User's Manual
This document is the property of KYMATI GmbH and must not be copied or disclosed without its written authorisation.
© - KYMATI GmbH – 2020
KY.MAN.0105 (4.0) KY-LOC 1D.02.01 User Manual
Doc.- No.: KY.MAN.0105
Version: 4.0
Date: 17.05.2021
Page: 30 of 43
through a bitwise XOR operation between the original byte and the modifier byte 0x20. During
the decoding step one must search for the byte 0x7D, remove it and apply the modifier byte
through a bitwise XOR operation to the following byte. All other bytes not listed in the transition
table are not altered. The maximum size of such a single protocol frame is 258 bytes, if one
has to translate every single byte in our message.
Ethernet (TIA-568A/B)
The Ethernet is a standard 100 BASE-T Ethernet according to IEEE 802.3 Clause 24. The
wiring is according to TIA-568A/B.
When communicating with the KYMATI Radars through an Ethernet
connection, the messages are directly encapsulated into UDP packets without
any need for byte stuffing. During bootup, the device will automatically send
UDP packets to 192.168.75.1 on port 27513.
All data types and data structure fields use the little-endian byte ordering (also
known as Intel byte order).
A KYMATI Radar message has a maximum size of 128 bytes and consists of three parts: A
header field, a CRC field and a dynamic field which depends on the actual content being
transmitted.
The header part with a size of 8 bytes is described in the following table:
Field
Offset
Datatype
Description
Version
0
Unsigned Integer (16 Bit)
Version of the Protocol
Current Version: 2
ContentType
2
Unsigned Integer (16 Bit)
Specifies the type of the
content specific data
field: see Chapter 4 for
possible values.
Source Bus Identifier
4
Unsigned Integer (8 Bit)
Field which contains the
identifier of the source
device on the bus.
Host/Controller Device is
always 0
Destination Bus Identifier
5
Unsigned Integer (8 Bit)
Field which contains the
identifier of the
destination device on the
bus. Host/Controller
Device has always 0.
Source Routing Identifier
6
Unsigned Integer (8 Bit)
Device Internal Source
Address
Destination Routing Identifier
7
Unsigned Integer (8 Bit)
Device Internal
Destination Address