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Found 115 results

  1. Modbus client problems with FX3U

    Hello, I have the following problem, I have two PLCs FX3U-16M, with a communication module FX3U-ENET-Port502 in both PLCs have built a server under Modbus TCP and a client to read the registers of the other PLC, my code of Modbus TCP client presents the error code C017 and errors in the channels for reading and writing the registers. Of course grateful for his help.
  2. CPM1A Backup/password

    Hi all, I hope one of you kind people could help me: I have an Omron CPM1A CPU where the outputs are damaged. I have a new blank CPU and I would like to transfer the program, however, the UM is read-protected. The backup tool doesn't seem to cater for the CPM1A. Is there any other way the program could be transferred? The customer does not have the program or the password. I do not believe that I am interfering with any intellectual rights here because the OEM are long since departed and all I want to do is transfer the program, not modify it. Many thanks in advance. JG.
  3. PLC Password

    Hai All, I have proble on the PLC (CJ1G), this PLC used on the Wrench....When I operate the wrench...the indicator lamp of the Digital Output already light...but there is no voltage on the terminal of Digital output... And I want to ask, how to know the diagram ladder because the supplier of the wrench dont gived PLC Password to us...can I see the diagram ladder without password? Thank you....
  4. Several years ago before I arrived at my company, an integrator came in to do the automation on our system. They used a Controllogix 1756-L61S for the safety portion of the project. Apparently, when they completed the job they did not provide the source code with comments, safety password, etc. for anything and it got ugly between our company and theirs. In other words, they would not provide it if we went back to ask them. Allen Bradley has told us that we can not make any alterations now to the safety logic because we do not have the password that was used to create it. And they said there is no longer a master password that you could use like in previous controllers. Does anybody know of any workarounds for this? Or have heard of anything that might possibly work?
  5. I am using TIA portal to make HMI screens for a KTP700 BASIC HMI panel. I am using the built-in password protection pop-up screen. Is it possible to change the font size of text items on the password protection screen? The text, and the user and password fields are a bit small. I would like to make them bigger. Thanks in advance.
  6. Hello, Can a password protected PLC be updated with a help a memory cassette? The documentation states that it is not possible. But if the memory cassette is protected with the same keyword? Thank you.
  7. FX3U-232-BD

    Hello, everyone. I have FX3U-32M PLC with expansion board FX3U-232-BD. I successfully can read and write program through programming port (RS-422 mini-din 8pin) at GX Works2. Now I am trying to connect through FX3U-232-BD, but I can’t. I have a task controlling PLC with OPC server. And I must to connect through FX3U-232-BD, because to the programming port connected touch panel. What should I do, to do it correct. At the program I see, that H81 is writing to the D8120 register. Which means that channel 1 settings is: 9600 speed, 8 bit, no parity, 1 stop bit. But I can’t connect with this settings. Cable which I use: PC PLC 1 1 2 3 3 2 4 6 5 5 6 4 7 NC 8 NC 9 NC I am new in this type of PLC, and I need fast solution. So you are my last hope. Sorry for my English.
  8. Non-volatile memory GX Works2

    Hi all, Im trying to figure out how to create non-volatile memory tags in GX Works 2 (using a FX3U controller), so that the values stored in the D registers won't keep zeroing out every time the controller powers down. Does anyone have any helpful tips on how this is done? Thanks
  9. FX3U Programming Manual.pdf

    The FX3U Programming manual is a 995 page secured pdf. You cannot copy-paste from a secured pdf. I reprinted the manual with Soda Pdf and OCR'ed it with Acrobat, using no downsampling. So now i have an unsecured searchable pdf. https://www.dropbox.com/s/3ad2ceclphla0z0/FX3U%20Programming%20Manual%20OCR.pdf?dl=0 Cross-platform and free software used: Pdf Split and Merge Basic and Soda PDF: Combine pdf pages Dassault Draftsight: edit and print autocad dwg and dxf, with 3D and scripting support CloneZilla Live: Create and restore a server/ computer image
  10. Good Day, I would like to know how FX3U-64DP-M will keep cyclic data exchange running even if one of its active slaves is disconnected or shut off. Thanks.
  11. Hi everyone! I have this simple problem, but cant get over it. I have structured ladder/FBD Project and i use GX works2. As topic tells I use analog signal from field. Now, i need to compare this value X (from field) to Values X1 and X2, meaning if value X is between values X1 and X2 then M1 is true. Ok, but what function i need to use for this? Best regards, Juha.
  12. FX3U_GXWORKS2_BINARYCODE_BY_OUTPUTS

    Hi all, Im new with plc programming and now I need some help. As topic says, I have FX3U plc and gx works2. Now, I need to tell stack heigth as positions by output. We all agree, that you can tell ten different situations when you have four outputs (Y1 and Y4 = position five). Is there any practical/ reasonable way to do this when you need use outputs. For example, is there any Functions for this, or? Best regards Ultra.
  13. PLC->OPC->Labview

    Hi, I have been trying to communicate between a PLC(Mitsubishi FX3U) and Labview (using Data Socket) through a KEWserverEX OPC-server (using a RS232C COM Port cable). I have been successful at that by using baud rates ranging from 9.6kbits/s to 115.2kbits/s, with average reading time into Labview ranging from ~40ms to ~10ms (of course depending on baud rate) per value. However, this is too slow for our purposes, and we need it to be in the area of 1-3 ms per value. Are there any tricks to decrease the reading time between the PLC and Labview, or do we perhaps need an ethernet module? Kind regards Bjørnar
  14. MP277 UpLoad - Security Mode

    Hi everybody! I'm in a new challenge, we have a machine with MP277 HMI and I need upload the program to do some changes. The problem is the program is protected with a password, so when I click on "Control Panel" where I supposed set the HMI in "Transfer Mode" a password is requested There's an way to break this security and upload the program? Thanks in advance!
  15. Profibus using FX3U-64DP-M

    I have a profibus communication using FX3U-64DP-M to access a profibus slave the only thing I want is to monitor the slave outputs can I use it as one way communication ?