C.2
RS422 point-to-point connection
Fig. Appendix 8: Example of DDLS 170 – RS422 (INTERBUS module) connection
C.3
DDLS 170 – Profibus connection
Fig. Appendix 9: Example of DDLS 170 – Profibus connection
TxD+
TxD–
RxD+
RxD–
GND
RxD+
RxD–
TxD+
TxD–
GND
5
4
2
1
11
2
1
5
4
11
RS422
DI
DI
DO
DO
DO
DO
DI
DI
12
12
+ UB
+ UB
RS422
PLC
PLC
DDLS 170.1
DDLS 170.2
A
B
Master
B - B, A - A bridged internally
GND
GND
11
11
12
12
+ UB
+ UB
Slave
DDLS 170.1
DDLS 170.2
4 A
1 B
5 A'
2 B'
A
B
A 4
B 1
A
B
GND
GND
11
11
12
12
+ UB
+ UB
DDLS 170.1
DDLS 170.2
A 4
B 1
4 A
1 B
e.g. bus
terminal
Slave
These data are only valid for the previous data transmission systems DDLS 170.1
and DDLS 170.2!
54
DDLS 170
Leuze electronic