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Modnet Driver Preformance

Miguel

Hello All

Please, someone can give me ideas to tuning better the Modnet Protocol.

we get some intermittent communication errors "I/O Device off-line, cannot talk".

We configured 55 IO Devices over Modnet Protocol reading about 200k Tags in the redundant system.

Thank you

  • in reply to Steve

    If you apply a group suffix to your device address in the I/O devices (units.dbf) table you can use that instead.

    So if your Modnet device address is currently "1" and you change that to "1 MyDevice" (note the space between the address and the group name), then you can have settings in citect.ini under [MODNET.MyDevice]

    That way you can group parameters by device type. Eg for all your PowerLogic PMxxx meters, address them with a "PMxxx" suffix, you can put all your relevant settings in [MODNET.Pmxxx] which will override those in [MODNET] which themselves override the driver defaults.

    (This isn't specific to MODNET so works with other drivers too.)

  • in reply to Philip

    Hi  

    After digging a bit deeper, it turns out that Timeout was added to device specific parameters (but not Retry), this was done in Driver build 3.01.05.000, as part of bug report  63307.

    The Device Address [MODNET.MyDevice] is a neat trick too! I will have to give that a try.

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