used linearization only for display. #794 is perfect, so I just calculate pressure bettwen 205 and 1023, perfect But I didnt remember to write linearization with program and I will try to write it to.
  11. 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
  12. kikitron

    How to reset "Store direct"

    And final working program test_analog-out_KIki3.U90
  13. kikitron

    How to reset "Store direct"

    I wrote the program by your help of course and its working Only thing that I need to add extra is that if I let the Button_1, cylinder has to go back in home position automaticaly for safety reason. After that the program should be ok for testing in live. test_analog-out_KIki2.U90
  14. kikitron

    How to reset "Store direct"

    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
  15. kikitron

    How to reset "Store direct"

    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.
  16. kikitron

    How to reset "Store direct"

    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
  17. kikitron

    How to reset "Store direct"

    @Flex727 thanke you for your answer and solution. Its working now like it should
  18. Thanke you for your help. Yes JZ20-11-UA24 has +/- analog output and its working 4095 +10V, -4095 -10V Now I have programming problem... but I have to open new topic in right place.
  19. HI to all. I have one project that I need to drive hydraulic proportional valve that has +/-10V. So now I need PLC with analog output +/-10V and I found JZ20-11-UA24 PLC. Will this Jazz be a good to drive my prop. valve or is there another unitronics product that can handle +/-10V output? Thanke you in advance for you answers.
  20. Thanke you for the answer, but in documentation of unitronics JZ20-11-UA24 is written for analog output: 2 12-bit +/– 10V, 4-20mA
  21. HI, I have one project that I have to measure speed of the hydraulic motor 0-10000 rpm. For measuring I would like to use Inductive sensor that has 3kHz switching frequency. http://pdb2.turck.de/repo/media/_en/Anlagen/Datei_EDB/edb_4602050_gbr_en.pdf Is it possible to do with V430 and High speed input?
  22. AlexUT thanke you for the answer. Yes I Will have 1 pulse per rotation. This is my firs project with unitronics V430 and I hope that I Will manage to write a program today. Are there any examples for this kind of aplications that can help me with programming?
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