Siemens Simatic S7-400 - Manual (Page 303)

Analog Modules
5-87
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Measuring Ranges
You set the measuring ranges by means of the measuring range modules on the
module and the “Measuring Type” parameter in STEP 7.
Table 5-55 Measuring Ranges of the SM 431; AI 8 x 14 Bit
Method Selected Measuring Range
(Type of Sensor)
Measuring Range
Module Setting
Description
U: Voltage " 80 mV
" 250 mV
" 500 mV
" 1 V
A You will find the digitized analog
values in Section 5.3.1 in the
voltage measuring range
" 2.5 V
" 5 V
1 to 5 V
" 10 V
2DMU: Current (two-wire
transmitter) 4 to 20 mA D To supply these transmitters with
current you must connect 24 V to
the L+ and M front connector
terminals.
You will find the digitized analog
values in Section 5.3.1 in the
current measuring range
4DMU: Current
(four-wire transmitter) 0 to 20 mA
4 to 20 mA
"
20 mA
C You will find the digitized analog
values in Section 5.3.1 in the
current measuring range
R-4L: Resistors
(four-conductor
connection)
48 W
150 W
300 W
600 W
6000
W
A You will find the digitized analog
values in Section 5.3.1 in the
resistance measuring range
R-3L: Resistors
(three-conductor
connection)
300
W
600 W
6000
W