Analog Modules
5-140 S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Measuring Ranges
You set the measuring ranges by means of the “Measuring Range” parameter in
STEP 7.
Table 5-77 Measuring Ranges of the SM 431; AI 8 x 16 Bit
Method Selected Measuring Range Description
U: Voltage "25 mV
"50 mV
"80 mV
"100 mV
"250 mV
"500 mV
"1 V
"2.5 V
"5 V
"10 V
1 to 5 V
You will find the digitized analog
values in Section 5.3.1 in the
voltage measuring range
4DMU: Current (four-wire
transmitter) "3.2 mA
"5 mA
"10 mA
"20 mA
0 to 20 mA
4 to 20 mA
You will find the digitized analog
values in Section 5.3.1 in the
current measuring range
TC-L: Thermocouple (linear)
(temperature measurement) Type B
Type N
Type E
Type R
Type S
Type J
Type L
Type T
Type K
Type U
You will find the digitized analog
values in Section 5.3.1 in the
temperature range
Default Settings
The default settings of the module in STEP 7 are “Thermocouple (linear)” for themeasuring method and “Type J” for the measuring range. You can use thiscombination of measuring method and measuring range without parameterizing theSM 431; AI 8 16 Bit in STEP 7.