ETAS
Functional Description
ES600.2 - User Guide
21
Module compound
The connections "ETH1" to "ETH6" connect the ES600.2 module with additional
ES600 modules, measuring, calibration and rapid prototyping modules. The
cascadability also allows implementing larger blocks of measuring and inter
-
face modules.
Power supply of connected modules
The ES600.2 can also take on the power supply of connected ES4xx modules
and ES6xx modules via the Ethernet connecting cable. Observe the maximum
output current at the Ethernet interfaces when cascading the modules.
Other modules connected via Ethernet cable must be cabled separately with
the power supply.
"Wake-Up" function
The Ethernet interfaces "ETH1" to "ETH6" support the "Wake-Up" function (see
chapter 5.5 on page 21).
Compatible modules
A list of the compatible modules is located in chapter 7.10.4 on page 36.
5.4
Time synchronization
To synchronize the measuring channels in a module compound, the modules
of the system provide a global time clock.
Modules connected to the "FE-HOST" interface can synchronize the ES600.2
(SYNC-IN). If no synchronization signal is received at the "FE-HOST" connec
-
tion, the ES600.2 automatically takes over the function of the master module
for the synchronization.
The time synchronization unit of the ES600.2 master synchronizes the con
-
nected modules via Ethernet lines. At the connections "ETH1" to "ETH6", the
synchronization signal is passed on to connected modules (SYNC-OUT). The
slave modules adjust to the cycle specified by the master module.
A phase shift of the individual measuring signals to each other is ruled out, even
if the measured values are acquired from different modules.
The data of all connected modules of the series ES4xx, ES51x, ES6xx and the
XETK are acquired synchronously (ETAS device synchronization).
5.5
"Wake-Up" function
If the system is used in a vehicle, the energy consumption must be as low as
possible since the measuring setup is supplied by a battery. For this reason, the
ES600.2 module is equipped with a link signal detector at all connections for
automatic power-save function.
With the "Wake-Up" function, the module can automatically switch between the
operating states "Standby" and "On".