Siemens Simatic S7-400 - Manual (Page 292)

Analog Modules
5-76
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 5-50 Measuring Ranges of the SM 431; AI 8 x 13 Bit
Method Selected Measuring
Range
Description
U: Voltage ±( 1 V
1 to 5 V
±( 10 V
You will find the digitized analog values in
Section 5.3.1 in the voltage measuring
range
2DMU: Current (two-wire
transmitter) 4 to 20 mA You will find the digitized analog values in
Section 5.3.1 in the current measuring
range
4DMU: Current
(four-wire transmitter) 4 to 20 mA
" 20 mA
You will find the digitized analog values in
Section 5.3.1 in the current measuring
range
R-4L: Resistance
(four-conductor
connection) 600
W
You will find the digitized analog values in
Section 5.3.1 in the resistance measuring
range
Default Settings
The default settings of the module are “Voltage” for the measuring method and
“
"
10 V” for the measuring range. You can use this combination of measuring
method and measuring range without parameterizing the SM 431; AI 8 13 Bit in
STEP 7.