Description / Abstract:
This SAE Recommended Practice defines a document for the format
of messages and data that is of general value to modules on the
data communications link. Included are field descriptions, size,
scale, internal data representation, and position within a massage.
transmitted.
In order to promote compatibility among all aspects of
electronic data used in heavy-duty applications, it is the
intention of the SAE Truck and Bus Low Speed Communications Network
subcommittee (formerly Data Format Subcommittee) (in conjunction
with other industry groups) to develop recommended massage formats
for:
a. Vehicle and Component Information – This includes all
information that pertains to the operation of the vehicle and its
components (such as performance, maintenance, and diagnostic
data).
b. Routing and Scheduling Information-Information related to the
planned or actual route of the vehicle. It includes current vehicle
location (for example, geographical coordinates) and estimated time
of arrival.
c. Driver Information-Information related to driver activity.
Includes driver identification, logs, (for example, DOT), driver
expenses, performance, status, and payroll data.
d. Freight Information_ Provides data associated with cargo
being shipped, picked up, or delivered. Includes freight status,
overage, shortage and damage reporting, billing and invoice
information as well as customer and consignee data.
This document represents the recommended formats for basic
vehicle and component identification and performance data. This
document is intended as guide toward standard practice and is
subject to change to keep pace with experience and technical
advances.