Siemens SIMATIC S5-90U System Manual page 380

Module Spectrum
Digital Input Module 8×24 V DC
L+
1
F
2
M
4
.0
3
.1
6
.2
5
.3
8
.4
7
.5
10
.6
9
.7
4
DIGITAL INPUT
8 x 24 V DC
6ES5 421-8MA12
1 2 3 4 5 6
180 K
1 3 5
2 4 6
L+ M
X.1 X.0 X.3 X.2 X.5 X.4 X.7 X.6
15-14
+9 V
GND
Data
7 9
8 10
Technical specifications
Number of inputs
Galvanic isolation
- in groups of
Input voltage L+
- rated value
- "0" signal
- "1" signal
Input current at "1"
signal typ.
Inherent delay
- from "0" to "1" typ.
- from "1" to "0" typ.
Length of cable
- unshielded max.
Rated insulation voltage**
(+9 V to )
- insulation group
Fault LED (red)
Connection of 2-wire
BERO proximity switches
- residual current
Current consumption
from +9 V (CPU) typ.
Power loss of the
module typ.
Weight approx.
* Times depend on voltage
** Relevant only for isolated assembly in the
ET 100U/200U
S5-90U/S5-95U
(6ES5 421-8MA12)
8
no
8
24 V DC
0 to 5 V
13 to 33 V
7 mA at 24 V
2.3 ms*
3.5 ms*
100 m (330 ft.)
12 V AC
1×B
no input voltage
L+/M
possible
1.5 mA
34 mA
1.6 W
190 g (6.7 oz.)
EWA 4NEB 812 6115-02b