B&B Electronics ESP904E, ESP904 User Manual

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Manual Documentation Number: ESP904-0504

International Headquarters

B&B Electronics Mfg. Co. Inc.

707 Dayton Road

P.O. Box 1040

Ottawa, IL 61350 USA

Phone [phone] -- General Fax [phone]

Website: www.bb-elec.com

Sales e-mail: [e-mail]

Technical Support e-mail: [e-mail]

European Headquarters

B&B Electronics Ltd.

Westlink Commercial Park

Oranmore, Co. Galway, Ireland

Phone [phone] -- Fax [phone]

Website: www.bb-europe.com

Sales e-mail: [e-mail]

Technical Support e-mail: [e-mail]

© B&B Electronics – February 2004

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

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Manual Documentation Number: ESP904-0504

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TABLE OF FIGURES.................................................................................................I

CHAPTER 1: INTRODUCTION.............................................................................. 1

FEATURES .................................................................................................................. 1

COMMUNICATION MODES ......................................................................................... 2

Direct IP Mode ..................................................................................................... 2

Virtual COM Mode ............................................................................................... 2

Paired Mode ......................................................................................................... 3

Heart Beat............................................................................................................. 3

ESP904 QUICK START GUIDE.................................................................................... 4

Hardware Setup .................................................................................................... 4

Software Installation............................................................................................. 4

ESP904 Configuration.......................................................................................... 5

Install Virtual COM Ports on PC.......................................................................... 7

Check Communications ........................................................................................ 7

ESP904 TECHNICAL DATA ........................................................................................ 8

CHAPTER 2: MAKING THE HARDWARE CONNECTIONS ......................... 11

PACKAGE CHECKLIST .............................................................................................. 11

ESP904 CONNECTIONS, INDICATORS AND RESET SWITCH ...................................... 12

Indicator Lights................................................................................................... 12

Ethernet Connector............................................................................................. 12

Power Connector................................................................................................ 13

Reset Button ........................................................................................................ 13

Serial Ports ......................................................................................................... 13

SERIAL PORT OPERATIONAL MODES ....................................................................... 14

Default Mode ...................................................................................................... 14

Console Mode ..................................................................................................... 14

Upgrade Mode .................................................................................................... 14

RS-232 Mode....................................................................................................... 15

RS-422 Mode....................................................................................................... 15

RS-485 Mode....................................................................................................... 15

ESP904 SERIAL PORT CONNECTOR PIN-OUTS ......................................................... 17

CHAPTER 3: INSTALLING THE VLINX ESP SOFTWARE ........................... 19

SOFTWARE INSTALLATION....................................................................................... 19

CHAPTER 4: USING ESP MANAGER................................................................. 23

CHAPTER 5: CONFIGURING THE ESP904 SERVER PROPERTIES ........... 31

CHAPTER 6: INSTALLING VIRTUAL COM PORTS ...................................... 37

CHAPTER 7: REMOVING VIRTUAL COM PORTS......................................... 43

CHAPTER 8: UPGRADING THE ESP904 FIRMWARE.................................... 47

Automatic Installation......................................................................................... 19

Manual Installation............................................................................................. 19

HARDWARE SETUP: ................................................................................................. 23

SOFTWARE SETUP:................................................................................................... 24

Server Icons Section............................................................................................ 26

Serial Server List................................................................................................. 26

Virtual COM List ................................................................................................ 27

SEARCHING SERVER ................................................................................................ 28

Server Properties Screen .................................................................................... 28

DESCRIPTION OF THE SERVER PROPERTIES .............................................................. 31

Server Name........................................................................................................ 31

Password............................................................................................................. 31

DHCP ................................................................................................................. 31

IP Address........................................................................................................... 32

Netmask............................................................................................................... 32

Gateway .............................................................................................................. 32

MAC Address ...................................................................................................... 32

Link Status........................................................................................................... 32

Server Serial Port (Select 1 to 4) ........................................................................ 33

Baud Rate............................................................................................................ 33

Data/Parity/Stop ................................................................................................. 33

Flow Control....................................................................................................... 33

Connection Mode................................................................................................ 33

TCP/UDP Protocol............................................................................................. 34

TCP/UDP Port.................................................................................................... 34

Remote IP Address.............................................................................................. 34

Timeout ............................................................................................................... 34

Update/Save........................................................................................................ 35

VIRTUAL COM PORT INSTALLATION ...................................................................... 37

MATCHING THE ESP904 AND VIRTUAL COM PORT SETTINGS................................ 40

REMOVING THE VIRTUAL COM PORT WITH ESP904 MANAGER ............................. 43

REMOVING THE VIRTUAL COM PORT USING DEVICE MANAGER ............................ 44

DOWNLOADING THE FIRMWARE .............................................................................. 47

Manual Documentation Number: ESP904-0504 Table of Contents i

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ii Table of Contents Manual Documentation Number: ESP904-0504

