Kippzonen COMBILOG Data Logger Manuel d'utilisateur Page 105

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11.5 Transmission Sequence
The data are transmitted from and to the data logger with fol-
lowing sequence:
ASCII-Protocol
SD
.. ..
ED SD .. .. .. .. .. .. .. .. .. ED
request telegram response telegram
T
1
request telegram
T
2
T
3
SD
.. ..
ED
Profibus-Protocol
SD .. .. .. .. .. .. ED SD .. .. .. .. .. .. .. .. .. .. ED SD .. .. .. .. .. .. .. ED
request telegram response telegram request telegram
T
2
T
3
Modbus-Protocol
SD
.. ..
ED SD .. .. .. .. .. .. .. .. .. ED
request telegram response telegram
T
1
request telegram
T
2
T
3
SD
.. ..
ED
T1: time between two characters
T2: time between last character of request-telegram and first
character of corresponding response-telegram
T3: time between last character of response-telegram and
first character of next request-telegram
Minimum and maximum appearing values for periods T1, T2
and T3 and the adjustment ranges are given in table 11.6.
Hardware Manual COMBILOG 1022
105
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