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Hi bahiaml Also give rising edge command to PTO set profile when you are using PTO move. Alos use the PTO set profile block while stopping the PTO. Below i am attaching the example how to configure it. Check it and do let me knowVisiLogic Project.pdf

The idea of using index pulse with high speed input is good but there is another limitation to this that is i want to take action on the rising edge of the index pulse. HSC interrupt will take action on falling edge. Then also i will try on falling edge if it works better i will use it that way. Input Interrupt are very useful for motion application. E.g i am doing a cut to length application where i have one stepper motor with drive connect to v130-j-tr20. I am pulling a plastic film which has a mark on it. i have to stop on the mark. The application works fine on slow speed but as i start increasing the speed the mark starts shifting this is because of the scan time. If if have input interrupt we can stop the motor on the rising edge of the mark. So its necessary to add such hardware features to PLC.

Can any body help me in how to create a input interrupt routine in unitronics plc. Other PLC like AB , Siemens , Omron , Delta, has this type of routine. The input subroutine is immediately triggers on the rising edge of the input. Application. I am using a encoder with marker pulse. I am using this marker pulse to reset the encoder counts, but at the same time i need to reset some other MI's of the plc. I am also using the HSC reload option to generate _HSC interrrupt. At every HSC interrupt i am storing the current valve of the encoder to a series of MI. E.g 1st interrupt MI0 , 2nd Interrupt MI1 and it goes on till it reaches to a certain point. When i get the marker pulse i want to reset the encoder value and at same time all other value store in the series of MI, MI0, MI1, till may be MI10. i am using a 36000 ppr encoder so i cannot depend on scan time to reset these MI. I tried it but then i miss the 1st two MI readings. The marker pulse is so small that sometimes its doesn't come in the scan time. Encoder speed is 5-10 RPM. If i get the option of input interrupt routine then i will configure the marker pulse as input interrupt and reset all MI when marker triggers.

Please go through the attached filePLC 16.1.15.vlp

Also check the parameters of the temperature controller like slave ID, Baud rate , Stop bit , parity and modbus address

Can i use the read immediate input as high speed counter. Is it necessary to use read immendiate input in _Interrupt 1.25 mS or i can use it in a normal subroutine.

Dear friend I have done no mathematical calculations in the program. In PTO configure block the unit = 1 and pulse per unit is also = 1, so the PTO read status should only show the number of pulses which are been genrated.

hi I am using a V350-35-TR20 plc and using the PTO function. In Unit and Pulse per Unit = 1 I am using the PTO move with Relative Position control. Every thing is working fine and the stepper motor is working as per my logic. But in the PTO Read status i am not geting the current channel position correct. it is showing + - 12 pulse extra. sometines it shows 12 pulse extra or sometimes it shows -12 pulse. Can any one suggest some solution for this.

Thank you , i will check the same with your program and let you know soon

Hi I am using a V350 - j- TRA22 PLC. I want to use remote operater with 3 computers. i am using a ethernet port with plc 1. 1st computer is in the control roon from there the operater will see the status of machine and control it. 2. 2nd is in the quality control roon from there the quality person will just see the status of machine and quality related parameters (no control from there) 3. 3rd is in the production managers cabine form there he will just see the status of machine and production related parameter ( no control from there) The 1st computer will be connect to plc 24X7 , but the other 2 will be connected to the plc as per there requirement. You can also suggest any other good option for this application.

Hi I want to connect 2-3 Remote operator simultaneously to V350 plc. I tried it with socket 1 port 20256 but only one Remote operator gets conneted at a time.

Hi Uni Guru As i am using V130-j-TR20 where i get 3 HSI shaft encoder option, if i connect the the z to 2nd counter then i only can connect 2 encoders to the plc or may be only one if i want to use the z ( index) for 2nd encoder also.

I am a regular user of unitronics PLC and i have developed many application with the help of unitronics PLC. While using a HSC counter i always feel there is a limitation and if any one can help me in this it would be thankful 1. Unitronics HSC counter with AB phase counting does not have external reset option. so i find problems while doing a increamental encoder application for 360 degree cam function. 2. The HSC also does not support a external or internal Start/Stop option. So it make difficult to pause the counting for a while if necessary for some applications. 3. The HSC also does not support the up/down counting option. If any body having any good idea to over come these problems, please suggest me.

Hi how many volt SMPS are you using. I assume you are using 24v SMPS Stepper driver Vexta UDK accepts 24v pulses or 5v pulses. if 24v pulses then connect HSO-0 to step- and connect 24vdc to step + if it accepts 5v pulses connect HSO-0 to step - and connect 24vdc with 2.2 k ohms resister in series to step + check this may solve your problem