Siemens ET7 Series Especificaciones Pagina 54

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DSB75 Development Support Board Rev. B1 Hardware Description
Strictly confidential / Released
s
DSB75_hd_v08 Page 54 of 94 29.09.2005
B2B
X100
X101
DACOUT
AD1_IN
AD2_IN
DACOUT
AD1_IN
AD2_IN
79
41
2
3
38
40
37
35
X551
13
13
X552
X560
X561
X562
GND
Filter:
Test point strips
12
1
2
DACOUT_F
DACOUT_F
AGND AGND
57
34
GND
Figure 31: Analog interface
Table 22: Pin assignment of the analog interface
Pin Name I/O Description X100 signal
name
Switch
setting
for loop
Remark
X101/37 AD1_IN I ADC Input 1 AD1_IN X551:3
X101/35 AD2_IN I ADC Input 2 AD2_IN X552:3
If no loop required
Keep switches in
position 1
X101/34 AGND Ground for
ADC Inputs
AGND
X101/38 DACOUT O DAC Output
(PWM)
DACOUT
X561/1 DACOUT_F O DAC Output
(filtered)
DACOUT If no loop required:
Jumper bridge X561
can be removed
X101/40 GND Ground for
DAC Output
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