1
Device
2
Connection cable 1:1 (female connector, M12, 17-pin, A-coded / male connector, M12, 17-pin, A-coded)
3
Connection module: female connector, M12, 17-pin, A-coded
4
Device: male connector, M12, 17-pin, A-coded
Function of switch S7
Table 49: Switch S7: Term 485
Switch setting Function
ON Terminates the RS-422 receiver in the device to improve the noise ratio
on the line.
OFF No termination
NOTE
User of the RS-422 data interface:
•
The relevant interface drivers for the device comply with the standard in accor‐
dance with RS-422 and RS-485.
•
The connection shown above is configured for operation of the host with perma‐
nently activated drivers (often described as “RS-422 operation”), i.e. not RS-485
operation.
•
Activate the RS-422 data interface (“Point-to-Point” option) in the device with a
configuration tool, e.g. the configuration software SOPAS ET.
14.6.5 Wiring serial host interface RS-485 of the device in CDB650-204
Device = RFU62x-101xx (Ethernet variant)
CDB650-204
Host
1
.
.
.
TD+
TD‒
RD+
RD‒
RD+/TD+
RD‒/TD‒
RD+/TD+
- RS-485 network: 3
RD‒/TD‒
GND
GND
GND
Shield 4
GND
11
12
1
5 5
6
11
12
6
33
T+
43
T‒/TxD
34
R+
44
R‒/RxD
42
GND
6
Shield
RS-485
RS-485
485
422
S6 : RS
ON
OFF
S7: Term 485
S6
422
S7
OFF
120 Ω
485
3
1
7
2
6
5
4
8
13
14
17
15
9
10
12
16
11
3
1
7
2
6
5
4
8
13
14
17
15
9
10
12
16
11
Device 1
Cable 2
6 5
Figure 59: Wiring data interface RS-485 of the device in the connection module CDB650-204
1
Device
2
Connection cable 1:1 (female connector, M12, 17-pin, A-coded / male connector, M12, 17-pin, A-coded)
3
RS-485 network
4
Shielding
5
Connection module: female connector, M12, 17-pin, A-coded
14 ANNEX
110
O P E R A T I N G I N S T R U C T I O N S | RFU62x 8015930/ZTM0/2018-11-06 | SICK
Subject to change without notice
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