Wavecom Fastrack M1206 Manual de usuario descargar pdf (Pagina 5)

Installation Manual

INTRODUCTION

Page 4

1.2 Communication using LAN / Internet

When using LAN / Internet communication between the Dupline-Online Server and the Dupline® Data

Logger the Dupline-Online Server must have a fixed IP address on the network. The reason for this is that

the serial to Ethernet (MOXA NPort) converter must know which IP address to contact when data is to be

exchanged.

The transport of data between the Dupline-Online Server and the Dupline® Data Logger is done with a

TCP/IP socket on a single TCP/IP port. Hence only one TCP/IP port has to be open if there is a firewall

between the Dupline-Online Server and the Dupline® Data Logger. By default TCP/IP port 10100 is used but

the TCP/IP port can be changed in the LogIf service on the Dupline-Online Server.

The TCP/IP socket connection is always opened from the Dupline® Data Logger end. Hence it is always the

Dupline® Data Logger (actually it’s the serial to Ethernet converter) which initiates the TCP/IP socket

connection. The TCP/IP socket is kept alive as long as the Dupline® Data Logger is powered one which

enables control request etc. to be sent from the Dupline-Online Server to the Dupline® Data Logger on the

same TCP/IP socket which is used to send log data from the Dupline® Data Logger to the Dupline-Online

Server.

The fact that the TCP/P socket always is opened from the Dupline® Data Logger end and only one TCP/IP

socket is used for communication in both directions makes the installation and network setup very easy and

straight forward.

The data packages exchanged between the Dupline-Online Server and the Dupline® Data Logger over the

TCP/IP socket are kept at an absolute minimum. When no data is logged only a very small data package is

exchanged every 5 minutes to keep the connection alive. The “keep alive package” is at the same time used

to ensure that the clock in the Dupline® Data Logger is as accurate as possible.

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Wavecom Fastrack M1206 Manual de usuario Pagina 5