Siemens SIMATIC TIWAY 1 Manual de usuario descargar pdf (Pagina 18)

OPERATION

AND

APPLICATION

UNILINK HOST

ADAPTER 2–8

USER MANUAL

2.3.4 Typical

Network Applications

Both single and multiple host networks are supported by the UNILINK Host

Adapter. Figure 2–7 illustrates a typical single host network which uses an

MHIU

as the host interface and network manager

Host

Com-

puter

UNILINK

TIWAY

UniLink Host Adapter ( MHU)

RS–232–C/RS–4

23–A

Host

Interface

Cable

Figure 2–7 Typical Single Host Network

Multiple

host

networks can be configured with a variety of adapters in different

operating modes as illustrated in Figure 2–8 and Figure 2–9. Since the NM

function

is not in the same adapter with the HIU function in Figure 2–9, the NM

and HIUs can use the total memory resources of the adapters for their

respective needs. This could be an advantage in large networks where the

additional

memory for NM buffers will increase network performance.

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Siemens SIMATIC TIWAY 1 Manual de usuario Pagina 18