Страница 1 мировой engineering стандарты общая спецификация

Diagnostic Mode
.
ECU: 
Electronic Control Unit. An ECU is a node on
a subnet.
Gateway: 
This is a special case MSSC that has
additional requirements to transfer data between
multiple subnets and may provide the wake-up
mechanism for one or more of the subnets.
HS-CAN: 
Generic reference for all dual wire High
speed buses. Includes, but not limited to the
Primary HS bus, Chassis Expansion bus, and
Powertrain Expansion bus.
LS-CAN: 
Generic reference for all single wire Low
speed buses. Includes, but not limited to the
Primary LS bus.
MS-CAN: 
Generic reference for all dual wire Mid
speed buses. Includes, but not limited to the
Primary MS bus
MSSC: 
Multiple Subnet Signal Consumer. An ECU
that is connected to multiple subnets but does not
provide wake-up features and does not transfer
data between subnets.
Node: 
An ECU on a network.
Permanent Diagnostic CAN Identifiers: 
These
are the CAN Identifiers supported by an ECU
which are used to support the transfer of diagnostic
services between the tester and an ECU, or the
tester and multiple ECUs.
SPS: 
Service Programming System
SPS_PrimeReq CANId: 
This is a special case
CANId that is used to receive diagnostic requests
during SPS programming for SPS_TYPE_C ECUs.
SPS_PrimeRsp CANId: 
This is a special case
CANId that is used to transmit diagnostic
responses during SPS programming for
SPS_TYPE_C ECUs.
SPS_TYPE_A or SPS_TYPE_B or SPS_TYPE_C
ECU: 
These terms refer to ECUs which are
programmable via the SPS. SPS programmable
ECUs utilize the utility file concept for
reprogramming. The differences between an
SPS_TYPE_A, SPS_TYPE_B and SPS_TYPE_C
ECU is what portion of the ECU is programmed,
and whether or not the ECU is capable of using its
permanent diagnostic CAN Identifiers during the
programming event. Refer to paragraph 9.1 of this
specification for further definition of these terms.