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  1. Hi Everyone! Where are my experts? I am undertaking a project at work. The project contains analog style motor positioning circuits (operational amplifiers, integrators, and other PI elements). Not that this is relevant to the post yet ;) .It's my first PLC project ever! I am using the Schneider M258 with SoMachine 4.1 The PLC is talking to SoMachine via Ethernet (obviously I have a router between the PLC and my pc).I can Login and run the first POU I created. It's a simple And logic circuit for now. I have a co worker (c programmer) agreeing to help me pass data from my PLC to a browser screen. Although he's not familiar with PLC he's quite skilled writing code. He has wrote a Modbus protocol which allows him to interpret Modbus commands on his desktop.   1) Do I Need any special hardware to pass the data out of the PLC into the Router then into his browser. 2) As a trial can I send him MODBUS commands regarding my AND circuit? 3) How do I create such a command? 4) Is it possible for him to send me Modbus commands to change variables inside my program? 5) Are there web browser "plug-ins" for this idea? Thanks for reading and hopefully all of you can help me answer some of these questions.        
  2. ESATR / EGATR Commands

    Good morning folks, I've browsed this forum often enough over the past few years that I think it's time I finally signed up.  Lots of good ideas and advice that I've benefited from and I hope to return the favour some day. So on to my question.... I'm currently knee deep in a project using a CJ2M PLC and I have to send and receive chunks of data over Ethernet/IP.  To do this, I'm using the ESATR and EGATR commands (set / get attribute).  I would like to know if these commands finish execution (ie. the ethernet port completes the transaction) even if the input conditions to the command are no longer true.  Specifically, if I use the "port ready" system flag (A202.00 is an input to my FB in this case) as a condition to trigger the ESATR command, this bit will go low once the port becomes busy (ie. during execution).  So will that interrupt the completion of the ESATR command resulting in an incomplete transaction and data loss?  I've looked through the help files on the command but don't get a clear picture of how it behaves. Perhaps the attached JPEG shows more clearly what I mean. Thanks, PC
  3. Hy guys,  My first topic here. Thank you all for so much free info.  I am having a NS5 connected to the serial port of a CJ1M. It worked fine until yesterday when I found the HMI with the "Time-out error occurs while downloading the data. Allocation host: CJ1" message. The first thing I've done si to check the cable. It seems to be ok. Then, I tried to connect the PC through the same port and doesn't work. I tried with others CJ1M and it worked. It is impossible to be a configuration issue, because nobody changed it. Cand only the port die in a PLC?  I think th HMI is fine since I am able to download the project without problem. I will make some other tests to see if I get to communicate bothe devices but I need some help in order to take a path or another. Thank you!
  4. Hello,I am trying to use ProWORX NXT to view the logic of my Modicon Quantum 534 controller online. When I try to go online with it, it always times out. I am using a TCP/IP connection and my PC is in the same subnet as the controller in question. I can ping the controller's IP address just fine and when I use ProWORX NXT's Net Scan function, it recognizes that there is an Ethernet connection at that IP address but doesn't recognize it as a Modicon controller.Weirdly enough, my PC can connect to another Modicon controller of the same type and in the same subnet just fine.Can anyone help me with this issue?
  5. 1756-CN2 Series C

    Hi! I try to add in the I/O Configuration, the ControlNet Module 1756-CN2/C, but I can't find for Module Discovery. Why the Module Discovery show me only  1756-CN2/A and  1756-CN2/B? Where I find 1756-CN2/C? I have all versions of RSlogix5000 10 to 20. Thanks for the attention. 
  6. OS: Windows 7 on VMware virtual machine. Sysmac Studio V 1.13. What works: Ping to PLC. Sysmac Studio -> Controller -> Controller Communications -> Ethernet via hub -> Test -> "OK". What doesn't work: Starting with new project for NX701-1600 (correct PLC): Sysmac Studio -> Controller -> Online. -> Controller -> Transfer ... -> From Controller. The task seems to run to about 90% before stopping with the error:  I can't find any reference to this error in the manuals. Has anyone got any suggestions to fix this?   Many thanks.
  7. Hi guys, I'm using NJ501-1320 for the first time, but i'm having a hard time trying to get the information read from another PLC connected to the switch. I have successfully established the connection to the database, and write some values to it. The main problem now is sending the values in memory, to that same database. So i'm reading the values using an array [0..9] of word, and then converting the same variable to string. The instruction receive doesn't have no reference in the manual, so i don't know if the problem is there. Any help would be aprecciated. Thanks
  8. GT Designer Comms problem

    I have GT Designer2 installed on a Win XP virtual machine. I have used the USB to serial Comm port to to upload PLC software from a FX3g plc and this works fine. My problem is trying to upload software from a GOT1000 series OIT using the same UBS-serial comm port/cable. I get the folowing error: (see attached capture) What am I doing wrong? The only thing different is that I am running Gx Developer 8.103H in my Win 7 64 bit system and that talks to the PLC fine. I am unable to get GT designer 2 to talk to the GOT1000 in Virtual XP mode. Any suggestions is greatly appreciated.