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U

PGRADING VIA ESP904 MANAGER....................................................................... 47

Preparing the Software....................................................................................... 47

Upgrading the Firmware .................................................................................... 48

CHAPTER 9: USING CONSOLE MODE ............................................................. 51

CONSOLE MODE SETUP ........................................................................................... 51

Navigating the Configuration Menu ................................................................... 52

Using a Password ............................................................................................... 54

CHAPTER 10: USING THE WEB SERVER ........................................................ 55

SETTING SERVER PROPERTIES ................................................................................. 55

APPENDIX A: RS-232 CONNECTIONS............................................................... 57

ESP904 DB-9 PIN-OUTS IN RS-232 MODE .............................................................. 57

RS-232 Straight-through Cable Connections...................................................... 58

RS-232 Crossover (null modem) Cable Connections.......................................... 58

RS-232 Straight-through DB-9 to DB-25 Conversion Connections.................... 59

RS-232 Crossover DB-9 to DB-25 Conversion Connections.............................. 59

RS-232 DTE Loopback Connections................................................................... 60

APPENDIX B: RS-422 CONNECTIONS............................................................... 61

ESP904 DB-9 PIN-OUTS IN RS-422 MODE .............................................................. 61

APPENDIX C: RS-485 CONNECTIONS............................................................... 65

ESP904 DB-9 PIN-OUT IN RS-485 MODE................................................................ 65

APPENDIX D: NETWORK CONNECTIONS...................................................... 67

STANDARD ETHERNET CABLE RJ-45 PIN-OUT......................................................... 67

CROSSOVER ETHERNET CABLE RJ-45 PIN-OUT ....................................................... 68

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iv Table of Contents Manual Documentation Number: ESP904-0504

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Figure 39. The Web Server Page................................................................................ 55

Figure 40. The Web Server Serial Port Properties Page............................................ 56

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Figure 41. RS-232 Connections in a DB-9 Connector................................................ 57

Figure 42. Straight-through (DTE to DCE) DB-9 to DB-9 Serial Cable with RS-232

Signal Designations............................................................................................. 58

Figure 43. Crossover (DTE to DTE) DB-9 to DB-9 Serial Cable with RS-232 Signal

Figure 1. The VLINX ESP904 Quad-Port Ethernet Serial Server................................ 1

Figure 2. Quick Start Hardware Setup ......................................................................... 4

Figure 3. The ESP Manager Window........................................................................... 5

Figure 4. The Server Properties Window ..................................................................... 6

Figure 5. Configuring the Virtual COM Port............................................................... 7

Figure 6. Dimensional Diagram of the ESP904 ......................................................... 10

Figure 7. Side View of the ESP904 – when vertically mounted.................................. 11

Figure 8. Top View of the ESP904.............................................................................. 13

Figure 9. The ESP904 Serial Port Connectors........................................................... 13

Figure 10. Internal Setting to Select RS-485 Bias ...................................................... 16

Table 11. Serial Connection Pin-outs for RS-232/RS-422/RS-485............................. 17

Figure 12. The Run Dialogue Box .............................................................................. 19

Designations........................................................................................................ 58

Figure 44. Connections for a DB-9 to DB-25 Straight-through Cable....................... 59

Figure 45. Connections for a DB-9 to DB-25 Crossover (null modem) Cable........... 59

Figure 46. Loopback Connections for RS-232............................................................ 60

Figure 47. RS-422 Connections in a DB-9 Connector................................................ 61

Figure 48. RS-422 Connections with Flow Control.................................................... 62

Figure 49. Loopback Connections for RS-422............................................................ 63

Figure 50. RS-422 Connection with No Flow Control................................................ 63

Figure 51. DB-9 Pin-out in RS-485 Mode .................................................................. 65

Figure 52. 2-wire RS-485 Connection........................................................................ 65

Figure 53. Pin-out for a Standard Ethernet Cable ..................................................... 67

Figure 54. Pin-out for a Crossover Ethernet Cable.................................................... 68

Figure 13. The Install Shield Wizard Window............................................................ 20

Figure 14. VLINX ESP Setup Window........................................................................ 20

Figure 15. The Choose Destination Window .............................................................. 20

Figure 16. The Install Shield Wizard Complete Window............................................ 21

Figure 17. Ethernet Connection via a LAN ................................................................ 23

Figure 18. Direct Ethernet Connection using a Crossover Cable.............................. 24

Figure 19. The VLINX ESP Manager Window ........................................................... 25

Figure 20. The Search Setup Window......................................................................... 28

Figure 21. The Server Properties Window ................................................................. 29

Figure 22. The vcomui Window.................................................................................. 30

Figure 23. The Search Setup Window......................................................................... 37

Figure 24. The Found Server Window........................................................................ 38

Figure 25. The COMInst Window............................................................................... 38

Figure 26. The Windows Logo Testing Window ......................................................... 39

Figure 27. The Device Manager Window................................................................... 40

