7
6043-2202
Untimed address frame
The master MA-43 searches for the start sequence and address in the RS-232 data stre-
am. When a valid start sequence is detected the next received character is transmitted
as an address to all connected slaves. If there is more than one character in the start
sequence, there is a time limit between two subsequent start characters. The time bet-
ween two start characters has to be less than 10 byte times. When a start sequence is
detected the next character is an address. There is no time-limit between the last start
character and the address character.
If another character is received instead of a start character, this character and any
previously accepted start characters for this address frame search, is transmitted and the
MA-43 looks for a new start character.
If the time expire between characters in an address frame, the previously accepted
characters for this address frame search are transmitted and the MA-43 looks for a new
start character.
UNTIMED ADDRESS
1 Start character
4 Start characters
T1 has to be less than 10 byte times
There is no time-limits when only 1 start character is used.
Data
Data
Data
Data
Data
Start
Start
T1
Start
T1
Start
Start
T1
Address
Address
AUDIN - 8, avenue de la malle - 51370 Saint Brice Courcelles
Tel : 03.26.04.20.21 - Fax : 03.26.04.28.20 - Web : http: www.audin.fr - Email : [email protected]
