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Hello everybody peeps, Todays challenge is to get this PWM going on Y0. I know that we can do this 2 ways. I am wanting to do it via Parameters and the HIOEN function. but despite following the PWM guide I cannot get it going on simulation, Y0 is not turning on at all. I have set parameters as per attached, and did the same code is on the guide, but still nothing. the code in the guide goes in error at the moment. Let me know your thoughts. Many thanks.

Hi there, I'm working on a project on a cupcake machine. I have to throw empty wrappers so I'm using a photoelectric sensor to sense the empty cupcake and after 2.5-sec air solenoid activated with delta PLC to throw that empty wrapper. The thing which I want to discuss here is that I want to operate my solenoid with pulse means when the empty wrapper comes to the solenoid through the conveyor then the solenoid gives a pulse of air so the upcoming filled wrapped will not disturb with this air. how Should I program my delta plc it is a transistor base. Can I use PWM? Best Regards, Asad Raza

Hello everyone, I am trying to program a PWM output on Machine expert 2.0. After compiling, I am getting this error: C0138: No matching FB_init method found for instantiation of PWM_M241 Does anyone know how to resolve this? Thanks

Hello all, this is my first post. I am using an AB Micrologix 1400 (1766-L32BXB Ser C FW 21). I was trying to generate a pulse train using the PTO instruction. I have modified PTOX funct. file. The ladder is just a simple XIO followed by PTO, (The Quick Start ladder from 1766-RM001). When I looked at the output waveform on my oscilloscope, I noticed that it wasn't a square wave. I decided to run it at several different frequencies to see how the wave form would change. At 10Hz i got a square wave. As I increased the frequency the falling edge became sloped and almost horizontal. Is this how the output should behave? The data sheet indicates a max frequency of 100kHz, but at frequencies over 150 Hz. The wave form looks like the output of SMPS.

Hello, I make a project where I should control temperature for thermoplastic extruder. I read for this type of process a two position controller is enough but I want to use a PID controller. I have values for P,I,D,Tf and I applied Z-transform and I have a numeric controller which is implemented through structured list. I want to control heating element with this PID but my problem is I don't have an analogue output module just a digital output module(OD 212) and now my question is : How I can( if it is possible) to control duty of PWM with output from pid? (I have a CJ2M processor)

Hello, I want to make an application to control a heater element . I have a thermocouple(k) , I read value from it with ad04u module and with od212 module I want to control the heater element with PWM. Now that's my problem , I don't know how to configure in cx-programmer to put on output from od212 pwm signal. I read in documentation about Pwm but is a poor explication about this problem. (I use CJ2M processor). What else conditions must to check for I can work with pwm signal?

Hi, I want to send impulses to the actuator by PWM (Pulse-Width Modulation). I have 2 functions which are using PWM with the same output, but in that fact, actuator doesnt move. If I have one function PWM, the actuator moves. Is there any connection with one PWM function which introduce the noise to second one? Is there any method to use two functions of PWM. Thanks in advance.

Design Improvement Ideas : I currently use a 24v DC slipping brake (either Clarke or Warner) to prevent a reel of film from over-rotating - With Previous motion controllers - i have used timers at first then progressed to using a Virtual axis and a switch to make my pulse from NX- Digital output card to a Solid State Relay (PSWITCH command for anyone familiar with TrioBasic) and this has worked pretty well. I have the same physical setup on a new piece of machinery but am now using NJ and Sysmac - Have used a TOF and TON in inline ST to control brake and it sort off works - brake can feel a bit lumpy and can chatter and bounce a bit adn am worried about the reliability when the machine is running and the controller is doing more. (brake cycle time t#10ms and tried at 100ms also) I did try using the Time Proportional Out FB - but this was far worse than the above. I think i will try my luck at created a new virtual axis e.g. Rotary Mode - min 0 max 1000 Run with MC_Move_Velocity when Machine is running and use an MC_digital Cam Switch to create my output Pulse. I am new to the Forum and trying to get more involved with others rather than working in Isolation - so wondering if anyone has any suggestions or thoughts or have done anything similar in SS? Thanks in Advance,

Hi everyone, im using CJ1M CPU21 ... I want to ask how to disable origin search function before I using PWM(891) instruction? This is because i noted that both PWM output 0 cannot share with the origin search function.

So, hello all. I'm new in Omron PLC. Using: CP1L-EM controll + CP1W-TS102 (x3) Problem: I have PT-100 sensor outside, so, cause i live in Russia, we have now -3 ... -5 under 0 =) What i've done: I read the manual W462. Made some ladder (attached). When i have temperature outside - i have value &2 or close to it, what means 0,2 degrees (i use Celsius) But when the temperature go down, i have &65535 and my PID go crazy. So, i understand that it's 2 complement's but... HOW I CAN GET THE VALUE IN REAL??? (+2,0 or -5,3 and etc....) Okay, go across the manual, what we see? (pic2) We see the instruction for CP1L with PT-100 in range of -200...650. Ok, perfect, what i need... but... I HAVE NO SBB(051) INSTRUCTION IN MY CP1L! So, guys, i need ur help with that. I need negaitve temperature in real with sign for using it in scaling, pid and HMI via NB-series panel. Sincerely, p001p

So, hello all. I'm new in Omron PLC. Using: CP1L-EM controll + CP1W-TS102 (x3) Problem: I need to regulate the valve with motor drive. You can meet the same in heating system for control the temperature of water. Logic is simple, - low temperature? - open valve step-by-step - high temperature? - close the value step-by-step I always use PWM regulation, but in Omron PWM only for encoder (srsly, i don't need 10k impulses during short period of time, i need just several impulses during the time) So, i decided to use TPO. The input calue for TPO is output value from PIDAT. (W451 manual, description of TPO function, example) What's the problem? 1. I need to make difference time between impulses. Look here: I have 55 C temperature of the water, but i need 80 C, so i need impules for 8-10 sec duration, but when the temper close to 75-79 degress i need the impuls 1-2 sec duration. And, as i read, TPO cant do this, right? Just constant duration in 1 TPO instruction, or use several TPO instruction. Other situation, i have 80 degree Celsius, but i need 50 C, so i need to close the valve. But i have only 1 TPO! So i need to check the difference beetwen SP (set point of temperature) and PV (process value) and if it hegative - go to PIDAT #1, which connected with TPO #1 and close the valve (SP-PV need to be around 0) If i have positive value (SP-PV) i need to go to PIDAT #2 wich connected with TPO #2..... Srsly? I cant make the measure between -100 .... 100 for 1 TPO function and use 2 digital output? I know that 0...10v regulation is better, but i have that i have =) Sincerely, p001p

Can we interface the arduino sensors like HC-SR04 an ultrasonic sensor that gives a PWM as output.Can it be read on PLC by any means ? How we can read the Discrete values of Ultrasnonic sensor on PLC ? any one who knows Kindly guide I'm working on Fatek PLC FBs 24 MAR-AC

I new to the Cx-programmer. I'm facing a problem where i need make the servo motor go to certain direction and stop at the direction until other signal is sensed. Is there any instruction which can be used to do the ladder diagram? is it using PWM instruction? Is my servo motor (sg90) suitable for PLC ? do i need motor driver for this servo motor? or i just have to connect to the PLC 5v ? Im using CJ1M CPU21 PLC module. Im doing a sorting system project that use the servo motor to slide the item to certain angle.

I am running unitronics v280, v200-18-e5b, and io-d16a3-to16. I am wondering why the high speed outputs are different between the snap in and the expansion modules? In the hardware configuration the snap in asks for 3 operands and the expansion asks for only 2.