Ajuste de la terminación RS-422/RS-485
SW 501
Como se muestra en el mapa de estructuras, la conexión entre el
Controlador y el RS-422A/RS-485 se debe terminar según la característica
de impedancia del cable en cada extremo de la línea transmisora con el fin
de transferir las señales de larga distancia manteniendo la reflexión de las
señales en mínimo.
División
<Conexión RS-422A/RS-485 en HALF DUPLEX>
Para ello se deben usar los interruptores 1 y 2, en ON significa final de la línea.
División
<Conexión RS-422A/RS485 en FULL DUPLEX>
1-11
Dirección de receptor
n < 128
Terminación
SW1-ON
n < 128
División
SW1-ON
SW2-ON
Configuración Conmutadores
SW500-1
SW500-2
SW500-3
SW500-4
SW500-5
0
OFF
OFF
OFF
OFF
1
ON
OFF
OFF
OFF
2
OFF
ON
OFF
OFF
3
ON
ON
OFF
OFF
4
OFF
OFF
ON
OFF
5
ON
OFF
ON
OFF
6
OFF
ON
ON
OFF
7
ON
ON
ON
OFF
8
OFF
OFF
OFF
ON
9
ON
OFF
OFF
ON
10
OFF
ON
OFF
ON
11
ON
ON
OFF
ON
12
OFF
OFF
ON
ON
13
ON
OFF
ON
ON
14
OFF
ON
ON
ON
15
ON
ON
ON
ON
16
OFF
OFF
OFF
OFF
17
ON
OFF
OFF
OFF
18
OFF
ON
OFF
OFF
19
ON
ON
OFF
OFF
20
OFF
OFF
ON
OFF
21
ON
OFF
ON
OFF
22
OFF
ON
ON
OFF
23
ON
ON
ON
OFF
24
OFF
OFF
OFF
ON
25
ON
OFF
OFF
ON
26
OFF
ON
OFF
ON
27
ON
ON
OFF
ON
28
OFF
OFF
ON
ON
29
ON
OFF
ON
ON
30
OFF
ON
ON
ON
31
ON
ON
ON
ON
32
OFF
OFF
OFF
OFF
33
ON
OFF
OFF
OFF
34
OFF
ON
OFF
OFF
35
ON
ON
OFF
OFF
36
OFF
OFF
ON
OFF
37
ON
OFF
ON
OFF
38
OFF
ON
ON
OFF
39
ON
ON
ON
OFF
40
OFF
OFF
OFF
ON
41
ON
OFF
OFF
ON
42
OFF
ON
OFF
ON
43
ON
ON
OFF
ON
44
OFF
OFF
ON
ON
45
ON
OFF
ON
ON
46
OFF
ON
ON
ON
47
ON
ON
ON
ON
48
OFF
OFF
OFF
OFF
49
ON
OFF
OFF
OFF
50
OFF
ON
OFF
OFF
51
ON
ON
OFF
OFF
52
OFF
OFF
ON
OFF
53
ON
OFF
ON
OFF
54
OFF
ON
ON
OFF
55
ON
ON
ON
OFF
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
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
ON
OFF
OFF
OFF
Es
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
1-12