Rod_Hackney

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Posts posted by Rod_Hackney

  1. Posted

    We have a PLC 3 that controls part of a process. We are planning on upgrading this process area but it will not be for a few years. WE have immediate need to integrate a SLC 5/05 PLC with some of its information into the PLC 3. The PLC 3 has a Data Highway card in it but if I remember correctly, this is the original DH not DH+. Other than hard wiring another SLC5/05 near the PLC 3 and hardwiring the outputs to the PLC 3 does anyone know of a viable communications option for this?

  6. Posted

    The company I work for is opening a new facility and it provides the opportunity to install ethernet network from the ground up. Most lines in the facility will use ControlLogix processors with a few other manufacturers PLCs mixed in. We currently use Moxa ethernet switches at our other facilities but wanted to get the forums opinion on ethernet switches and your experiences.

  9. Posted

    Based on the manufacturer of your plc, you should be able to access the diagnostic registers with wincc or an OPC server. You might want to post the PLC that you are using and what you are trying to access for comment. Post it under the appropriate PLC manufacturer forum.

  13. Posted

    I reviewed the email you sent. It reflects that the supervision pc is running Microsoft server and the Wonderware program. In order to make any changes to the Wonderware program, you have to have a development license. IF you only have a runtime license, it will not let you open a program called window maker that wonderware uses for modifications. I have not seen you wonderware configuration but there are two basic ways that wonderware might be transfering the files. If can be using an internal script that is trigged by an event (the specific time to transfer the files) . The other means would be that Wonderware would run a executable which would be a program written to transfer the file. It would be written pehaps in visual basic or C and compliled. The only way to see the specifics is to open you wonderware configuration with windowmaker and check your configuration for setup. If your not familiar with window maker there are several downloads/tutorials available with wonderware. It would be good to know the version you are running.

  16. Posted

    I have not had a problem with Step 7 locking any ports on our companies PCs. We have numerous locations and they all have PCs running step 7 as well as other softwares that use the com ports. I would suggest looking at WinCC as it is an HMI product you may have a driver being loaded that uses the com port.

  17. Posted

    IF you know VB programming, it is not to hard to program a small HMI in it. There are numerous support sites that sell drivers you can use with VB. Software toolbox has a good selection.

  18. Posted

    If you can post your code in a PDF file, I am sure this site can give assistance. I do not have the S7-200 software but have used it in the past. IF your not getting a scan error and shutting down the plc it may be a logic glitch in the program that is only happening under certain circumstances.

  22. Posted

    I just added a WinCC tutorial to the available downloads on this site. Check under Siemens manual downloads and you will see the zipped up tutorial. It covers most of the questions you stated.

  25. Posted

    Data Logging on the remote site every minute ends up being a lot of data to transfer one time a day. What kind of wireless network are you using can have a big impact on transfering the file. If you are archiving data locally to a csv file, the import option might be the easiest way to go. I would check with Scada HMI package manufacturer to discuss options for bulk file import.