Figure 28. The VLINX ESP (COM3) Properties Window........................................... 41

Figure 29. The ESP Manager Window ....................................................................... 43

Figure 30. The vcomui Dialogue Box......................................................................... 44

Figure 31. The Control Panel Window....................................................................... 45

Figure 32. The Device Manager Window................................................................... 45

Figure 33. Confirm Device Removal .......................................................................... 46

Figure 34. The Port Settings Window......................................................................... 48

Figure 35. Upgrading in Progress.............................................................................. 49

Figure 36. The Console Mode Server Configuration Screen...................................... 52

Figure 37. Saving and Restarting the Configuration.................................................. 53

Figure 38. Assigning a Password ............................................................................... 54

Manual Documentation Number: ESP904-0504 Table of Figures I

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II Table of Figures Manual Documentation Number: ESP904-0504

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Introduction

Introduction

ESP904 can be attached to a network or to the Ethernet port of a
computer (using a crossover cable). Non-Windows users can configure it

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in the Console Mode using an RS-232 port, VT100 Terminal Emulation
program and an RS-232 crossover cable. Telnet also can be used to
access the setup configuration menu.

The VLINX Model ESP904 Quad-Port Ethernet Serial Server provides
Ethernet to Serial connections for RS-232, RS-422 or RS-485 devices. The
serial ports can be accessed over a LAN/WAN using

COM Port

, or Paired Mode connections. The 10/100 Mbps Ethernet

Direct IP Mode, Virtual

connection auto-selects 10BaseT or 100BaseTX and indicates the type of
connection with a bi-color link light.

• Virtual COM Driver Software for Windows - installs a virtual COM

port, viewable in the Windows Device Manager under

. Virtual COM port provides access to any of the ports on the

LPT)

ESP904, like any other serial port (legacy, PCI, USB or PCMCIA) on
the computer. Any program running on the computer and using
Windows-based COM ports can access the serial devices attached to the
ESP904. The LAN becomes transparent to the serial device and the
software running on the PC.

• Heart Beat Connection - selectable protocol ensures reliable

communications in Virtual COM Port or Paired Connection modes. This
feature restores the connections if communications are temporarily lost
at either end due to loss of power or the Ethernet connection.

Communication Modes

The ESP904 enables communication with serial devices over a LAN or
WAN. Serial devices no longer are limited to a physical connection to the PC
COM port. They can be installed anywhere on the LAN using TCP/IP or
UDP/IP communications. This allows traditional Windows PC software
access to serial devices anywhere on the LAN/WAN network.

Direct IP connections allow applications using TCP/IP or UDP/IP socket

programs to communicate with the asynchronous serial ports on the ESP904.
In this type of application the ESP904 is configured as a TCP or UDP server.
The socket program running on the PC establishes a communication
connection with the ESP904. The data is sent directly to and from the serial
port on the server.

Use Install Virtual COM to add a driver, to provide a virtual COM port on
the computer. The new COM port shows up in the Device Manager.
Windows programs using standard Windows API calls are able to interface
to virtual COM ports. When a program on the PC opens the new COM port,
it communicates with the remote serial device connected to one of the ports
on the ESP904.

Figure 1. The VLINX ESP904 Quad-Port Ethernet Serial Server

Features

• 4 multi-interface serial ports - RS-232, RS-422, RS-485; software

selectable connections

• 10/100 Mbps Ethernet with Auto Selection

• LAN and WAN Communications

• Web Server

• TCP or UDP Client or Server operation - configurable

• Software Support - Windows 98/ME/2000/XP or NT 4.0

• Firmware Upload for Future Revisions/Upgrades

• VLINX ESP Manager Software for Windows - allows easy

configuration of Ethernet and serial port settings. For configuration, the

Direct IP Mode

Virtual COM Mode

Ports (COM &

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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.

Introduction

ESP904 Quick Start Guide

Hardware Setup

Required hardware:
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.

• 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.

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
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

Connection

Virtual COM Port Mode or with Paired Connection Mode.

Virtual COM Port Mode and Paired

mode. This is not available when using a UDP application.

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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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Introduction

ESP904 Configuration

Step 1: From the Windows Start menu, run the ESP Manager, then double

click on the

Searching Server icon.

Introduction

Step 4: Double click on the first ESP904 port on the list (4000) to bring up

the

Server Properties configuration screen.

Step 2: In the

reachable servers

Search Setup box that appears, click on Search all

, and OK, to find the ESP904 on the network.

Step 3: A list of servers will appear in the

Figure 3. The ESP Manager Window

Serial Server List window.

Figure 4. The Server Properties Window

Step 5: Change the Server Properties as required.

• Enable

DHCP to allow the ESP904 to generate its own IP

address

OR

• Obtain appropriate static

IP, Netmask and Gateway addresses

from your Network Administrator (recommended)

• Set the

Console Mode property to RS-232 to match the serial

device connected to the ESP904 serial port 1.

