Siemens S7-400 ユーザーズマニュアル
Analog Modules
5-77
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
A5E00069467-07
5.19
Analog Input Module SM 431; AI 8
14 Bit;
(6ES7 431-1KF10-0AB0)
Characteristics
The analog input module SM 431; AI 8
14 Bit has the following features:
•
8 inputs for voltage/current measurement
•
4 inputs for resistance and temperature measurement
•
Unlimited measuring range selection
•
14-bit resolution
•
Particularly suitable for measuring temperatures
•
Temperature sensor types can be parameterized
•
Linearization of the sensor characteristic curves
•
Supply voltage 24 VDC required only for the connection of 2-wire transmitters
•
Analog section isolated from CPU
•
The maximum permissible common mode voltage between the channels and
between the channel and the central ground point is120 VAC
between the channel and the central ground point is120 VAC
Block Diagram of the SM 431; AI 8
14 Bit
CH0
CH1
CH6
CH7
+5V
0V
0V
– 15V
+ 5V
+ 15V
L+
M
M
Bus S7-400
Bus control
ENABLE
MUL
TIPLEXER
OPT
O RELA
Y
A
D
Meas.
range
module 0
Meas.
range
module 3
Bus S7-400
Bus S7-400
Figure 5-27 Block Diagram of the SM 431; AI 8 x 14 Bit