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S5-115U Manual
10.2
Analog Input Module 460-7LA12
Switched-mode
regulator
Clock
pulse
Mode
selectors
I
II
Address
decoder
Control signals
Address bus
A/D
Analog-digital converter (ADC)
ADUS
ADU processor
MUX
Multiplexer
Figure 10-1. Block Diagram with Signal Interchange between
EWA 4NEB 811 6130-02b
L+
L –
8 process signals
E0
Range
card 0
Relay
0 V +5 V
– 5 V
MUX address
ADCP
D
Absolute value,
sign
Galvanic isolation
Address
Memory (RAM)
MUX
32 x 8 bits
S5 bus
CPU
the 460 Analog Input Module and the CPU
Analog Value Processing
S+
E7
Range
card 1
I const.
2.5 mA
Relay
MUX
Wirebreak
detection
A
Two's
complement
Data driver
Bus driver
Data bus
S –
I
OFF
WIREBREAK
(Conn. 26)
.
10-3
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