B&B Electronics ESP904E manual ESP904 Quick Start Guide, Paired Mode, Heart Beat, Hardware Setup

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Introduction

After connection, the LAN is transparent to the program and serial device. Applications are able to work just as if the serial device is connected directly to a physical COM port on the computer. The virtual COM port software converts the application’s data into IP packets, sends it across the network to the ESP904, which converts the IP packet back to serial data and sends the data out a serial port located on the ESP904.

To use this mode, the ESP904 must be set to either TCP/server or UDP/server with a designated communication port number. The virtual COM driver is the TCP or UDP client.

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 ESP904s and the LAN.

Two ESP904s 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.

Manual Documentation Number: ESP904-0504

Chapter 1

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Introduction

ESP904 Quick Start Guide

Hardware Setup

Required hardware:

•A PC operating on an Ethernet LAN.

•A serial device with a RS-232 interface.

•Network and serial cables, as required.

Step 1: Connect the ESP904 to the network using a standard network cable

Step 2: Connect the ESP904 to the RS-232 serial device.

Note:

If the serial device is configured as a DCE use a straight-through serial cable. If the serial device is configured as a DTE use a crossover (null modem) cable.

Figure 2. Quick Start Hardware Setup

Software Installation

Using the CD included with the ESP904, install the VLINX ESP Manager software on the configuring computer.

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Chapter 1

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

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Contents RS-232/422/485 Quad-Port Multi-Interface Ethernet Serial ServerInternational Headquarters Table of Contents Using Console Mode Table of Figures DB-9 Pin-out in RS-485 Mode Wire RS-485 ConnectionIntroduction FeaturesDirect IP Mode Virtual COM ModeESP904 Quick Start Guide Paired ModeHardware Setup Software InstallationWhen the parameters have been set, click on Update ESP904 ConfigurationInstall Virtual COM Ports on PC ESP904 Technical DataCheck Communications Settings Serial Number Configuration Console ModeOptions Telnet Mode Default Server Server NameEthernet Connector Package ChecklistESP904 Connections, Indicators and Reset Switch Indicator LightsSerial Port Operational Modes RS-422 Mode RS-232 ModeRS-485 Mode DB-9M RS-232 ESP904 Serial Port Connector Pin-outsRS-422 RS-485 Manual Installation Installing the Vlinx ESP SoftwareSoftware Installation Automatic InstallationInstall Shield Wizard Complete Window Hardware Setup Using ESP ManagerSoftware Setup Serial Server List Server Icons SectionVirtual COM List Searching ServerServer Properties Screen Vcomui Window Server Properties Configuring the ESP904Description of the Server Properties Baud Rate Connection ModeTimeout Server Serial Port Select 1 toUpdate/Save Virtual COM Port Installation Installing Virtual COM PortsWindows Logo Testing Window Matching the ESP904 and Virtual COM Port SettingsVlinx ESP COM3 Properties Window Removing Virtual COM Ports Removing the Virtual COM Port using Device ManagerRemoving the Virtual COM port with ESP904 Manager Control Panel Window Upgrading Via ESP904 Manager Upgrading the ESP904Firmware Downloading the FirmwareUpgrading in Progress Console Mode Setup Using Console ModeNavigating the Configuration Menu Saving and Restarting the Configuration Using a PasswordSetting Server Properties Using the WEB ServerRS-232 Crossover null modem Cable Connections ESP904 DB-9 Pin-outs in RS-232 ModeAppendix a RS-232 Connections RS-232 Straight-through Cable ConnectionsRS-232 DTE Loopback Connections RS-232 Crossover DB-9 to DB-25 Conversion ConnectionsAppendix B RS-422 Connections ESP904 DB-9 Pin-outs in RS-422 ModeLoopback Connections for RS-422 Pin ESP904 DB-9 Pin-out in RS-485 ModeAppendix C RS-485 Connections RS-485 DirectionCrossover Ethernet Cable RJ-45 Pin-out RJ-45 Pin Signal Wire ColorAppendix D Network Connections Standard Ethernet Cable RJ-45 Pin-out

ESP904E, ESP904 specifications

B&B Electronics has established itself as a leader in developing innovative communication and networking solutions, and the ESP904 and ESP904E models are perfect examples of this commitment to excellence. These devices are designed specifically for Serial to Ethernet/IP communication, making them suitable for a wide range of applications in industrial environments.

One of the main features of the ESP904 is its ability to convert serial data from RS-232, RS-422, or RS-485 interfaces into Ethernet data, facilitating communication with remote servers or other devices over an IP network. This serial-to-Ethernet conversion enables the integration of legacy serial devices into modern network infrastructures, ensuring that businesses can take advantage of new technologies while maximizing their existing investments.

The ESP904E model enhances the base ESP904 by adding even more advanced features, including increased processing power and enhanced security protocols. This robustness is crucial for applications where data integrity and security are paramount, such as in industrial automation, transportation, and telecommunications. The device supports a wide range of encryption methods for secure communications, protecting sensitive data from unauthorized access.

In terms of technologies, both models support full TCP/IP networking capabilities, allowing for seamless communication across various network environments. They are equipped with a built-in web server, enabling easy configuration and monitoring via a standard web browser. This eliminates the need for dedicated software and simplifies the deployment process.

Key characteristics of the ESP904 and ESP904E include robust construction designed for harsh industrial conditions, a compact design that allows for easy installation, and the ability to support multiple simultaneous connections. They also feature flexible power options, enabling connections through PoE (Power over Ethernet) or traditional power supplies, enhancing compatibility with different setups.

In addition, both models support various operating modes, including Server, Client, and Proxy modes, giving users flexibility in how they integrate their devices. The modular design of the ESP904 and ESP904E means that they can be easily updated and expanded as technology evolves.

Overall, the B&B Electronics ESP904 and ESP904E are powerful tools for organizations looking to modernize their communication architectures, providing reliability and performance that meet the demands of today’s networking environments. Whether for a small setup or a complex industrial network, these devices offer the versatility and capabilities needed to ensure success.
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