Siko MSA510/1, Installation Instructions Manual

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MSA510/1
Commissioning English
MSA510/1 · Date 04.05.2016 · Art. No. 83520 · Mod. status 38/16
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5.4 Protocol Description SIKONETZ3
The SIKONETZ3 protocol is a bus-compatible protocol based on interface
RS485. The interface parameters are as follows:
19200 Baud; 8 Bit; no Parity; 1 Start bit; 1 Stop bit
The protocol setup follows the Master-Slave-System; the sensor has only
the slave function. There are 2 telegram lengths:
3 Byte:
Address
Byte
Com-
mand
Check
Byte
6 Byte:
Address
Byte
Com-
mand
Data
Byte
Low
Data
Byte
Middle
Data
Byte
High
Check
Byte
The address byte is composed as follows:
1 0 A0 A1 A2 A3 A4 0 RR L 1
Start Stop
The check byte results from an EXOR-interconnection of the remaining two
or five bytes of the telegram.
A0 ... A4: binary coded address 1 ... 31; address 0 defined for master
RR: broadcast bit = 1; command valid for all sensors; sensors do not reply
L: length bit: 1 = short telegram (3 bytes); 0 = long telegram (6 bytes)
MSA510/1 supports the following commands of SIKONETZ3 protocol:
Column Signification
Hex Hexadecimal value of the command.
TX Length of telegram from master to sensor.
RX Length of telegram from sensor to master.
S Transmitted parameter is permanently stored in the sensor.
P For this command programming mode has to be activated
(command 0x32; 0x33).
R This command can be broadcast.