Digital - 4-Wire Sdi-Interface; Digital - Bidirectional Rs485 Bus System - Beko METPOINT BDL compact Installation And Operating Manual
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9.7.3.2. Digital - 4-wire SDI-interface
Connection diagram 4-wire SDI-interface
Pin assignment - sensor
+ U
v
- U
v
+ I
OUT
SDI
9.7.4. Digital - bidirectional RS485 bus system
Connection diagram bidirectional RS485 bus system
Pin assignment - sensor
+ U
V
- U
V
Bus A (+)
Bus B (-)
METPOINT
BDL compact
®
+ U
V
- U
V
+ I
+
OUT
SDI
I
0/4 ... 20 mA
Plus (+) connection, voltage supply
Minus (-) connection, voltage supply
+ U
V
- U
V
+ A
- B
RS485
Plus (+) connection, voltage supply
Minus (-) connection, voltage supply
Non-inverted signal (+) from RS485 interface
Inverted signal (-) from RS485 interface
R
L
-
4... 20 mA
Function
Current output
Digital interface
(+) A / RS485
(-) B / RS485
Function
Installation and operating manual
+ U
V
1
- U
V
2
3
4
5
SDI
6
7
8
Pin assignment
BDL compact
PIN-1
PIN-2
PIN-2
PIN-6
+ U
V
1
- U
V
2
3
4
5
6
7
8
Pin assignment
BDL compact
PIN-1
PIN-2
PIN-7
PIN-8
+ U
V
- U
V
- U
V
SDI
+ U
V
- U
V
(+) A / RS485
(-) B / RS485
35
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