B&B Electronics Vlinx ESP902 Manual de servicio descargar pdf (Pagina 12)

Introduction

4 Chapter 1 Manual Documentation Number: ESP901-902_5012m

B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com

B&B Electronics Ltd – Westlink Commercial Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com

Paired Mode

Paired Mode is also called serial tunneling. In this mode any two serial

devices that can communicate with a serial link will be able to

communicate using two Serial Servers and the LAN.

Two Serial Servers are connected to a network, one configured as a

TCP or UDP client and the other as a TCP/UDP server. When setting

up the server the remote IP address section must contain the address of

the client. This will allow the client’s IP address to pass the IP address-

filtering feature of the server. Conversely, the Remote IP address of the

client must contain the server’s IP address. Both communication port

numbers must be the same.

Heart Beat

The Heart Beat protocol connection provides a reliable

communications connection in Virtual COM Port Mode or with Paired

Connection Mode. This feature restores the connection if

communications are temporarily lost at either end due to loss of power

or Ethernet connection.

Without this feature a device that loses a connection and stops

communicating would not be able to reconnect without human

intervention. A TCP data connection can be lost when there is a power

failure or temporary loss of an Ethernet connection on either the client

or server. If a loss occurs the Heart Beat feature will try to reconnect

the TCP data connection every five seconds until communications is

established again. The Heart Beat feature is available for use in Virtual

COM Port Mode and Paired Connection Mode. This is not available

when using a UDP application.

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B&B Electronics Vlinx ESP902 Manual de servicio Pagina 12