R911323106 / 02 | Rexroth IndraControl VCP 35.2
Interfaces
7.2.1
RS485 (X6-SER1)
7.2.1.1 Pin Assignment
The interface is suitable for point-to-point and for multi-point connec-
tions.
The wires belonging together are marked with „A" and „B". Some
descriptions refer to the pins with „+" and „-" , where A = + and B = -.
Signal Logic 1
U
Signal Logic 0
U
Fig. 7-6: 25 pin D-SUB female connector strip
Connector in the small operator terminal: 25-pin D-SUB female con-
nector strip
Pin Designation Function
8
T(A)
Transmitted data (+)
9
T(B)
Transmitted data (-)
11
SGND
Signal Ground
22
R(A)
Received data (+)
23
R(B)
Received data (-)
Fig. 7-7: Pin assignment RS485
The D-SUB connector strips must be shielded sufficiently. See chapter
"Shielding D-SUB Connectors" on page 7-12.
Electric Drives and Controls | Bosch Rexroth AG
- U
<= -0.3 V i.e. (U
A
B
A
- U
>= +0.3 V i.e. (U
A
B
7-5
< U
)
B
> U
)
A
B