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  1. Doubts on Stack instruction

    Robror posted a topic in CX-Programmer

    Hi there! I recently discovered this forum and I find it pretty useful for sharing and learning about PLCs. The thing is I'm trying to make a Stack using the SSET(630) instruction in a CJ2M PLC. Reading Omron's W340 manual I saw that PLC memory address for the different stack channels is represented as "00010000" to "0001000F". So, in order to set the last stack word address as well as the pointer's address, how do you know those values? Or am I just misunderstanding something? Thanks in advance!   Edit: Solved, the definition of the stack was wrong!    
  2. Hi dear friends, what do i need i order to make a backup from a panelviwe plus 700 and upload it to another? the HMI is communicating to a SCL 5-05  by ethernet by the way. hope you can guide trough this best regards
  3. This is my first post so let me know if there is anything wrong with my post. I am learning Studio 5000 right now for an internship and created a simple project involving a pushbutton and some LEDs. Now I am trying to create an HMI for it in View Designer. My problem now is that I cannot establish a connection to the project because I do not have a physical HMI connected to my plc (Logix 5380). I can't find any way to emulate an HMI module so that I can get it to run. When I emulate my HMI project it tells me "Unable to reach controller TEST" where test is the name of my plc program. I added a module that matched the model in my HMI program (panelview 5510 2715p-t7wd) which I arbitrarily picked at random. But when I go into references and try to add HMI to Controller Path it does not show up (I'm assuming it's because it is faulting in the plc program since it doesn't actually exist). Is there not a way to emulate an HMI or add a virtual HMI to my studio 5000 program that I could connect to from View Designer?
  4. Is there a way to clear a CPU fault on power up without having to connect to software?
  5. I'm trying to send an int over TCP using a MSG Socket,  Compactlogix ==> Arduino Ethernet Shield I have set up TCP communication between two Arduino Uno's using Ethernet shield. I've set up the one as a server, the other as a client. server IP: 192.168.1.21 port 23. If the client is connected it reads incoming data as a byte or an array of bytes. The data between the two has been verified to work. I'm now trying to transition the communications between a compact logix-L32E. I'm looking to send a byte (or int being as there's no byte data type) from the Compactlogix to the Arduino using TCP. To my understanding I need to use a socket create, open, read/write, close. The manual to do this is vague as a step by step procedure. Does anyone have an example code for socket programming? I can open rs500, rs5000, and studio 5000 programs. If I can open a file to use as a reference I can translate it on my own. Any help/advice would be greatly appreciated. 

