2500 work with Eycon-20 in DPv1

How is possible to create .gsd file or convert the created ones with "Profibus GSD file editor" as the 2500 work with Eycon-20 in DPv1
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  • Bryan (Customer Support Engineer) January 08, 2013 15:27
    The file you've created using Profibus GSD Editor should work in Eycon.
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  • That work only if the 2500 is configured as DP....

    What is need to add?

    Only this?
    Eurotherm_DPV1_support = 99
    Eurotherm_MSAC1_Max_Lsdu_MS = 40
    Eurotherm_MSAC2_Max_Lsdu_MS = 40
    Eurotherm_Watch_Dog_enable = 1
    Eurotherm_bWD_Fact_1 = 20
    Eurotherm_bWD_Fact_2 = 1
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  • Ian Roughsedge (Product Manager - Systems) January 14, 2013 13:57
    A GSD file created with the 'Eurotherm Profibus GSD File Editor' would work with a 2500 set for Profibus DP. When Profibus DPv1 is required (e.g. to make use of Acyclic Data services) then the 2500 must be set for Profibus DPv1 operation and a different GSD file must be used.

    An example setting for the 2500 is shown below, for clone file model 25F0 v4.21. Note the use of Shift+F1 to get the parameter help.



    The relevant selections in the 'Eurotherm Profibus GSD File Editor' are shown below for Profibus DP operation.



    Do note as mentioned above that when you select DPv1 at 2500 you must use a different GSD file and to obtain that you need to refer to the factory as the 'Eurotherm Profibus GSD File Editor' only supported generation of Profibus DP compatible GSD files at the time this post was written.

    It is quite rare to require the DPv1 services and normally the best way forward for most users is to use Profibus DP. Certainly, a simple test using the Profibus DP setting when using GSD file created with 'Eurotherm Profibus GSD File Editor' is an excellent starting point prior to considering a move to DPv1 operation.
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  • Ian Roughsedge (Product Manager - Systems) January 14, 2013 14:47
    In the reply above it was stated that the 'Eurotherm Profibus GSD File Editor' only created GSD files for use in Profibus DP mode. For Profibus DPv1 mode, another GSD file is required. This is because the product development team for the 2500 range of products introduced a significant comms initialisation difference to ensure the two modes could not be easily confused.

    The 2500 SYSIO variant was the only variant to support Profibus DPv1 and it was typically used in that mode for use in systems with Eurotherm T940, T940X or T800 Profibus master products. When updating this sort of system it is often the case that Profibus DPv1 setting is encountered (although DPv1 is not always required by the replacement system and Profibus DP can be used).

    When Profibus comms initialises, and this applies to all Profibus devices not just Eurotherm devices, the master reads a number from the slave and tries to match it to one in the GSD file. Profibus cyclic comms can only start if the numbers match. The number is called the Ident_Number and can be found in all Profibus GSD files. When you change the setting for 'Prot' in a 2500 SYSIO configuration you will cause this number to change at the 2500, that is one reason why a different GSD fie is required. Below are the enties from the GSD files for the two modes of operation.

    Ident_Number = 0x2510 ;for Profibus DP
    Ident_Number = 0x04B4 ;for Profibus DPv1

    Note that the leading '0x' flags these as hexadecimal values in a GSD file.

    When in the Profibus DP mode the 2500 SYSIO product appears like a standard 2500 but with additional acyclic data (v1) services available. This allows the
    'Eurotherm Profibus GSD File Editor' to configure a GSD file for either the standard or the SYSIO variant so long as the SYSIO is used in Prot=DP mode.

    In addition to the above, the user parameter string passed from the Profibus Master to slave is modified when the value of 'Prot' is changed as well as the diagnostic response message. This is the other reason why a different GSD is required for each mode.

    It is very important to recognise that having the wrong Ident number does not stop all communications, it will only stop the slave and master entering cyclic data exchange. The slave can still respond to some commands from the master; for example, the one to read the ident number during comms initialisation. The Eycon diagnostic block can be used to check the Ident Number for a connected 2500 slave.

    The Eycon Profibus Master control block includes a Profibus slave diagnostic area, highlighted within the red circle below.



    You must enter the Slave Address (SlaveAdd) at runtime and re-enter if you move cables etc. as it updates the data once only when entered (there is no dynamic refresh of the data). Much of the data highlighted above is read from the slave, although some is set by the master, The examples below are for a 2500 SYSIO at Slave Address = 10 (decimal) with the 'Prot' set to 'DP' and 'DPv1' respectively. You can clearly see the two different Ident numbers.



    The leading '>' in the LIN Block field value denotes a hexadecimal value.

    Do note as mentioned above that when you select DPv1 at 2500 SYSIO you must use a different GSD file and to obtain that you need to refer to the factory as the 'Eurotherm Profibus GSD File Editor' only supported generation of Profibus DP compatible GSD files at the time this post was written.
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  • Bryan (Customer Support Engineer) January 17, 2013 15:44
    Please note the Eurotherm Profibus GSD editor is not found on the Foxboro PAC Software v6.0 DVD and was last found on the Eurotherm Suite 5.0 DVD.
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