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Interfaces
English, Revision 07, Date: 07.03.2018
25
3
Interfaces
The steering controller has several interface options providing data transmission.
These include 2 CAN, 1 Profibus, 1 Ethernet and 4 serial RS232 interfaces. Addition-
ally the optional internal radio modem can be accessed via an integrated interface.
This chapter provides an overview of the different interfaces. In the annex of the refer-
ence manual you will find a tabular listing of the data actually transferred.
NOTE!
You will find the hardware description of the interfaces in the pro-
vided user manual for control unit HG 61430.
3.1
CAN Bus
Detailed specifications of the CAN messages are described in the reference manual.
3.1.1
CAN 1
Interface 1 is responsible for the communication of general functions of the steering
controller. These are:
•
status information of the steering controller
•
steering angle, nominal velocity etc.
•
position output of internal sensor fusion
•
communication with vehicle control unit (segments, status of vehicle, etc.)
•
communication with transponder antenna
•
communication with gyro
•
communication with IO extension
3.1.2
CAN 2
Interface 2 is responsible for the communication of the additional functions of the
steering controller. These include:
•
communication with the laser scanner
•
communication with the steering servo
•
communication with the angle sensor (for backward movement of the
trailer)
•
communication with guide wire antenna
HG 73350
•
communication with evaluation unit for 2 cameras
HG 738840
•
command box of the gyro
•
remote control of the basic features with CAN Bus