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  1. #1
    Join Date
    Sep 2012
    Posts
    2

    Trouble writing via EasyIO's modbus

    Hello all you tech guys.

    I have come to a problem that i can't seem to fix/overcome.

    I have a temp/Co2 Sensor, that also acts like a controller for VAV.

    http://www.senmatic.com/sensors/inclimate

    But I have problems writing down new values to it. (Modbus Add. SP, KP, etc.)

    I got the register table from the manufactor and have no problem reading from it (on the Sensor).

    I'm using Distech control EC-NET-AX. sedona palette EasyioModbusSlave.

    Is there any way i can see the return data from my sensor?

    Because somtime It returns with a "Status code 3" wich, as fra as I know, Means:

    The request is received by the slave with a parity, CRC or LRC error.
    The slave ignores the request and sends no response.

    But I have no idea where to look for this problem.....

    I Senserly hope somone out there is much wiser than me...


    Lars

  2. #2
    Join Date
    Jun 2010
    Posts
    21

    Contact us at EasyIO, skfoo@easyio.com

    Contact us at EasyIO, skfoo@easyio.com

    Quote Originally Posted by Lars_DK View Post
    Hello all you tech guys.

    I have come to a problem that i can't seem to fix/overcome.

    I have a temp/Co2 Sensor, that also acts like a controller for VAV.

    http://www.senmatic.com/sensors/inclimate

    But I have problems writing down new values to it. (Modbus Add. SP, KP, etc.)

    I got the register table from the manufactor and have no problem reading from it (on the Sensor).

    I'm using Distech control EC-NET-AX. sedona palette EasyioModbusSlave.

    Is there any way i can see the return data from my sensor?

    Because somtime It returns with a "Status code 3" wich, as fra as I know, Means:

    The request is received by the slave with a parity, CRC or LRC error.
    The slave ignores the request and sends no response.

    But I have no idea where to look for this problem.....

    I Senserly hope somone out there is much wiser than me...


    Lars

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