  6. Pneumatic Air

    Cannonier10 posted a topic in Allen Bradley / Rockwell Automation

    Short backstory: We have a machine programmed with AB that has several banks of air solenoids.  This is an older machine so the solenoid banks are of the older variety.  On each bank there is a pressure switch that is outputted into a Allen Bradley 1734 Safety RIO module.  We are adding new modules to this machine after about 10 years and the Mec Eng. chose Festo CPX banks, but they did not put pressure switches on them. Question: Is it a requirement (OSHA, OMAC, ISO...etc. any of them really) to have a pressure switch for air module?  Or are they used to just make the machine smarter?  The big concern that I have is that the customer will notice that these new CPX's don't have pressure switches to monitor the status of the air like every other bank on the machine, then questions will be asked...yatta yatta...
  7. Hany any you of guys dealt with MDS instruction not completing and being stuck on .EN bit but the motor itself just stopped running out of nowhere? I did read the tech note on this on Rockwell's website. Am mostly wondering if any of you have dealt with this and what you did to fix this.
  8. Hi ! I have a powerflex 525 inverter. I have three phase motor. It is possible to make running the motor like this? If yes how ? Should I change some parameter in the inverter ? Thanks in advance. 
  9. We have been working with PLCs for long time. We used to develop PLC logic, partly test it on an emulator and test the rest on the partly energised equipment. From time to time working with computer software development (C# and JavaScript) I was always looking for something similar to unit testing in the PLC world. As I couldn't find anything at that time I've started developing own automated testing tool. Now we use this tool, which basically simulates PLC inputs in defined actions and checks expected behaviour of internal tags or/and PLC outputs. If it behaved the way we expected, it's PASS, otherwise it's FAIL. We break complex logic into small parts and create unit tests for it. By creating more of these unit tests we can test PLC logic of any complexity. The software called PLC Logic Prover and it's free at https://www.controlx.io Recently, I've been told that there is no point to develop anything new if there are already great tools on the market. Honestly, I didn't do proper research earlier, so I'm here asking the experts. What do you use to test PLC logic? What automated testing tools do you use? Is it using IO simulation or it can test logic by other means? Your replies are appreciated. Thanks, Alex
  10. Good day all. I have an application which is running an Allen-Bradley SMC-Flex and the client would like to get the monitor the current of the soft-starter via an HMI connected to a Delta DVP-12SE. Is the SMC able to output a current and with what communications medium would I use?   Thanks.
  11. Hi guys, since this is a forum for people starting out with TIA Portal, I would like to share with you my course that I developed for the last 6 months.  This course uses a real-life sample application and translates it into a fully functional TIA Portal PLC application.  This course of 2,5 hours consists mainly of video explanations with practical programming assignments to put your newly gained knowledge straight to work.  As a controls engineer, I have over 10 years of hands-on experience with TIA Portal ranging from software development, commissioning and troubleshooting. At the end of this course, you´ll be able to: Structure and program a real-life user application in TIA Portal Download and Troubleshoot a TIA PLC application Program function blocks (FB) using ladder logic Build global data structures using user-defined-data-types (UDT) and data blocks (DB) With the coupon link below, you can enrol for only $12.99 (might vary depending on the country you live in).  The course is normally $99.99, so you get an amazing all-round programming package for almost no money.  So go and check it out  Take me to the Course Now!      
  12. Did you always wanted to get started with Siemens TIA Portal programming, but you were never sure where to start or how to get the best performance out of the platform? Eager to upgrade your TIA skillset from an instructor with over 10 years of TIA experience in the field?   -> Then this course might be just for you! My course "Siemens TIA Portal - PLC Programming Basics" will take you through the steps of creating your very first TIA application - from structuring (very important!) and programming your application, to downloading and troubleshooting your application online.  The course is based on video lectures and is around 2.5 hours long, and consists of 40 lectures divided over 6 main chapters. The enrolment fee is offered at a huge discount at the moment, so take action while it lasts! Take me to the TIA Portal course, I´d like to check it out...   Thank you, and I hope to see you inside the course! Hans
  13. Good day, We are running FactoryTalk View SE (Network Distributed) version 7.00 (CPR 9 SR 6). We have 5 machines: Engineering Station, HMI/Data Server A, HMI/Data Server B, Operator station A and B. The FT Directory is located on Server A. Server A is Primary and Server B secondary. I made some changes to one of the HMI Display's and added a HMI Tag with an alarm.  Tested the changes, everything worked as predicted. I then checked the status of the RSLinx, HMI and Data servers using FT Administration Console, everything was running with full redundancy. I then selected Replicate to Secondary, the replication was successful and Server B rebooted. After Server B finished rebooting, I check the status again. I found that the RSLinx and Data servers started up and was again fully redundant but the HMI Server showed that Server A was active and Server B was Ready to provide service, left it for about 10 minutes but it never changed to Standby.  I rebooted Server B again to see if it will help but it did not. I then stopped the services on Server B, deleted the HMI Project, restored the project from a backup of Server A, but still had the same issue. I am suspecting that there might be an issue on server A because if I open FT View Studio on the engineering station, I get an error stating: Unable to open HMI Server. I have checked all network connections and everything looks fine. Is there someone that may be able to assist me? 
  14. So I'm having trouble writing a FBD within my current program for a slitting line. I need to keep a constant tension on my web as it is being recoiled onto our recoiler. I wrote a simple program using a sensor to read the growing rate of the coil to get a radius and I have feedback on my torque on the recoiler motor. The simplest math for this application without getting into anything too fancy should be Tension(lbs)= Torque(ftlbs)/coil radius. only problem is when its less than a foot then my calculation is thrown off and it actually shows tension goes up until it reaches the one foot mark then it seems to scale correctly. Do I need to scale something else? Any help on this would be appreciated.
  15. TRENDS ARE NOT SHOWING ON MY FTVIEW SE V8 . AS DATALOG MODEL STARTS IT SHOWS UNABLE TO MAKE CONNECTION IN DIAGNOSTIC VIEWER .  YOU CAN CHECK THE SCREENSHOT FOR THE SAME . I THINK DATALOG MODEL IS NOT ABLE TO CONNECT TO SQL DATABASE . WHAT MIGHT BE THE PROBLEM ? Please Help Guys .....
  16. Can anyone explain to me what this would mean in a COP instruction? Source: #N[N187:4]:[N187:5] Dest: #N[N187:1]:0 Length: 20 I am doing a PLC5 conversion to rslogix5000 and some (most) of it has been a nightmare -.-
  17. A little background information here, I am trying to create a moving average so I accomplished it with the code (imaged attached) The problem i am having is the AVE instruction error bit goes true. it leaved me with a result of 1.#QAN  I did some googling and it said this is typically done when dividing by zero?? so i added a NEQ to 0 prior to loading the array. then it happened again. so i put the error bit in front of the FFL so it will stop loading the array when i get the error bit so i can see what values are in the array when it errors out. Has anyone else had this issue and what could you do to resolve it? I haven't had any luck find something that points me in the right direction. Thanks in advance for your help.
  18. Hello there, I am using a Kinetix 5700 drives to control bunch of axis. HW used : 5069-L320ERMS2 GurdsLogix, 2198-S086-ERS4 Servo Drive with MPM-B2152M-M motor and the 843ES-SIP12BA6 safety encoder. All is working fine except I can't figure out how to dynamically change an axis velocity  controlled by a MAG instruction. I have a virtual master axis controlling the velocity and each physical axis is controlled by a MAG instruction with a gear ratio. In my safety program I have SFX and SLS function block used to determine the safe speed limit. The  SLSLimit output of the SLS function block is linked to a SS1 Request of my servo drive. This causes the axis to stop when safe speed limit acceded.  What I'd like to be able to do is to dynamically change velocity (limit it to safe speed if SLS instruction is active) of each axis without having to change the gearing ratios and thus avoid the SS1 safe stop action.  I know how to do that using JOG or MOVE but is it even possible to do that using the MAG instruction? Regards Martin
  19. Hi  I have a MSG instruction which checks the status of the DLR network which I have attached as an Image below Message Type - CIP Generic Class 47 ,Attribute 0,Instance 1,The destination element is a SINT[57] called Services_DLR My question is, how do I interpret the results.  For example Services_DLR[1] is the network status, but I have seen a value of 0 when the ring is okay but I have also seen values of 1 and 4 and don't know what they mean. I assume 1 means ring fault but I do not know what 4 means etc. or  The last active IP goes to Services_DLR[17] but I would not of known this, only the code was wrote by someone else. (Image attached) On page 189 of https://literature.rockwellautomation.com/idc/groups/literature/documents/um/20comm-um015_-en-p.pdf I can see the DLR object but I dont know how this populates my SINT array or what each element is for so if someone could explain or point me to some documentation that can explain it to me, i would greatly appreciate it   Hope I made myself clear, I am new to PLC programming so just looking for some guidance   

  20. I can´t open softlogix 5800

    alejandro.arevalo@comation posted a topic in Allen Bradley / Rockwell Automation

    Hi, I have this problem, when I try to open SoftLogix Chassis Monitor I see this picture, if someone could help me please.    
  21. Hi all,  I am in the process of doing a project for some school work and need to do a SWOT analysis of the latest modular PLCs from Mitsubishi (R series), Siemens (S7-1500) and Allen Bradley (ControlLogix).  So I thought what better way than to ask the people on what they think are the pros and cons of each! Thanks for your responses in advance!
  23. Looking for any and all new industrial surplus and even some used on a case by case basis. Anyone have any questions feel free to email me at contact@trojansupply.com We also have some great deals on any items we have instock we compete on price as we are a small entity. Same day shipping available. 
  24. Hi, I've been having a problem with my Schneider setup, and I can't seem to figure out the problem. I'm using Machine Expert Logic Builder and Vijeo 6.2, and I can't seem to download to my PLC. I can download to my HMI just fine, but my HMI comes back with the message as mentioned in the title. Also when I perform a full download, machine expert comes up with the message "Could not connect to the device for item "xx", selected target system "PLC name" is different from the connected device "HMI name". The weirdest thing is that machine expert shows my PLC just fine, but doesn't show my HMI. I have no idea what to do, as I feel like I've tried everything. The IP range is fine, subnet is fine. The driver in IO manager in Vijeo has the PLC nodename in it, so that shouldn't be the problem either. Does anyone know what to do in a situation like this? Thank you in advance!
  25. Good morning dear All i have a packaging line which works with B&R ... i have an alarm (CFF) on ACOPOS Inverter (8I74T40037.01P-1) and can not be reset or clear ! i tried to press (ENT) button twice to reset the alarm but it did not work the S/E is always red So i would highly appreciate any help about solving the problem