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Need help to connect S7 300 and Eycon20(Eurotherm) via profibusDP

Hi,everyone, I have a job requiring get S7 300 talk to Eycon20(Eurotherm) via profibusDP. I am a graduate who have just stepped my foot in industrial automation. For this job,I have no clue how to to do it. Could you guys please tell me how I can do this? or at least give me some hint or some manuals to read? Thank you very much.
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  • Ian Roughsedge (Product Manager - Systems) May 12, 2015 12:59
    The Eycon can act as a Profibus DP Master, the S7 300 PLC may well be able to act as a Profibus DP master and/or slave. You need to make sure the model of PLC you have supports Profibus DP Slave. At the same time, you can get the correct .GS? file from the manufacturer (? is a letter for the text language in the file, D=Default [often English], E=English etc.). This file is vital because it describes the slave device to the master device, nothing will work if you have the wrong file.

    As you are new to communications, it is worth remembering that for a first test to establish comms, that the golden rule is to keep it simple. You don't say what the final architecture might be, but for the first test just stick to one Eycon and one PLC with no other Profibus devices.

    Both the Eycon and PLC are configurable, so you will need to configure the PLC as well as the Eycon.

    Configure the PLC first, I believe it is a modular station, so pick just one simple module from the GS? for the test (e.g. something like 1 word of input data). It is a good idea to link it to a simple counter so you can see the value changing when you read it at the other end.

    When configuring the Eycon, load the GS? file, create a slave and pick the same module from the GS?.

    The standard LINtools documentation describes more about setting up the Eycon to be a Profibus DP master. Use the menu bar 'Help' and pick 'Help Topics', then start with the entries shown in the image below.
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  • Ian Roughsedge (Product Manager - Systems) May 12, 2015 13:12
    Hopefully this won't apply to you, but just in case. After you have set the link up, if it is not working for you, then please take a screen shot of the Eycon runtime diagnostics.

    The image below is of the profibus master control function block, after following the LINtools help mentioned above, you will be aware of this function block. First go into LINtools online connect mode. Then enter the PLC slave address (see red highlight). Now make sure that the Alarms field has been selected so that all alarms are shown. Then finally take a screen shot of the block, if you share it then it will show where the problem lies.

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  • Bryan (Customer Support Engineer) May 13, 2015 16:41
    If you have an Eycon then I assume you have installed the FoxboroPAC DVD that came with it. Look on the menu for the documentation here:

    Start > All Programs > Invensys > FoxboroPAC > Documentation > Online Books

    All the files linked to in this webpage are installed on your hard disk.
    Click Instrument Documentation Tab and then Eycon 10/20 for the Handbook, User Guide and Installation Sheet.
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