Interface Description Ssi; Function Diagram; Output Format "Standard - HYDAC ELECTRONIC HLT 2100-R1 Notice D'utilisation

HLT 2100 / HLT 2500 SSI

6 Interface description SSI

6.1 Function diagram

SSI sensor
SSI - Geber
Data
Datenregister
register
Monoflop

6.2 Output format "Standard"

In idle state, the data+ and the clock+ are +5V (high). The data transmission starts with
the MSB and is initiated with the first falling pulse edge. A data change takes place when
the pulse edge is positive. The data import takes place, depending on the receiver, with
rising or falling pulse edge.
After the pulse process has terminated, the data cables are kept on 0V (Low) for the
duration of the mono time t
transmission frequency of approx. 80 kHz. The upper limit frequency results from the
sum of all signal runtimes and is additionally limited to 820 kHz by the installed filter
circuits.
Pulses
T a k t +
(max. 32 pulses)
( m a x . 3 2 I m p u l s e )
Data transmission
D a t e n ü b e r t r a g u n g
(normal pulse sequence)
( T a k t p o l u n g n o r m a l )
Data transmission
D a t e n ü b e r t r a g u n g
(inverted pulse sequence)
( T a k t p o l u n g
v e r t a u s c h t )
The inverted signal data and pulses are not shown.
Edition: 2017-08-31
Commu-
nication
Datenstrecke
route
Daten + Data +
M
U
X
Daten - Data -
Takt + Pulse +
Takt - Pulse -
. The time t is set to 20 µs and defines the lowest
M
M
Signal sequence to the controller
S i g n a l v e r l a u f a n d e r S t e u e r u n g
M S B
M S B
HYDAC ELECTRONIC GMBH
+
Recipient
Empfänger
-
+
Pulse
Taktgenerator
generator
Empfänger
Recipient
-
L S B
L S B
15
E
t
M
t
M
Part No.: 669999