Evoqua Wallace & Tiernan Depolox 3 plus, Manual

Page: 100 / 157

WT.050.560.001.UA.IM.0714 86
Depolox
®
3 plus ReSIDUAl ANAlYZeR
eVoQUA W3T140188
3.7.4.4 Answer - Frame
The answer frame is transmitted by the slave because of a request frame of
the master.
Format of the answer frame:
Byte: 0-2 3 4 5 6 7 8 9-X Y Z
—————————————————————————
Name: SYN SB
SA ZA KB AB FC DU DC EB
Byte: Name: Function:
0-2 SYN Synchronization bytes
3 SB Start byte 68H
4 SA Slave address
5 ZA Destination address
6 KB Check byte
7 AB Number byte
8 FC Frame Check
9-X DU Data bytes
Y DC Data Check
Z EB End byte 16H
If no data format and no number of bytes (AB) is set in the request frame in
the check byte, the data format and the number of bytes are entered into the
answer frame from the address list.
Example: Request frame
00H 00H 00H 10H 07H 02H 00H 00H 19H 16H
—————————————————————————
SYN SB SA ZA KB AB FC EB
Answer to the example Request - Frame:
00H 00H 00H 68H 07H 02H 06H 02H 79H 00H 00H 8BH 16H
——————————————————————————
SYN SB SA ZA KB AB FC DU DC EB