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  1. Not able to establish DDE connection

    Good day to all, I am trying to establish DDE communication between my PLC (1769-L23ER) and MS Access via RSLinx Classic Gateway (3.9) over Windows Server 2012 R2.  On my developing PC (Windows 7), there isn't any issue at all. But when I port the codes over to Windows Server 2012 R2, MS Access is not able to establish DDE communications with the PLC.  I was wondering what went wrong. The error message from MS Access is "MS Access can't find the specified application and topic because it can't open the DDE channel, err.Number is 282. The code for getting the channel is as follow OpenRSLinx = Application.DDEInitiate("RSLinx","PLC-D") I was wondering was there anything I have miss out. eg. Configuration of the server, path settings, etc.. Any help is welcome. TIA Cheers CY
  2. Hi everyone, we are digital display company that manufactures industrial displays. One of our more popular products are displays that use Ethernet/IP to communicate from a PLC. We are trying develop a gateway device that bridges the PLC (typically AB) to our serial input displays.  We need help writing the firmware. If you are interested or have any suggestions, please let me know. Thanks. Dennis Holmberg - President Electronic Displays Inc. 630-628-0658 x 306  
  3. Hello. I have CPU S319-3 PN/DP which connected with Sinamics G120 by profibus. I have connect with cpu by ethernet. I made setting as explained in help, but it doesn't work. I use Simotion Scout, Version of sinamics drive 4.6. Scout can found CPU in accsessble nodes cpu ip is I also trying change slot 0,1,2, but it bring zero result. What additional setting need to do?   Setting HW Setting connection to Sinamics Sinamics Version Accsessble nodes    
  4. My intention is create a visual basic program with access (or excel), if possible with a Cold link (so I wake up when I need data only). See if you can orientate me about the best way and solve my doubts. I am pretty new to all this. I have several Allan-bradley plc’s in the Ethernet network. Several PC’s with windows 8 and excel/acces in the latests versions I have a server in the net where I have installed RSLINX gateway version. I have created a topic and I can see the PLC variables in there OK. In rslinx  commnications -> I have set the click “enable rslinx classic gateway” I have run the OPC test client and it works OK according to some test Ihave found in google 8so OPC/DDE server is active etc) I want to retrieve Data in My PC from the rslinx that is in that server called BCNA08. I have colleagues that know how to run the EDIT ->copyDDE/OPC link and create a HOT LINK in excel in the same computer for other versions of rslinx (lite I believe) that they had for tests purposes. So I try the same but of course it does not work for a PC that is nor running RSlinx. My Rslinx is in BCNA08. How can I set a hot link (excel continuos update) and cold link (visual basic open/close communication). Any help or suggestions will be welcomed. Any good link to learn more too.