Technical Description; Programmable Controller Design - Without External I/Os; Design Of The S5-90U - Siemens SIMATIC S5-90U System Manual

S5-90U/S5-95U
2

Technical Description

This chapter describes the design and principle of operation for the PLCs.
2.1

Programmable Controller Design - without External I/Os

The following sections discuss programmable controllers but do not discuss external modules. Both
controllers have a limited number of inputs and outputs available on board.
2.1.1

Design of the S5-90U

S5-90U: LEDs, Controls and Interfaces
1
2
3
SIEMENS
4
SIMATIC
S5-90U
5
6ES5 090-
8MA01
1 2 3
4 5 6
32.0
6
Sensor supply voltage 24 V DC/0.1 A
1
Terminals for connecting the power supply
2
Terminals for connecting the digital inputs (I 32.0 to I 32.7)
3
Receptacle for E(E)PROM submodule
4
RUN/STOP LEDs: Green LED "RUN", red LED "STOP".
5
Terminals for connecting the digital outputs (Q 32.0 to Q 32.5)
6
Terminal for connecting the interrupt input (I 33.0)
7
Terminal for connecting the counter input (I 33.1, IW 36)
8
Battery compartment
9
Interface for a programmer, a PC, an OP, or the SINEC L1 bus
10
Interface for an IM 90 interface module for expansion with
11
S5-100U modules
RUN/STOP switch
12
Figure 2-1. S5-90U LEDs, Controls and Interfaces
EWA 4NEB 812 6115-02b
+ -
N 230 115 32.0 .1 .2
24V DC
V V
Power AC 100mA
OUTPUT
32.1 32.2
.3 .4 .5 .6 .7 33.0 .1
INPUT
10x24VDC
RUN
Battery
IM 90
STOP
OUTPUT
6x RELAIS
32.3 32.4 32.5

Technical Description

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9
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2-1