Siemens SIMATIC TIWAY 1 Manual de usuario descargar pdf (Pagina 16)

OPERATION

AND

APPLICATION

UNILINK HOST

ADAPTER 2–6

USER MANUAL

2.3.2

Network Manager Function

Acting as the network primary, the Network Manager function is responsible

for

controlling the message traffic on the TIW

Y I network as shown in Figure

2–5.

receives the requests from HIUs and stores them in a NM buffer

, routes

them

to the designated secondary devices, and returns the secondary response

to the HIU that issued the request. There can be only one adapter configured

with

the Network Manager function in any particular TIW

Y I network.

This

function will only process Network Manager commands. These

commands

control

the TIW

Y I network operations, return network statistical information

and handle the background monitor and redundant media switching

operations. All network requests and responses are queued in the Network

Manager

buffers area.

Manages the message traffic on

the TIWAY I network.

Uses memory for:

Network Buffers

Network Stations

Figure 2–5 Network Manager Function

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 207 208

Sin comentarios

Siemens SIMATIC TIWAY 1 Manual de usuario Pagina 16