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4.3. Connection of METPOINT
4.3.1. Bidirectional RS485 bus system
Connection by means of plug-type connector A.
Connection diagram for METPOINT
Pin assignment - sensor
PIN-1
+ U
V
PIN-2
Bus A (+)
PIN-4
Bus B (-)
PIN-3
- U
V
23
BDL
®
SF53 and METPOINT
®
+
2
A
q
-
V
4
B
1
+ U
V
3
- U
RS485
V
Function
Plus (+) connection, power supply
Non-inverted signal (+) from RS485 interface
Inverted signal (-) from RS485 interface
Minus (-) connection, power supply
BDL
®
WHITE
BLACK
BROWN
BLUE
Wire colour
brown
white
black
blue
Installation and operating manual
1
2
3
4
5
6
7
8
9
Pin assignment - BDL
PIN-7
+ U
PIN-1
(+) A / RS485
PIN-2
(-) B / RS485
PIN-8
- U
METPOINT
V
V
SF53
®
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