B&B Electronics ESP904 Server Serial Port Select 1 to, Baud Rate, Data/Parity/Stop, Flow Control

Server Properties Configuration

Server Serial Port (Select 1 to 4)

The configuration for each port is displayed one at a time. In the ESP Manager, double-click on the port in the Serial Server List. This brings up the Server Properties window for that port. Make any desired changes to the configuration and then click on Update. Only the settings for the port shown are stored.

Note:

Click Update to store settings for each port before changing to the other port.

Using Telnet or Console Mode, Save stores settings for all ports simultaneously.

Baud Rate

The serial port baud rate on the ESP904 must match the serial baud rate of the connected device unless using Virtual COM mode. In Virtual COM mode the software program will establish serial settings.

Data/Parity/Stop

Set this to match the data format used by the device connected when the Virtual COM mode is not being used.

Flow Control

The Flow Control setting must match the requirements of the device connected.

Note:

Select None when setting ESP Port 1 as RS-485 or 4-wire RS-422.

Connection Mode

The Connection Mode field has three options: Server, Client and Client (no

heartbeat)

•When using the Virtual COM Port feature, select Server.

•When using a TCP or UDP Socket program, select Server.

•When using Paired Mode communication between two serial servers set up one as a Client and the other as a Server.

•When connecting to a server that does not support Heartbeat, select

Client (no Heartbeat).

Manual Documentation Number: ESP904-0504 Chapter 5 33

Server Properties Configuration

TCP/UDP Protocol

Select TCP (Transmission Control Protocol) or UDP (User Datagram Protocol) protocol. If the application does not require a UDP connection, select TCP. TCP guarantees reliable communication with error checking whereas UDP provides faster transmission.

TCP/UDP Port

This sets the port number for connection. The default port number is 4000, 4001, 4002, and 4003 for serial ports 1, 2, 3, and 4 respectively.

In all modes of operation, Direct IP or Virtual COM, the port number set in the ESP904 menu must match the Virtual COM or socket software port settings.

Note:

Example: The Virtual COM default setting is TCP/UDP Port 4000. If the port # property is changed to 4001, the virtual COM port will have to be changed to 4001. The hardware settings can be changed from the ESP Manager or Console Configuration Menu. The Virtual COM port setting also can be changed within the Device Manager of the computer on which it is installed.

Remote IP Address

This is a security feature activated by entering the IP address of the desired client. The ESP904 will only communicate with the listed IP address and all other requests for connection will be filtered out. The ESP904 must be set up as a TCP or UDP Server to use this feature. The default setting is 255.255.255.255.

If Paired Mode is not being used, do not change this setting until the application has been tested and is communicating properly. Then activate the address filtering feature.

Note:

Refer to Chapter 1 Paired Mode

Timeout

Default for the Timeout property is 0, or no timeout. Setting Timeout to any value between 1 and 255 seconds activates it. If set to 5 seconds and the ESP904 is configured as a Server. In this scenario the Client makes a connection and communications start. If communications are ideal for 5 seconds the ESP904 will reset and make itself available for another client connection.

34 Chapter 5 Manual Documentation Number: ESP904-0504

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