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  1. Hi, As part of developing an EtherNet/IP driver for the CLX family, I have the task of recognising tags that would ordinarily be represented as strings. With SLC/ML, that wasn't too difficult since strings were a pre-defined type found in files with a file type of 0x8d. With CLX, I understand that the situation is quite different, since a string now becomes just another structured tag like so many others. So, for instance, in my controller, and with the help of information gleaned from the LogixTagRead program, I can see that a request sent for one particular tag (which I happen to know is a string) returns me the following information: Tag type: A0 02, followed by, Structure handle: CE 0F, followed by, Length (DINT): 1A 00 00 00, followed by, Data (Series of SINT): 41 42 43 and so on through to 58 59 5A Now in one sense I am fairly clear how to interpret most of the above data -- but in another sense, I don't believe (unless I'm missing something) that it can ever tell me that this tag should be INTERPRETED as a string. What do I mean by that ? Well, the tag type of A0 02 simply says that this tag is a structure (because the top bit is set). Even if we were to unset the top bit, the value becomes 20 02 and I'm not sure if that has significance in itself. I'm not sure if the structure handle (aka template id) of CE 0F tells me anything other than the fact that this is a symbol type of CE 8F. I know that this field can be looked up and will tell me that this structure comprises a C4 (DINT) followed by data comprising a series of C2 (SINTs) where the number of SINTs is given by the value of the DINT preceding. And, of course, this makes sense in that the DINT value of 1A 00 00 00 is decimal 26, followed by 41 42 43 ... 58 59 5A which is a 26-character string ABCDEFGHIJKLMNOPQRSTUVWXYZ. This is all correct. So whilst this LOOKS like a string, how can my code be sure that it is actually to be INTERPRETED as a string ? At the end of the day, it is only a DINT followed by a series of SINT; this doesn't of itself mean it is a string. Is there anything in the tag type or structure handle which actually identifies this as a string-type tag ? Thanks.  
  2. hello every body.  I want to upload program from  HMIGXU3500 . I have  Vijeo Designer Basic v1.0   software Is it possible to upload program from this HMI.? I want to have back up file 
  3. Hi, I'll apologise for asking noob questions before I start - please don't shoot, but searching for existing answers on this is very difficult for me as I'm not confident in what search terms to use to get some appropriate results! And I'm afraid there are several aspects to my question too. I'm a software developer tasked with extending an existing EtherNet/IP driver. The driver already has the ability to identify atomic data in a range of AB controller models (by specifying a file type, file number, element and sub-element). The driver can then issue the appropriate commands (at the different link layers) to read the values of that atomic data, and write new values back. I have some test hardware:  (1) Control Logix 1756-ENBT (2) SLC 500 1747-L551 (3) MicroLogix 1400 1766-L32BWA (4) CompactLogix 5370 1769-L30ER I need to access these units remotely over a VPN. I've been able to change the subnet & gateway of (2) and (3) so that I can now see them over my VPN but have yet to work out how to do this for (I) and (4). None of the controllers are set for BOOTP but, to be honest, I'm less concerned about an answer for this than I am about other stuff that follows in a while! I also have a valid licensed dongle which allows me to load RSLinx, RsLogix 500 and Studio 5000 software - for some reason, the RSLogix 500 hasn't activated and I only have a day's grace period left but, here again, I hope to find a resolution to that outside of this forum. So, to the nitty-gritty.... I'm a confident, mature developer but I have absolutely no experience with PLCs and their terminology - and I admit I haven't been on any training courses. It will take me long enough to figure out protocol/command formats without the added burden of understanding the PLC programming processes, different pieces of Rockwell applications software and their associated plethora of documentation. In short, my task is to extend our driver to read and write non-atomic data types, i.e. structures and arrays. As a general concept, naturally, I know what a structure and an array are, but not specifically in terms of my test hardware's existing data files. I'm assuming that my easiest approach is to create a couple of simple structures and arrays in the existing test hardware using the Rockwell apps, at which I point I then have an odds-on chance of working out the command packets to put in my driver to read them. I believe that, to read non-atomic data structures and arrays like these, I need to use tags to address the data - if I've understood that correctly. Later on, I could then look at how I put together command packets to write to those structures and arrays, but I want to walk before I run. At present, I have fumbled my way through setting up a driver in RSLinx to access test hardware items (2) and (3). I can even run up a data monitor for both controllers, and can see various atomic data such as integers, booleans, etc. However, I'm guessing RSLinx doesn't let me set up structures and arrays. I assume that is done through either RSLogix500 or Studio 5000 -- but I have absolutely no idea how to do it or what I'm looking for. And the other aspect that's confusing me is that these two pieces of software are limited in the controller models for which I can start a new project. If someone could just give me some idiotproof pointers to step me through this, it would be fantastic. Thanks in anticipation.
  4. Is there any instruction in Sysmac Studio Structure text to detect rising Edge (DIFU/DIFD) ?

