ES581.4 - User’s Guide 13
ETAS Hardware Description
2 Hardware Description
The “Hardware Description” chapter describes the features, functions, areas of
application, interfaces and indicators, and the block diagram of the ES581.4
CAN Bus Interface USB Module.
2.1 Overview
The ES581.4 is a dual-channel, compact and cost-effective solution for connect-
ing the PC to a vehicle CAN (Controller Area Network) bus or the CAN port of an
individual electronic control unit (ECU). It is a easy-to-handle solution for CAN
access for PC measurement, calibration and diagnostics.
Used in conjunction with ETAS' INCA and ODX-LINK applications, the ES581.4
provides a single solution, eliminating the need to deploy several different tools
for ECU calibration and diagnostics applications.
Fig. 2-1 ES581.4
The ES581.4 connects with a PC over USB and establishes a direct CAN connec-
tion. The included Y cable (see chapter 6.1 on page 37) enables the access of
both CAN interfaces to the CAN bus.
There is only minimum installation and configuration effort and no external
power supply is needed.
2.2 Features
The ES581.4 is part of the family of compact ETAS bus interface modules and is
involved in the process of continuous firmware and software upgrades.
2.2.1 General Features
General features of the ES581.4 are:
• Process an average 96% bus load on both channels up to 500 kBaud
• No external supply voltage necessary
• Part of the ETAS tool suite – supported by INCA
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