Siemens SIMATIC TIWAY 1 Manual de usuario descargar pdf (Pagina 35)

Network Design Considerations

2-18

TIWAY 1 TI505 NIM User Manual

2.4.4 Networks

with T

wo or Mor

e Switch-biased Devices

This

configuration exists when multiple switch-biased TIW

Y I Devices

are attached to

the

network, and they should be positioned as described in the following paragraphs.

two or more devices having the Bias Switch

are attached, place one at each end of the

Local

Line, and turn on each Bias Switch.

All

other devices having a Bias Switch can then be placed anywhere on the network, with

the

Bias Switches turned off for the port being used. See Figure 4.

LOCAL

LINE

END OF LOCAL

LINE

END OF LOCAL

LINE

BIAS SWITCH OFF

ALL

OTHER

SECONDARY

DEVICES

SWITCH–BIASED

NIM

SWITCH–BIASED

NIM

BIAS SWITCH ON

Figure 4

Local Line with T

wo or More Switch-biased NIMs

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Siemens SIMATIC TIWAY 1 Manual de usuario Pagina 35