ETAS
Hardware Description
ES413.1 - User’s Guide
21
4.2
Block Diagram
Fig. 4
-
2
Block Diagram
The ES413.1 is a module with four identical sensor channels, two shared Ether
-
net interfaces, a power supply and a integrated sensor connection cable.
The integrated sensor connection cable consists of four identical cable sec
-
tions in different length to which four sensors can be connected. Each cable
section is assigned to an ES413.1 measurement channel and wired according
to the same scheme.
The ES413.1 is deliverable in three versions with differently assembled sensor
connection cable (see chapter 3.4.1 on page 17).
4.3
Sensor Channels
All sensor channels of the ES413.1 are identical. Every sensor channel consists
of the function groups Signal Processing and Filter as well as Sensor Power
Supply.
4.3.1
Signal Processing and Filters
Fig. 4
-
3
Signal Processing and Filters of a Sensor Channel
Channel 4
...
FPGA
Et hernet
Phy
Ethernet
Traff ic
Det ection
100
MBit /s
Ethernet
Connect or
(Host
direction)
Synchronous Sampling
M
eas
u
rem
ent
C
o
nt
rol
ler
D
iag
no
st
ic
Un
it
Ti
m
e
Sy
n
chr
on
iz
a
ti
o
n
Un
it
Et hernet
Phy
100
MBit/s
Ethernet
Connector
On
Automatic
Voltage
Regulat or
5...50V
Channel 1
+/-0,1 V
+/-1 V
+/-10 V
+/-60 V
16-Bit A/D
Converter
FIR-Filter
16-Bit D/A
Converter
0, 5…15V
Overload
Detection
Frame
Generat or
P
ro
toc
ol
E
ngi
n
e
ES413
f
C,FIR
Analog Input +
Low pass Filter
A
D
Adjustable Gain
A/D Convert er
Analog Input -
Volt age Range
f
C,AAF
f
S,AD
Control
Digital Filter,
Decimator
Buf fer
Sample 1
Sample 2
Sample 3
Sample n
f
S,INCA
CTRL
ADC