Installing the VLINX ESP Software

RS-232 Mode

In RS-232 Mode the serial port is configured to support eight RS-232 signal lines plus Signal Ground and is configured as DTE like a computer. Signals are single ended and referenced to Ground. To use handshaking, Flow Control must be set to RTS/CTS during Configuration.

Note:

Refer to Appendix A for RS-232 connection pin-outs.

RS-422 Mode

RS-422 Mode supports four RS-422 signal channels with full duplex operation for Receive, Transmit, RTS (Request To Send) and CTS (Clear To Send). The data lines are differential pairs (A & B) in which the B lines positive relative to the A lines. Ground provides a common mode reference. To use handshaking Flow Control must be set to RTS/CTS during configuration.

Note:

Refer to Appendix B RS-422 connection pin-outs.

RS-485 Mode

RS-485 Mode supports the transmit (TX) and receive (RX) signal channels using 2-wire, half-duplex operation. The data lines are differential with the Data B line positive relative to Data A in the Mark state. Ground provides a common mode reference.

Note:

Refer to Appendix C for RS-485 connection pin-outs.

RS-485 Receiver Biasing can be implemented from the ESP904 if the network does not supply it. Remove the two side-cover screws of the ESP904, slide the cover off and re-position the bias jumpers (shown open in the figure below) to enable biasing (shorting).

Installing the VLINX ESP Software

Figure 10. Internal Setting to Select RS-485 Bias

Note:

(For more information on RS-485 Receiver Biasing, see B&B Electronics RS- 422/485 Application Note available at www.bb-elec.com)

Manual Documentation Number: ESP904-0504

Chapter 2

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Chapter 2

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 815-433-5104www.bb-elec.com

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

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

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

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B&B Electronics ESP904E manual RS-232 Mode, RS-422 Mode, RS-485 Mode

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.