• Set

Baud Rate, Data/Parity/Stop, and Flow Control to match

the configuration of the serial device connected to the ESP904
serial port

Step 6: When the parameters have been set, click on

Update.

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Step 7: Click on

Searching Servers, then re-enter Server Properties to

confirm the changes.

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Introduction

Install Virtual COM Ports on PC

Step 1: From the Windows Start menu, run the Install Virtual COM Ports

utility included with the VLINX software,

Step 2: Search for all servers on the network

Step 3: Select the first port (4000) and map it to an unused COM port (e.g.

Port 15). Configure it for TCP protocol and the appropriate IP

Introduction

ESP904 Technical Data

Hardware and
Included
Accessories

ESP904 Serial Server module

Power Supply: 12 VDC/1A (tip positive/sleeve negative)

Power Plug: (Area Dependent: North America 120VAC/60Hz,

Manual: Paper copy of this manual, PDF available

CD-ROM disc: VLINX ESP Manager and Virtual COM Driver

address (determined in the last section).

ESP904: 4.5 x 7.3 x 1.1 in (11.4 x 18.5 x 2.9 cm)

Power
Requirements: 12 VDC @ 500 mA

Operating
Temperature: 0 to 50 °C (32 to 122 °F)

Storage
Temperature: −20 to 60 °C (−4 to 140 °F)

Humidity: 0 – 90% non-condensing

Approvals: CE, FCC

Power: Red LED

Link: Yellow or green LED (10BaseT or 100 BaseTX)

Ready: Flashing green LED

Serial Ports (4): Flashing green LED when data present (see Ch. 2)

Ethernet: Single RJ-45 female

Serial: Four - 9 pin D-type male (DB-9M) DTE (all ports

DC Power: Ultra-miniature phone jack (2.5mm), Tip (+),

RS-232(DTE): TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND

RS-422: TXDB(+), TXDA(−), RXDB(+), RXDA(−),

RS-485: Data B (+), Data A (–) and GND

Baud Rate: 110 bps to 230.4 k bps

Parity: None, even, odd

Data Bits: 7 or 8

Stop Bits: 1 or 2

232NM9 Null Modem Crossover Cable for DTE to DTE connection

DRAD35 DIN Rail mounting clips for 35mm DIN Rail

ERS35 one-meter length of steel 35mm DIN Rail

Serial Memory: 8K bytes per port

Figure 5. Configuring the Virtual COM Port

Check Communications

Step 1: From the Windows Start menu, run HyperTerminal

Step 2: Configure

configured in the last section (e.g. Port 15).

Step 3: Set

Step 4: Communications with the serial device should now be operational.

Baud Rate, Data/Parity/Stop, and Flow Control to match the

configuration of the serial device connected to the ESP904 serial
port.

HyperTerminal to connect using the COM port

Dimensions

Power &
Environment

Indicators

Connectors

Serial Interfaces

Optional
Accessories

Memory

Europe/United Kingdom 220/240VAC/50Hz)

software for Windows 98/ME/2000/XP/NT 4.0

are software selectable as RS-232, 422, or 485)

Sleeve (−)

RTS(+), RTS(−), CTS(+), CTS(−) and GND

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Introduction

Introduction

Network
Communications

Protocols

Configuration
Options

LAN: 10/100 Mbps Auto-detecting 10 BaseT or 100

BaseTX

TCP, IP, ARP, DHCP, Telnet, HTTP, UDP, ICMP

Console Mode: Using RS-232 with VT100 emulation

Telnet Mode: Using VT100 emulation

(software for Console Mode or Telnet not

included, can use HyperTerminal in Windows)

VLINX ESP Manager:

Using Windows 98/ME/2000/XP and NT software
includes:

- Search for VLINX ESP901 / ESP902 /

- Configure Server Properties

- Add/Remove Virtual COM port in

- Firmware download for future

Default Server
Settings

Server Name ESP904

Serial Number: XXXXXXXXXX

Password: Blank

DHCP: Disable

IP Address: 192.168.0.1

Net Mask: 255.255.255.0

Gateway: 192.168.0.254

MAC Address: Fixed – see bottom label

Port 1 Console Mode

Ports 2, 3, 4 RS-232

Baud Rate: 9600

Data/Parity/Stop: 8-N-1

Flow Control: None

TCP/UDP Ports: TCP Port 1 – 4000

TCP Port 2 – 4001
TCP Port 3 – 4002

TCP Port 4 – 4003

Connection Mode: Server

Remote IP Address: 255.255.255.255

ESP904 servers on network

Windows

revisions

3.7 mm hole3.7 mm hole

10 mm

25.4 mm

4.7 mm

25.4 mm = 1 inch

11 mm

8 mm

3 mm scre w flathead

6.3 mm

6.9 mm
center
hole

RJ-45
female

Ethernet
10/100M

5.73 mm countersink

12.7 mm

ESP904 4-Port Ser ial Server

Software Selectabl e RS-232/422/485

www.b b- ele c.c om

Port 4Port 3 Port 2Port 1

DB- 9M
male

185.0 mm

DB- 9M
male

4-40 hex threads

161.5 mm

DB- 9M
mal e

Reset

Reset DC - In

Ready

Link

Power

DB- 9M
mal e

2.5 mm Tip (+)

