Bosch Rexroth KE300 Manual Del Usuario página 17

3 609 929 721/1.2 | KE300
5 Initial Operation
5.5 Interface X 13: RS232/RS422
The interface X 13 is intended for connecting
data collection terminals, bar code readers,
etc.
Functionality depends on the present func-
tional scope of the firmware. This is de-
scribed in the system handbook.
The 25pin plug provides the connections for
an RS232 or RS422 interface. It is only pos-
sible to use one of these interfaces. Determi-
nation of the used interface arises from the
wiring of the pinned-up plug.
13
25
Fig. 10: SUB-D-plug,
25pin (male)
Pin Signal Description/Function
1 NC
2 TxD RS232 Send
3 RxD RS232 Receive
4 RTS RS232 Request Send
5 CTS RS232 Enable Send
6 NC Not Connected
7 ISO_GND Reference Potential Interface
8 NC Not Connected
9 - -
10 - -
11 RxD_A RS422 Receive +
12 - -
13 - -
14 RxD_B RS422 Receive –
15 NC Not Connected
16 NC Not Connected
17 NC Not Connected
18 TxD_Z RS422 Send +
19 TxD_Y RS422 Send –
20 DTR RS232 Data Terminal Ready
21 NC Not Connected
22 - -
23 - -
24 ISO_GND Reference Potential Interface
25 ISO_GND Reference Potential Interface
RS422
Table 6:
Electric Drives and Controls | Bosch Rexroth AG 17/52
1
14
5.5.1 Circuit Diagram Examples for
the use of RS 422
Receiver
KE300
+ 5 V
1 kΩ
RxD_B
RxD_A
1 kΩ
Fig. 11:
Sender
KE300
TxD_Z
18
19
TxD_Y
only when
needed
7, 24, 25
Fig. 12:
Sender
14
330 Ω
11
only when
needed
7, 24, 25
Receiver
min.
120 Ω