Bosch Rexroth KE310 Bedienungsanleitung Seite 20

20/64 Bosch Rexroth AG | Electric Drives and Controls
5 Commissioning
5.4 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 manual.
The 25-pin plug provides the connections for
an RS232 or RS422 interface. It is only pos-
sible to use one of these interfaces. The inter-
face used is determined by the wiring of the
pinned-up plug.
13
25
Figure 10: Sub-D plug, 25-pin (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 5:
1
14
KE310 | 3 609 929 986/1.0
5.4.1 Circuit diagram examples for
the use of RS 422
Receiver
KE310
+5 V
RxD_B
RxD_A
Figure 11:
Sender
KE310
TxD_Z
18
min.
120 Ω
19
TxD_Y
Only when
needed
7, 24, 25
Figure 12:
Sender
1 kΩ
14
330 Ω
11
Only when
1 kΩ
needed
7, 24, 25
Receiver