11.3 mm

1.1 mm

33.0 mm

43.0 mm

113.7 mm

33.0 mm

29.0 mm

Figure 6. Dimensional Diagram of the ESP904

Manual Documentation Number: ESP904-0504 Chapter 1 9

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10 Chapter 1 Manual Documentation Number: ESP904-0504

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B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Installing the VLINX ESP Software

Installing the VLINX ESP Software

CChhaapptteerr 22:: MMAAKKIINNGG TTHHEE HHAARRDDWWAARREE

CCOONNNNEECCTTIIOONNSS

Package Checklist

The ESP904 4-port serial server is shipped with the following items
included:

9 ESP904 Serial Server Module
9 Power supply
9 This manual
9 CD-ROM disc with manual, VLINX ESP Manager and Virtual COM

Driver software for Windows 98/ME/2000/XP/NT 4.0

ESP904 Connections, Indicators and Reset Switch

The ESP904 has:

• Seven indicator LEDs

• One Ethernet connector

• A power connector

• A recessed reset switch

• Four serial port connectors

Indicator Lights

Light Indication

Power

Link

Ready

Serial (4) When set up as a TCP server:

Red - power is applied

Yellow – 10BaseT Ethernet connection established

Green – 100BaseTX Ethernet connection established

Flashing Green – system is ready

Steady Green - client has made a connection,

communications starting

Flashing Green – data present at serial port

Light off – connection closed

When setup in UDP mode:

Steady Green (all ports)

Flashing Green – data is being transmitted

Figure 7. Side View of the ESP904 – when vertically mounted

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Ethernet Connector

The ESP904 has a standard RJ-45 receptacle mounted in the top edge of the

chassis. The ESP904 can be connected to an Ethernet hub, switch, or wall

plate using a standard straight-through RJ-45 (male) Ethernet cable. To

connect directly to an RJ45 Ethernet port on a PC or laptop a crossover

Ethernet cable must be used.

NNoottee::

Refer to Appendix D for details on Network Cables

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Installing the VLINX ESP Software

e

Installing the VLINX ESP Software

Serial Port Operational Modes

Power Connector

Plug the ultra-miniature phone plug from the included power supply into the
power jack and then plug the supply in. When power is applied the Red
power light will illuminate. The tip of the power plug is positive; the sleeve
is negative.

Reset Button

This switch resets the unit, similar to the effect of removing/applying power.
The Reset switch is recessed to avoid accidental operation. To reset the unit,
insert a small plastic tool, press lightly and hold for 3 seconds. The Link and
Ready lights will go out and then come back on.

Serial Ports

The ESP904 has four serial ports, each configurable through software as RS­232, RS-422 or RS-485 interfaces. The connectors are DTE DB-9M.

Figure 9. The ESP904 Serial Port Connectors

Power Connection

Reset

Figure 8. Top View of the ESP904

RJ-45 Receptacl

Serial Port

4 3 2 1

Using the ESP Manager or the Console Mode Configuration Menu each

serial port can independently be configured as

or

RS-485 Mode. Port 1 of the ESP904 also can be placed in Console Mode,

Upgrade Mode or Default Mode. Port 1 default setting is Console Mode.

RS-232 Mode, RS422 Mode

Default Mode

When Default Mode is selected and the Server Properties are Updated

(

Saved) all the configuration settings return to their default values. The

default settings for the ESP904 serial ports are:

Console Mode for Port 1;

RS-232 mode for Ports 2, 3 and 4.

NNoottee::

Refer to Chapter 5 for details on Server Configuration settings

Console Mode

In Console Mode the ESP904 Configuration Menu can be accessed from a

computer by connecting its RS-232 serial port to the ESP904’s Port 1. Since

the computer is a DTE device, and the ESP904 serial ports are configured as

DTEs (with DB-9M connectors), a null modem crossover cable must be

used.

Console Mode the default serial port settings are: 9600 baud, 8 data bits,

In

No parity, and 1 stop bit. From Windows, HyperTerminal with VT100

terminal emulation can be used for

NNoottee::

Refer to Chapter 9 for details on Console Mode

Console Mode configuration.

Upgrade Mode

Using a similar connection setup to that used in Console Mode, firmware for

the ESP904 can be updated by connecting the ESP904 to a computer via Port

1, using RS-232. (Upgrading also can be done by communicating with the

ESP904 over the network connection, using the ESP Manager software and a

virtual COM port mapped to the ESP904 Port 1.)

NNoottee::

Refer to Chapter 8 for details on Upgrade Mode

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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.

NNoottee::

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.

NNoottee::

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.

Installing the VLINX ESP Software

Figure 10. Internal Setting to Select RS-485 Bias

NNoottee::

(For more information on RS-485 Receiver Biasing, see B&B Electronics RS­422/485 Application Note available at www.bb-elec.com)

NNoottee::

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).

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Installing the VLINX ESP Software

ESP904 Serial Port Connector Pin-outs

Pin-outs for RS-232, RS-422 and RS-485 operation are shown below.

Installing the VLINX ESP Software

DB-9M

Pin

RS-232

Signal Name

DTE RS-422 RS-485

1 Carrier Detect DCD In RXDA (− ) --

2 Receive Data RXD In RXDB (+) --

3 Transmit Data TXD Out TXDB (+) Data B (+)

4 Data Terminal Ready DTR Out TXDA (−) Data A (−)

5 Signal Ground GND --- GND GND

6 Data Set Ready DSR In CTSA (−) --

7 Request To Send RTS Out CTSB (+) --

8 Clear To Send CTS In RTSB (+) --

9 Ring Indicator RI In RTSA (−)

Table 11. Serial Connection Pin-outs for RS-232/RS-422/RS-485

NNoottee::

For more information on RS-232, RS-422 and RS-485 pin-outs, cable
connections and loopback connections refer to Appendices A, B and C

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Installing the VLINX ESP Software

Installing the VLINX ESP Software

CChhaapptteerr 33:: IINNSSTTAALLLLIINNGG TTHHEE VVLLIINNXX EESSPP

SSOOFFTTWWAARREE

The Windows-based ESP Manager and Virtual COM Port software makes
configuration fast and easy. If using Windows, installing the ESP Manager
software and setting up virtual COM ports to configure the ESP904 is
recommended.

Software Installation

The VLINX ESP software includes:

• ESP Manager

• Install Virtual COM Ports

• Uninstall Virtual COM Ports

Automatic Installation

Step 1a: Inserting the VLINX CD in the CD-ROM should automatically

launch the Install Shield Wizard.

Manual Installation

Step 1b: To manually start the software installation, select the Start button

on the desktop. At the Run command line type

OK. The D: is the drive letter for the CD Rom.

select

D:start.exe. Then

Step 2: When the VLINX ESP Setup window appears, click Next.

Figure 13. The Install Shield Wizard Window

Figure 14. VLINX ESP Setup Window

Figure 12. The Run Dialogue Box

The Install Shield Wizard window will be displayed.

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Figure 15. The Choose Destination Window

Step 3: When Choose Destination Location appears, Click Next.

The installation progress will be shown until complete.

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Installing the VLINX ESP Software

Figure 16. The Install Shield Wizard Complete Window

Step 4: Select Finish when the Install Shield Wizard Complete window

appears.

After Finish, the Install window closes.

Step 5: Start the ESP Manager software:

Start → Programs → B&B Electronics → VLINX → ESP Servers
→ VLINX ESP Manager

.

Installing the VLINX ESP Software

Step 6: If the ESP904 is not already connected to the network or to the

Ethernet port on the computer, connect it, and then apply power.

The Power indicator should light Red, the Link light should indicate
which type of Ethernet connection has been made and the Ready
LED will flash indicating configuration can begin.

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Using ESP Manager

Using ESP Manager

CChhaapptteerr 44:: UUSSIINNGG EESSPP MMAANNAAGGEERR

The ESP Manager software allows:

• Searching for servers connected to the network

• Displaying and changing the configuration of those servers

• Installing virtual COM ports on a computer

• Displaying and configuring virtual COM ports

• Uninstalling virtual COM ports on a computer

• Upgrading the ESP904 firmware

Hardware Setup:

Step 1: Connect the ESP904 to the LAN or to a computer Ethernet port.

Figure 18. Direct Ethernet Connection using a Crossover Cable

NNoottee::

Use an Ethernet Crossover Cable if connecting directly to a computer LAN
card.

Step 2: Apply power. The Red Power indicator will light, the Link indicator

lights when an Ethernet connection is made, and the Ready indicator
will flash.

Software Setup:

Step 3: To run the ESP Manager from the Programs menu click on:

Start → Programs → B&B Electronics → VLINX → ESP Servers
→ VLINX ESP Manager

Figure 17. Ethernet Connection via a LAN

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24 Chapter 4 Manual Documentation Number: ESP904-0504

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Using ESP Manager

The following window should appear:

Figure 19. The VLINX ESP Manager Window

The VLINX ESP Manager window is divided into two sections:

The left (

Server Icons) section displays icons used to run:

• Firmware Upgrade

• Virtual COM Configuration

• Searching Server

• Uninstall Virtual COM

The right section (
tabs at the bottom of the window). These windows are the
and the

Virtual COM List.

The

Serial Server List contains the following information:

Configuration Lists) contains two windows (selectable by

Serial Server List

Using ESP Manager

The

Virtual COM List contains the following information:

• COM Name

• IP Address

• Protocol

• Port

• Flow Control

• Status

Server Icons Section

Firmware Upgrade

Used when downloading new firmware to the ESP Server.