  5. Program lost after battery replace

    Antonio Tavares posted a topic in Mitsubishi

    We think so we lost the program after a battery replace, because the program isn´t loaded on GOT. Is it possible restore it by the PLC?
  6. This course is designed to equip the novice with no prior PLC programming experience with the basic tools necessary to create a complete PLC program using ladder logic common to most current platforms. Use Software : - Somachine EcoStruxure Machine Expert Basic - Free - Vijeo Designer Basic Full Articel About Lear PLC Schneider  Video Tutorial Learn PLC Training Free

  7. Granite Line Polisher Machine

    Indiajay posted a topic in Mitsubishi

    Hello friends, I have been working on Granite Line polisher machine. I have completed the program but there is a requirement for polishing the Uneven shape of granite slab. Has anyone worked on logic of this machine? Can anyone give some idea for the logic or the Plc program. I have seen Chinese machine manufacturers giving this feature. 
  8. Can I download program to FX5U By SD card ?
  9. Hello,, I have motion controller A series A172SHCPUN,, I have written the program ladder into the CPU, but I can't write the motion program.. i dont have the program to open file the program motion and I want to ask if I have the software SW3RNC-GSVE, my os computer is window XP, Can it be installed? and is the cable transfer used the same as the ladder transfer program cable (SC09)?

  10. Mitsubishi GT DESİGNER GOT1000

    Reza lotfi posted a topic in Mitsubishi

    Hi,  I need this program Please help me  R.lotfi@gmx.com
  11. Hello folks,   I am a rookie, self-training in PLC programming. I have written an SFC exercise (attached ACD file). I also try to call STL written subroutines and add-on instructions, from within the SFC main program. Calling the created subroutine works fine, but calling the add-on instruction fails from a reason which is above my level. I tried, tried and tried different solutions, with no avail. I am either wrong in writing the add-on (perhaps some missing but missing tag ?), or wrong is calling it. Can someone please give me a hint on what I do wrong ?   Thank you, Radu PS . I use Studio 5000 v24, combined with RSLogix 5000 Emulator.     SFC_trial.ACD

  12. PLC trainee

    Radu Babau posted a file in PLC Sample Code

    Version 1.0.0

    80 downloads

    SFC test file; cant call an STL written add-on from SFC main program

  13. [PLC Sample Code] - PLC trainee

    Radu Babau posted a topic in Download Comments

    PLC trainee View File SFC test file; cant call an STL written add-on from SFC main program Submitter Radu Babau Submitted 02/04/19 Category PLC Sample Code

  14. Panasonic FP0 C14RS

    esso1972 posted a topic in Other PLCs

    Hi All, I am new to the forum and new to programming PLC and like every newbie I have a lot of questions - Brief History of me - I had been a Manufacturing Technician for 20 years and recently got my BS on Electrical Engineering and now working as an Equipment Engineer. The main reason that got me interested in PLC's is my degree,  the field that I would like to get into and a recent problem that arise at work. My experience with PLC is very small in programming, some in TS I/O- However I had been studying by my self to the point that I built a test bench to understand it better and in the future create different project for learning purposes Currently I am putting together a tool Alarm delay program - Basically my exhaust sensors trigger an alarm (input signal turns OFF) before its send  the signal to my tool for abort, I want to create a different Alarm which will cause a different response from my tool and delay the original Alarm by 10 min and then trigger the original Alarm - PLC = Panasonic FP0C14RS  Reasons: Create a different Alarm: The response from my tool to this alarm will allow me to return my material back from the tool and put it in a safe spot. Delay the Alarm: Use a timer to perform this tasks - This the time that approx. it takes the to return the material. Trigger the original Alarm: I need to know which sensor was the problem in order to properly TS- So after my timer is complete - I want to know which sensor created the original Alarm My Current problem: I created the LD program, and while the original alarm stays OFF the program works fine - but since my exhaust sensor are always on - If my original alarm is trigger for  a few seconds, just enough to start my Delay Alarm: I dont have a way to know which sensor trigger after my Delay(Timer)is complete,  I reset my relays in order to be ready for new alarm.   Please provide feedback to my program - I know currently is not the best way or efficient way to do this and there are better ways, but my plan is to get it to work and then later revisions improve the way the program can be written   Thanks in advanced for your feedback and help Exh_delay_inv_rev1.pro

