LE50-868 ACK takes 45 sec.

2 thoughts on “LE50-868 ACK takes 45 sec.

  1. Dear Telit Support Team,

    my customer has some problems with the LE50.868 module. They need ASAP a soulution.

    Contact person:

    Ralph Gross

    Vision Devices GmbH

    Klosterstr.40

    D- 72555 Metzingen-Neuhausen

     

    Tel.: +49 7123 9102 981

    Fax:  +49 7123 9102 985

    eMail: r.gross@visiondevices.de

    Description of the problem:

    The problem  after Reset/Restart of the modules in functioning mode. The message after the restart is the same.

    After the Reset/Restart of the module, sends the receiver module an OKr (ACK), but at the other side the ACK is not sent to the RS-232 port. 

    After trying other messages to send, it takes about 45sec. this phenomena. After this 45sec. it works the communication as supposed without problems.    

    Can we shorten this 45 sec. malfunction time, and why is this behavior?  

     

     

    Procedure:

    2 modules Nr. 1 and Nr.2 in Addressed Secured Mode with ACK.

    After Restart of the module Nr. 2 are the messages with ACK acknowledged, but at the module Nr. 1 the serial port don’t send out this ACK message.

    After ca. 45 Sec. sends the module this message out over the serial port..

     

    Message x:

     

    Modul 2 Send:                  1=Hello numb 1 its me numb 2

    Modul 1 Receive:            2=Hello numb 1 its me numb 2

    Modul 2 Recieve:            OKr

     

    Message x + 1:

     

    Modul 1 Send:                  2=Hello numb 2 its me numb 1

    Modul 2 Receive:            1=Hello numb 2 its me numb 1

    Modul 1 Receive:            OKr

     

    Switch off and after aprox. 5 sec switch on (restart) Modul 2

     

    Message 1:

     

    Modul 2 Send:                  1=Hello numb 1 its me numb 2

    Modul 1 Receive:            (nothing on RS232)

    Modul 2 Recieve:            OKr

     

    Message 2:

     

    Modul 2 Send:                  1=Hello numb 1 its me numb 2

    Modul 1 Receive:            (nothing on RS232)

    Modul 2 Recieve:            OKr

     

    Message 3:

     

    Modul 2 Send:                  1=Hello numb 1 its me numb 2

    Modul 1 Receive:            (nothing on RS232)

    Modul 2 Recieve:            OKr

     

    Message 4 after aprox. 45sec: 

     

    Modul 2 Send:                  1=Hello numb 1 its me numb 2

    Modul 1 Receive:            2=Hello numb 1 its me numb 2

    Modul 2 Recieve:            OKr

     

     

    Modul 1 registers:

     

    S200=0r

    S201=3r

    S202=7r

    S204=8r

    S206=0r

    S207=0r

    S209=0r

    S210=5r

    S211=8r

    S212=1r

    S213=1r

    S214=5r

    S216=2r

    S220=9r

    S223=2r

    S226=2r

    S227=1r

    S228=255r>

    S240=0r

    S243=1000r

    S245=10r

    S247=100r

    S250=0r

    S252=1r

    S255=1r

    S256=0r

    S258=0r

    S260=0r

    S261=0r

    S262=0r

    S263=0r

    S264=0r

    S265=0r

    S266=0r

    S267=0r

    S268=0r

    S269=0r

     

     

    Modul 2 registers:

     

    S200=0r

    S201=3r

    S202=7r

    S204=8r

    S206=0r

    S207=0r

    S209=0r

    S210=5r

    S211=8r

    S212=1r

    S213=1r

    S214=5r

    S216=2r

    S220=9r

    S223=2r

    S226=2r

    S227=1r

    S228=0r

    S240=0r

    S243=1000r

    S245=10r

    S247=100r

    S250=0r

    S252=2r

    S255=1r

    S256=0r

    S258=0r

    S260=0r

    S261=0r

    S262=0r

    S263=0r

    S264=0r

    S265=0r

    S266=0r

    S267=0r

    S268=0r

    S269=0r

     

    Alex Mocalov —

    Vision Devices GmbH Klosterstrasse 40

    D-72555 Metzingen-Neuhausen

    Tel.: +49 7123 9102 980

    Fax:  +49 7123 9102 985

    eMail:a.mocalov@visiondevices.de

     

    Please contact directly the customer, Mr Mocalov.

     

    Many thanks for your time and support.

     

    Best reagards

    Johann Papp

    ————————————————————————————

    Rutronik Elektronische Bauelemente GmbH

    Field Application Engineer Wireless

    Landsberger Str. 392 , D-81241 Muenchen

    Phone : +49 89 88 99 91 26

    Mobil:   +49 170 450 21 31

    Fax :     +49 89 88 99 91 19

    eMail:   johann.papp@rutronik.com

    http://www.rutronik.com

    1. Hello,

      did you get a solution for your problem?

      We have the same on LE70.

      It seems there is a counter, incremented for each frame.

      After a LE70 reset, this counter is reseted and we have to wait 1, 2, 3 or more frame until the frame is transmitted on RS232.

      Is it possible to disable this counter?

      Best Regards,

      C. Brazeilles.