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TZM443
7.14 SET RS485 COMMUNICATION PARAMETERS
The host must be sent with the following sequence:
CASR followed by CR
The TZM443 matrix will respond:
ACK
(Hex 06) if the control has been executed correctly
NACK (Hex 15) if it has found incorrect transmission errors
Example: in order to program the TZM443, connected as a unit with address 4, baud rate
at 2400 bit/secs and a response time of 80 milliseconds, it is necessary to send the
following characters in line: 43 34 31 35 0D
wait 150msec between one command and the other.
ELPRO Video Labs s.r.l.
Via della Praia, 4/A 10090 Ferriera di Buttigliera Alta (TO) ITALY
Tel.+39 0119348778 – Fax +39 0119348779
where:
C is the character Hex 43
A is the address of the matrix (0 – 7)
S is the speed of Tx/Rx (1 or 2)
1 = 2400 bit/sec 2 = 9600 bit/sec
R is the response time (from 1 to 7) in multiples of 16msec.
1 = 16 msec
2 = 32 msec
3 = 48 msec
4 = 64 msec
5 = 80 msec
6 = 96 msec
7 = 112 msec
CAUTION
If multiple string fields are sent
4x4 HIGH RES. & AUDIO MATRIX
16
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