  15. ladder program

    diraemon posted a topic in Mitsubishi

    Hello everyone, I want to know why the Y172 coil is ON / logic 1? whereas contact SM1 is worth OFF / logic 0? can anyone explain it to me ?
  16. Hello.. I have hmi Proface GP-4301TW, USB type B cable and ethernet cable. I want to transfer the program to the hmi but I cant. When I turn on the power of hmi,  a series of test appears and finally it looks like the photo below and I cant enter the offline menu.. can anybody help me to solve the problem?
  17. Please,if anyone has a working program (.stx).I need it to test a PL7 JUNIOR software

  18. PLC program uploading automation

    Olivier posted a topic in Mitsubishi

    Hi, In conception phase we currently use GXWorks to upload programs to PLC (L-Series). In production mode, for different security reasons we would like to automate this transfer so that the operator does not access directly to the program. Do you know any tool allowing this by using command lines and not GXWorks UI ? (GXWorks does not seem to be "command line" friendly As a POC I  have automated the GXWorks UI in C#  (by simulating menu or buttons clicks) but I don't find it reliable (what if an unexpected popup "pops" ? ). PS : I am a totally noob in this PLC world so maybe I missed stg in the docs ... 
  19. A machine was bought at auction which included PLC-5/15 module.  It did not come with a backup of the program.  Our maintenance technician said the program would not load and turned the module over to me (IT).  I notice the battery was installed in '92 so am assuming the program is lost.  Is their any internal memory or last ditch effort i can attempt to recover the program from this module?
  20. Hi Guys! You can read my problem below, if anybody can help, please do it. Thank you. So, I have 4 knife. You can set the cutting width for each knife separately. The problem is, there is a lot of size. There is an example: No1 size:  #1: 20 mm, #2: 25mm, #3: 30mm, #4: 25mm   (#1=Knife1.......)                                       No2 size: #1: 22mm, #2:24mm, #3: 32mm, #4: 27mm What is make the problem more difficult is There are plenty of type code too. Like X1, X2, X3, Y1, Y2, Y3 ..... This is the main material code. and you can choose the belogging size. So you can select for X1 to No1 or No2 ... but you can select for X2 to No1 or No2 or any sizegroup you want. I can solve it with a lot programming, like deal every possible situation ... but there is a lot time .... :S  There is a touch panel where you can set the values.  Anybody have another idea for this problem ?    
  21. We have a QSeries PLC. Q25HCPU. We also have a PLC program. We found that the address registers (also known as device addresses) attain a z-value added next to it - automatically over time. We are not sure why this is the case. Nonetheless, when these values get added (by the PLC - not the engineering software), some of the functions in the PLC doesn't work. We found that by formatting the CPU, and reloading the program, allows for the system to work again (temporarily) for a few weeks, up until this problem occurs again. This problem occurs across various CPUs (eliminating the potential for hardware problems. These z values can be seen when a program comparison is done. (see attached file). The questions become; 1. What is the function of these values? (why does the PLC add them? 2. How can they be permanently removed?
  22. We have a QSeries PLC. Q25HCPU. We also have a PLC program. We found that the address registers (also known as device addresses) attain a z-value added next to it - automatically over time. We are not sure why this is the case. Nonetheless, when these values get added (by the PLC - not the engineering software), some of the functions in the PLC doesn't work. We found that by formatting the CPU, and reloading the program, allows for the system to work again (temporarily) for a few weeks, up until this problem occurs again. This problem occurs across various CPUs (eliminating the potential for hardware problems. These z values can be seen when a program comparison is done. (see attached file). The questions become; 1. What is the function of these values? (why does the PLC add them? 2. How can they be permanently removed?
  23. Hello i'm new in all things about plc, i do a project for school and i use a festo fc 34 plc. The plc is programmed via serial port RS232 my pc not support a serial interface and i use a RS232 to usb adapter. when a try to download the program to plc give me a error: "ERROR: Cannot access controller".  What i do wrong.  Thank you in advance and sorry for my English. Have a nice day.
  24. Looking for Socket TCP/IP communications program examples for Mitsubishi PLC iQ-R R04CPU using GX Works3, to compliment the Mitsubishi Ethernet manual Socket commands instructions. Unfortunately, the manual is missing real application ladder logic illustration examples of these commands. For example, the Socket Open Connection command, does not describe in what order or format to enter the IP Address.   For example, to enter IP Address 192.168.1.100, does the most significant octet 192 is entered or stored first in the lowest memory storage register (Big Endian format) or does the least significant octet 100 is entered or stored first in the lowest memory storage register (Little Endian format)? I am trying to write a simple Socket TCP/IP communications command that will write about four registers from an existing Mitsubishi PLC R04CPU (Socket Client) to an Allen Bradley PLC ControlLogix (Socket Server). .
  25. I'm using Controllogix L61 redundancy system as a slave with DCS using ethernet tcp/ip socket programming. The communication between master and slave will fail after a switchover. Kindly give solution for this. Thanks and regards, Rasu