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BBH SMX Series User Manual

BBH SMX Series
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Installation manual
HB-37420-810-01-25F-EN SMX100 Installation manual.docx Page 99 of 260
Version: 25F
4.2.3 Analog sensors
The basic modules SMX12A have two analog inputs with two input channels each. Only
2-channel sensors can generally be connected to this interface.
The internal signal processing takes place separately in the two channels with cross-comparison
of the results.
I
A
L
A
I
B
L
B
c
i
m
i
m
Erweiterungsbaugruppe 1
SDDC
Kommunikation
Sensor
Sensor
A
Sensor
B
X
X
U
U
Dual-channel sensor system with separate signal processing in two channels, diagnose by cross-comparison in the
PES
As with other sensor systems, a vast number of diagnostic measures has been implemented.
With respect to their type and effectiveness diagnostic measures can generally be classified
using the following table:
Diagnoses for sensors for position and/or speed detection:
Measure
DC
Note
Use
Cross-comparison of input
signals with dynamic test, if
short-circuits cannot be
detected (for multiple
inputs/outputs)
90
Comparison of the
analog input values with
identical characteristics
for both channels
Monitoring of dual-
channel systems with
identical characteristic of
the input signals
Cross-comparison of input
signals with immediate and
intermediate results in the logic
(L) and temporal as well as
logic program sequence
monitoring and detection of
static failures and short circuits
(for multiple inputs/outputs).
99
Comparison of the
analog input values with
diverse characteristic for
both channels. E.g.
inverse signal course,
etc.
Monitoring of dual-
channel systems with
diverse characteristic of
the input signals
expansion module 1
Communication

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BBH SMX Series Specifications

General IconGeneral
BrandBBH
ModelSMX Series
CategoryController
LanguageEnglish

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