ETAS ES430.1, Руководство пользователя

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4.6.3 Examples
Example 1
Fig. 4 - 4 on page 28 shows an example of an application with three concatenated ES400 modules with the same acquisition rates. The transfer
scheme for this configuration is shown in Fig. 4 - 5 on page 28.
Fig. 4 - 4 Time-Multiplex Data Transfer Between an ES400 Module Chain and a PC
Fig. 4 - 5 Transfer Scheme for Example 1 (Simplified, Not True to Scale)
In this example, the third module periodically generates 2
16
(65536) time slices each 100 microseconds long. Modules 1, 2 and 3 acquire measure -
ments with the same rate of 10 kHz each. Module 1, Module 2 and Module 3 link their measurements to each time slice (see Fig. 4 - 5 on page 28).
Independently of this, control variables can be transferred at the same time from the PC to the modules.
St ellgrößen
Messdat en
M1
Rat e: 10 kHz
Einkoppler
Auskoppler
Frame
Generat or
(inakt iv)
MODUL 1
St ellgrößen
Messdat en
M2
Rat e: 10 kHz
Einkoppler
Auskoppler
Frame
Generat or
(inakt iv)
MODUL 2
St ellgrößen
Messdat en
M3
Rat e: 10 kHz
Einkoppler
Auskoppler
Frame
Generat or
(10 kHz)
MODUL 3
Et hernet
100 Mbit /s
PC
Ethernet-Frame 1
M3 M2 M1 H R M3 M2 M1 H R M3 M2 M1 H R
t [µs]
200 0 100
Et hernet -Frame 2 Et hernet -Frame 65536
Periodendauer Frame-Generat or
M3 M2 M1 H R
Et hernet -Frame 3
M3 M2 M1 H R
Et hernet -Frame 4
M3 M2 M1 H R
Et hernet -Frame 5
300
500
400
H UDP/IP Header
R
Reserviert f ür zusät zliche
Kommunikation
Mn Messdaten von Modul n