ETAS
Hardware Description
ES650.1 - User Guide
12
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Hardware Description
This chapter contains information on the following topics:
• ES600 Measurement Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
• ES650.1 A/D and Thermo Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
• Package Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• Housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
• Ports and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
• Maximum Input and Common-Mode Voltages. . . . . . . . . . . . . . . . . . . . 19
• Measurement Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1
ES600 Measurement Modules
The ES6xx series comprises a range of advanced and powerful measurement
and interface modules. All modules are designed for use under harsh environ
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mental conditions and are therefore ideally suited for automotive use. This
applies both to the housings of the ES6xx series and all cable connections. The
ability of these modules to operate under a wide range of ambient tempera
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tures and power supply voltages further contributes to their suitability for auto
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motive applications.
The compact and rugged housings of the ES6xx series allow easy mounting
even under difficult installation conditions. By installing the modules close to
the signal source, it is possible to avoid long signal lines that would corrupt
measurement signals. The housings of the ES6xx series stack easily to build
larger blocks of units.
The measurement modules provide a high sampling rate with high resolution
and accuracy. The accuracy is guaranteed across A/D and Thermo Modulethe
entire extensive ambient temperature range.
The interface modules provide the connection to the popular bus systems used
in motor vehicles and to various emulator probes (ETK).
Each module is equipped with a powerful Ethernet interface that ensures high-
speed data exchange with the host PC.
A synchronization and power management module makes it possible to con
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nect several measurement and interface modules to one Ethernet interface on
the host PC. This synchronization and power management module also
ensures simultaneous sampling of all measurement channels—even in large
module networks. The periodic synchronization signal is superimposed onto
the Ethernet signals without affecting data transfer. This excludes the possibil
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ity of a phase shift between the individual signals, even when measurements
are taken from different modules.
All modules of the ES6xx series have an automatic power saving feature. For
this purpose, the modules are equipped with a link signal detector that is con
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trolled directly by the Ethernet interface. As soon as a device connected to the
ES650.1 starts to send link signals via the Ethernet interface, the module is