Prosoft-technology PLX8X-MNET-61850 Instrukcja Użytkownika Pobierz pdf (Strona 166)

Reference PLX8x-MNET-61850 ♦ Communication Gateway

User Manual Modbus TCP/IP to IEC 61850

Page 166 of 228 ProSoft Technology, Inc.

May 14, 2014

6.4.7 Modbus TCP/IP Server

Modbus TCP/IP Server Startup Sequence:

a Connect to Event Logger

b Connect to tag database – Error message in event log on fail

c Parse configuration file – Error message if cannot create configuration

object

d Connect to system tag database

e Initialize diagnostics

f Connect to MCP – Error message in event log on fail

g Create server pool

h Server pool creates a server thread for each configured server

i Inform MCP that driver is ready to run

j Wait for run signal from MCP

k Run server communications: wait for Client to connect

l If receives quit signal from MCP clean up threads and exit process

Each Client will try to connect in a loop until the connection is made. If the

attempt to connect fails, it will wait 100ms and try again. If a connection is lost it

start trying to connect the same as during startup.

The server will disconnect on connection loss or when there is no communication

for a timeout period. It will then begin listening for a connection request from a

Client.

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