Showing results 1 to 3 of 3

Thread: Straton IEC60870-5-104 Receiver Set poit command

  1. #1
    Join Date
    10.02.2019
    Posts
    2

    Default Straton IEC60870-5-104 Receiver Set poit command

    Good morning, I should configure a slave 104 to receive set point command, but I have a
    a question to ask you. I receive the normalized value correctly, but I would like to know if there is a bit that gives me the information of "setpoint commad received" ... Thanks

  2. #2
    Join Date
    01.07.2008
    Location
    Salzburg, AT
    Posts
    790

    Default Re: Straton IEC60870-5-104 Receiver Set poit command

    in iEC60870 protocol the commands are 'write-only'. Thus, a master can send new value (e.g. of a T48 Information Object - a variable) but when such variable changes value in slave - there will be no frame sent to the master.

    In practice this means that you do not need any additional bits to detect new incoming command. As for normalized value the legal range is only -1.0 to 0.9999, you can define that after the execution of a set-point command the T48 variable gets value ("idle") e.g. -2.0; so a value a master cannot send. Then a new command, even when with the same value as command before, will change the value of your T48 variable. 

  3. #3
    Join Date
    10.02.2019
    Posts
    2

    Default Re: Straton IEC60870-5-104 Receiver Set poit command

    Thank you so much..

Similar Threads

  1. Replies: 3
    Last Post: 14th February 2018, 09:48
  2. Aditional command butons in command processing screen
    By Joulzer in forum zenon Energy Edition
    Replies: 8
    Last Post: 6th February 2017, 09:52
  3. Normalized value with IEC60870-5-101/104
    By markclemens in forum zenon Energy Edition
    Replies: 1
    Last Post: 22nd January 2016, 11:38
  4. IEC60870 Einzelmeldung
    By junior in forum zenon Energy Edition
    Replies: 4
    Last Post: 28th January 2014, 11:32
  5. IEC60870 Einzelmeldung
    By junior in forum Drivers
    Replies: 4
    Last Post: 28th January 2014, 11:32

Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •