Siemens Simatic M7-400 Reference Manual page 356

Analog Modules
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
U: Voltage
4DMU: Current (four-wire
transmitter)
TC-L: Thermocouple (linear)
(temperature measurement)
Default Settings
The default settings of the module in STEP 7 are "Thermocouple (linear)" for the
measuring method and "Type J" for the measuring range. You can use this
combination of measuring method and measuring range without parameterizing the
SM 431; AI 8
5-140
Measuring Range
"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
"3.2 mA
"5 mA
"10 mA
"20 mA
0 to 20 mA
4 to 20 mA
Type B
Type N
Type E
Type R
Type S
Type J
Type L
Type T
Type K
Type U
16 Bit in STEP 7.
S7-400, M7-400 Programmable Controllers Module Specifications
Description
You will find the digitized analog
values in Section 5.3.1 in the
voltage measuring range
You will find the digitized analog
values in Section 5.3.1 in the
current measuring range
You will find the digitized analog
values in Section 5.3.1 in the
temperature range
A5E00069467-07