Страница 1 мировой engineering стандарты общая спецификация

Page 308
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
© Copyright 2010 General Motors All Rights Reserved
February 2010
Page 308 of 336
Table C26: Definition of Subnet Config List for LIN Busses dataIdentifier
DID Description
R/W Data Type
Len
$BE 
Subnet_Config_List_LIN (SCLLIN)
R/W
8
BIN
≥ 2
This DID contains the SCLLIN for all Local Interconnect Network (LIN) buses supported by the LIN bus
Master. The DID shall include all LIN subnets that are connected to the Master. Two bytes shall be used
per LIN network as described in the table below. The length of the DID will be determined by the number
of connected LIN networks, i.e., length is equal to 2*n, where n is the number of connected LIN
networks.
The tool can write the configuration information of the LIN network(s) into the GMLAN node which is
also the master of the LIN network, for the purpose of network management.
The most significant bit of the two bytes for each LIN subnet shall indicate the LIN master configuration
status (CS) for this subnet. A logic “1” indicates that the LIN master has been configured for this subnet.
The remaining bits each represent one ECU (with unique Diagnostic Address, see Appendix D) that can
exist on the subnet. A logic “1” indicates that a given ECU is present on the vehicle. The bit mapping of
ECUs must be documented in a CTS, SSTS, or supplemental diagnostic specification.
Example:
LIN bus 1 is configured.
DDM Driver Door Module
DDS Driver Door Switch
W
8 
=
The writing of this DID may not be allowed in certain implementations. The CTS/SSTS or other
ECU specific diagnostic document referenced by the CTS or SSTS shall indicate if this DID can be
written.
Position
1
LIN bus 1
2
LIN bus 1
3
LIN bus 2
4
LIN bus 2
Bit location
7
6 to 1
0
7 to
2
1
0
7 6 to 1 0
7 6 to 1 0
Bit state
1
…
0
0
1
1
0
…
0
0
…
0
DA (hex)
N/A
…
---
---
A4
A0
N/A
…
---
---
…
---
ECU name
CS
…
---
--- DDS DDM CS
…
---
---
…
---
Hex value
80
03
00
00
Position
2n -3
LIN bus n-1
2n -2
LIN bus n-1
2n - 1
LIN bus n
2n
LIN bus n
Bit location
7
6 to 1
0
7 6 to 1
0
7 6 to 1 0
7 6 to 1 0
Bit state
0
…
0
0
…
0
0
…
0
0
…
0
DA (hex)
N/A
…
---
---
…
---
N/A
…
---
---
…
---
ECU name
CS
…
---
---
…
---
CS
…
---
---
…
---
Hex value
00
00
00
00