Vector VX1000 System Manual - 4.1 General Information
4 XCP Slaves
VX1000
System Manual
Version 3.3.0
40
4.1 General Information
XCP slaves
The
VX1000
System provides 3 XCP slaves on configurable TCP/UDP ports.
The Config XCP slave is used to configure the
VX1000
System and is used by the
VX1000
System configuration tools, only. This slave is available via TCP, only.
The Fully-Featured XCP slave (named online in the VXparameters) supports STD,
CAL, DAQ, PGM, PAG and STIM for the ECU.
The Limited XCP slave supports STD, CAL, DAQ and STIM for the ECU.
Restrictions
For the Fully-Featured slave and the Limited XCP slave these limitations apply:
>
Only dynamic DAQ list allocation is supported
>
MAX_DTO is limited to 255
>
Not all features are implemented for all devices
Network ports
The network ports of all XCP slaves can be configured. For the Fully-Featured XCP
slave and the Limited XCP slave the UDP port can be set to a different port number
than the TCP port.
Note
It is recommended to use the default TCP and UDP ports for the XCP slaves.
Config XCP slave (TCP): 5556
Fully-Featured XCP slave (TCP/UDP): 5555
Limited XCP slave (TCP/UDP): 5554
Note
The Config XCP slave is essential for system configuration. If a Measurement tool
connects to this port, it will not be able to access ECU data.
4.2 XCP Protocol Parameters
Reference
All settings described in this chapter can be configured using VXconfig.
XCP protocol
parameters
Some XCP protocol parameters can be configured to adapt the
VX1000
System to
Measurement tools with limited XCP protocol support.
MAX_CTO
MAX_DTO
The XCP MAX_CTO and XCP MAX_DTO parameters configure the maximum size of
CTO and DTO packets supported by the XCP slave. For the VX1000 System it is
recommended to set both parameters to the maximum supported value of 255.
SERV_TEXT
XCP SERV_TEXT messages are used by the slaves to give additional information or
user guidance if problems or errors are encountered. If a tool cannot process SERV_
TEXT messages, this feature can be disabled.
DTO ID
For the DTO ID field type only relative ODT numbers are supported by the VX1000
XCP slaves. As a maximum of 255 DAQ lists is supported, “Rel. ODT + DAQ Byte” is
the recommended header type.
DAQ Overload
Indication
A DAQ Overload can be indicated in the MSB of the DTO PID or as additional XCP
event or not at all. The recommended setting is PID MSB, although it limits the num-
ber of DTOs per DAQ list.