NNoottee::

See Chapter 8 for more information on upgrading firmware.

Virtual COM Configuration

Selects the Virtual COM List. Double clicking on any COM port in the

Virtual COM List brings up a window that allows changing the virtual COM

settings such as

Flow Control, Protocol, IP address, and Port Number.

Virtual COM settings must match ESP904 port settings.

Searching Server

Searches for ESP Servers on the network and brings back configuration

information that will be displayed in the

Uninstall Virtual COM

Server Properties window.

Allows virtual COM ports to be uninstalled from the ESP Manager window.

• Server Name

• IP Address

• Protocol

• Port

• COM Name

• Status

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Serial Server List

Server Name

Displays the name of the ESP904 Server. The name is listed four times, once

for each port.

IP Address

Displays the IP Address for the ESP904 server. All four ports have the same

the same IP address.

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Using ESP Manager

Protocol

Displays the currently selected TCP or UDP mode for the ESP904 server.

COM Name

Displays the number of the COM port mapped to each ESP904 port.

Using ESP Manager

Searching Server

Step 4: To find the ESP904 on the network, click on Searching Servers

(under the
The

Search Setup box will appear.

Servers menu or the icon on the left side of the screen).

Status

The Status indicates the Mapped (Virtual) COM port condition.

Not Connected is shown when a program does not have the port Open.

•

Connected is shown when that Mapped port is Open for use.

•

Virtual COM List

COM Name

Displays the number of the COM port mapped to each ESP904 port.

IP Address

Displays the IP Address for the ESP904 server. All four ports have the same
IP address.

Protocol

Displays the currently selected TCP or UDP mode for the ESP904 server.

Port

Displays the port number for each ESP904 port.

Flow Control

Indicates what type of flow control is configured for each port.

Status

Indicates whether each port is currently In Use or Not used.

The

Search Setup dialogue provides two options for searching for

servers on the network:

Step 5: Enter the

reachable servers,

IP Address assigned to the ESP904 or click on Search all

then OK. IP Address is used to find ESP904
units that are not on the same subnet. (Routers on the network will
block the standard broadcast used to find servers if

reachable servers

is selected.) The user must set an IP address that

Search all

conforms to the LAN addressing scheme.

Figure 20. The Search Setup Window

The Searching window is shown until all active ESP901/ESP902/ESP904 serial
servers on the LAN are listed in the

Serial Server List window.

Server Properties Screen

The Server Properties window displays the current configuration properties for the

currently selected server.

Step 6: To open the

the

Server Properties window, highlight the serial server in

Serial Server List window, double-click to open.

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28 Chapter 4 Manual Documentation Number: ESP904-0504

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Using ESP Manager

The

Server Properties window is used to configure and store the Server

configuration settings. Details for setting Properties are shown in the next
chapter.

Using ESP Manager

Step 7: After configuring as needed, click

in the server. The following window will appear:

Step 8: Click Yes to restart. The server is automatically reset.

Update to store the configuration

Figure 22. The vcomui Window

Figure 21. The Server Properties Window

NNoottee::

ESP Manager Navigation:

- Use the mouse to select the property and parameters or

- Tab to move to the next property

- Tab+Shift to move back to previous property

- Arrows to move between properties or change values or contents of the

current property

- Enter to select update or cancel

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Step 9: Double click on

Searching Server to update the information in the

Serial Server List and verify the changes.

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Server Properties Configuration

Server Properties Configuration

CChhaapptteerr 55:: CCOONNFFIIGGUURRIINNGG TTHHEE EESSPP990044

SSEERRVVEERR PPRROOPPEERRTTIIEESS

The VLINX Serial Server can be configured using any of four different user
interfaces: the

Telnet. The Server Properties described in this chapter can be changed from

any of these user interfaces.

Description of the Server Properties

Server Name

A new Server Name of up to 16 characters can be entered. If more than one
ESP901 or ESP902 or ESP904 Servers are connected on the LAN it is
recommended that a new name be assigned to each. When the ESP Manager
finds ESP Servers on the LAN it displays the server name and IP Address
allowing the user to distinguish between ESP servers.

Password

Entering a password activates a security feature on the serial server. Once a
password is entered it will be required to access the menu and make changes.

DHCP

DHCP servers are a part of numerous LAN management systems. The DHCP
field provides two choices:
default, setting. When enabled, the ESP904 will send a DHCP request to the
DHCP server, which will assign a dynamic IP address, net mask, and
gateway to the ESP904. If a DHCP server is not available on the network the
ESP904 will time out after 10 seconds and the default values will remain.

