Einstellung der RS-422A/RS-485 Abschlüsse
SW 501
Wenn der Controller und RS-422A/RS-485 Buchsen verbunden sind, sollte,
wie in der Übersicht dargestellt, der Abschluss entsprechend der Impedanz
(des Scheinwiderstandes) des jeweiligen Übertragungsweges eingestellt
werden, um Signale bei großen Entfernungen durch Kontrolle der
Reflektionen auf der Leitung auszugleichen.
Aufteilung
<RS-485 Halbduplex-Betriebsart>
Abschluss: Verwenden Sie PIN-Nummer 1 und 2, Schalten auf ON bedeutet
Abschluss.
Aufteilung
<RS-422A/RS-485 Vollduplex-Betriebsart>
1-11
n < 128
Termination
SW1-ON
n < 128
Division
SW1-ON
SW2-ON
Schaltereinstellung
Empfänger-adresse
SW500-1
SW500-2
SW500-3
0
OFF
OFF
OFF
1
ON
OFF
OFF
2
OFF
ON
OFF
3
ON
ON
OFF
4
OFF
OFF
ON
5
ON
OFF
ON
6
OFF
ON
ON
7
ON
ON
ON
8
OFF
OFF
OFF
9
ON
OFF
OFF
10
OFF
ON
OFF
11
ON
ON
OFF
12
OFF
OFF
ON
13
ON
OFF
ON
14
OFF
ON
ON
15
ON
ON
ON
16
OFF
OFF
OFF
17
ON
OFF
OFF
18
OFF
ON
OFF
19
ON
ON
OFF
20
OFF
OFF
ON
21
ON
OFF
ON
22
OFF
ON
ON
23
ON
ON
ON
24
OFF
OFF
OFF
25
ON
OFF
OFF
26
OFF
ON
OFF
27
ON
ON
OFF
28
OFF
OFF
ON
29
ON
OFF
ON
30
OFF
ON
ON
31
ON
ON
ON
32
OFF
OFF
OFF
33
ON
OFF
OFF
34
OFF
ON
OFF
35
ON
ON
OFF
36
OFF
OFF
ON
37
ON
OFF
ON
38
OFF
ON
ON
39
ON
ON
ON
40
OFF
OFF
OFF
41
ON
OFF
OFF
42
OFF
ON
OFF
43
ON
ON
OFF
44
OFF
OFF
ON
45
ON
OFF
ON
46
OFF
ON
ON
47
ON
ON
ON
48
OFF
OFF
OFF
49
ON
OFF
OFF
50
OFF
ON
OFF
51
ON
ON
OFF
52
OFF
OFF
ON
53
ON
OFF
ON
54
OFF
ON
ON
55
ON
ON
ON
SW500-4
SW500-5
SW500-6
SW500-7
SW500-8
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
D
1-12