Siemens MICROMASTER 420 Operating Instructions Manual page 75

Issue 07/04
3.5.5.6 Analog input (ADC)
Value x1 of ADC scaling
P0757 =...
Value y1 of ADC scaling
P0758 =...
This parameter represents the
value of x1 as a % of P2000
(reference frequency).
Value x2 of ADC scaling
P0759 =...
Value y2 of ADC scaling
P0760 =...
This parameter represents the
value of x2 as a % of P2000
(reference frequency).
Width of ADC deadband
P0761 =...
Defines width of deadband on
analog input.
ADC channel
3.5.5.7 Analog output (DAC)
CI: DAC
P0771 =...
Defines function of the 0 - 20 mA analog output.
Smooth time DAC
P0773 =...
Defines smoothing time [ms] for analog output signal. This parameter enables smoothing
for DAC using a PT1 filter.
Value x1 of DAC scaling
P0777 =...
Value y1 of DAC scaling
P0778 =...
Value x2 of DAC scaling
P0779 =...
Value y2 of DAC scaling
P0780 =...
Width of DAC deadband
P0781 =...
Sets width of deadband in [mA]
for analog output.
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0
0 V
0.0 %
10 V
100.0 %
0 V
KL1
P0756
P0753
+10 V
KL3
A
ADC
KL4
type
D
0.0 %
0
100.0 %
20
0
DAC channel
Function
r0xxx P0771
xxx
P0771 = xxx
P0761 > 0
||
0 < P0758 < P0760 0 > P0758 > P0760
%
100 %
4000 h
max
P0760
P0758
P0757
P0761
P0757 = P0761
min
P0761
ADC
ADC
dead
scaling
zone
r0752
1.7 V
1
0
r0722
3.9 V
r0722.3
mA
20
P0780
y
2
P0781
P0778
y
1
P0777
P0781
P0773
DAC
scaling
3 Functions
x
10 V
100%
P0759
r0754
P1000 = 2
Setpoint
P0704 = x
Function
2 ms
P0779 100 % %
x x
1 2
r0774
DAC
D
dead
A
zone
V
21
75