ESP Manager software, the Web Server, Console Mode or

Disable and Enable. Disable is the normal, or

NNoottee::

A dynamic address assigned by the DHCP server may change if the ESP904
loses the Ethernet connection or power is removed. The host (client)
communication software requests a connection to the specific IP address of the
serial server. If the DHCP reassigns a different IP address the software will not
be able to communicate with the hardware. Therefore, using a static IP address
is recommended.

IP Address

Software or hardware attempting to access the ESP904 server via the
network must know the

IP Address of the server. A static IP address is

retained and remains the same each time the server is powered up or
starts/restarts. The default IP address of the ESP904 server is printed on a
label on the bottom cover of the ESP904. Entering an appropriate address in
the IP Address field and updating the server will change the server’s IP
address. The network administrator can assign/establish the static address or
group of addresses to be used.

The IP Address of the ESP904 server can be confirmed using the DOS Ping
command.

NNoottee::

To use Ping to check for communications:

- Access a DOS window (in XP click on Start, then Run)

- At run prompt enter: CMD

- In the DOS window enter: Ping xxx.xxx.xxx.xxx (IP address for the ESP904
to be confirmed)

- The command will return the Ping results indicating 4 replies

Netmask

The default LAN netmask is configured for a Class C address. The user may
change this. Default is 255.255.255.0

Gateway

The Gateway IP address allows users to access the serial server from outside
the LAN.

MAC Address

The MAC address is fixed and cannot be changed. It is assigned in the
factory. Every Ethernet device manufactured has it own unique MAC
address.

Link Status

Link status automatically displays the type of Ethernet connection. It will
either display 10BaseT or 100BaseTX in full duplex or half duplex. This will
depend on the LAN, switches, hubs used in the LAN topology.

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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.

NNoottee::

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.

NNoottee::

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)

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,
the ESP904 menu must match the
settings.

NNoottee::

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

TCP or UDP Server to use this feature. The default setting is

as a

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.

NNoottee::

Refer to Chapter 1 Paired Mode

Direct IP or Virtual COM, the port number set in

Virtual COM or socket software port

• When using the

• When using a

• When using

up one as a

• When connecting to a server that does not support

Client (no Heartbeat).

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Virtual COM Port feature, select Server.

TCP or UDP Socket program, select Server.

Paired Mode communication between two serial servers set

Client and the other as a Server.

Heartbeat, select

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.

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Server Properties Configuration

Update/Save

Updating using ESP Manager

If using the Server Properties screen for configuration, click the Update
button to store the configuration settings for each serial port separately. This
also resets the ESP904 Server. Click on
confirm the new settings.

Saving using the Configuration Menu

If using the Configuration Menu in Telnet or Console Mode, Tab to Save,
then press

Enter.

Searching Server to download and

Server Properties Configuration

There are five options shown at the bottom of the menu:

Running, Reset and Status. Use Tab, Backspace, or arrow keys to move the

cursor to the option position, and then press

• Save stores the configuration data to ESP904 flash memory, and resets

it.

• Default restores the editing configuration data to factory default settings.

• Running restores the editing configuration data to the last values stored

in the flash memory.

• Reset re-boots the ESP904 making it available for a client connection.

• Status displays how many Ethernet packets and serial bytes are

transmitted and received. A refresh button is available to update the
displayed figures.

• Refresh/Space Bar: Press to refresh the configuration page

Saving using the Web Server Interface

• Operates the same as the Configuration Menu except it does not have the

Status feature.

Save, Default,

Enter.

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Installing Virtual COM Port

CChhaapptteerr 66:: IINNSSTTAALLLLIINNGG VVIIRRTTUUAALL CCOOMM

Installing Virtual COM Port

The program searches the LAN for all available ESP901/ESP902/ESP904
Serial Servers. When complete, the
displays a list of the servers that were found.

Found Server window appears and

PPOORRTTSS

The Virtual COM Port feature allows Windows platform software, using standard API
calls, to be used in an Ethernet application.

The Install Virtual COM port software adds an ESP904 (COM#) port to the computer.
This shows up in the Device Manager. The COM number can be selected from a list of
available numbers. For example, in a computer already having a COM1 and COM2,
COM3 to COM 254 is available for the ESP904. It is recommended that COM Port 5
or higher be selected. The virtual COM port looks like a standard COM port to most
Windows based applications which allows the software to open a connection with the
serial port located anywhere on the LAN/WAN. When using the virtual COM port the
ESP904 is configured as a TCP or UDP Server.

Virtual COM Port Installation

Step 1: In Windows, select Install Virtual COM from the Programs list.

Start → Programs → B&B Electronics → VLINX → ESP Servers
→ Install Virtual COM

Search Setup window will appear.

The

Step 2: Click on

Search all reachable servers and click on OK.

Figure 24. The Found Server Window

Step 3: Highlight the Server at the IP Address to be mapped to a virtual

COM port, then select

OK.

Figure 23. The Search Setup Window

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Figure 25. The COMInst Window

Windows XP provides a notice concerning Windows Logo testing for XP.

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Installing Virtual COM Port

Installing Virtual COM Port

Matching the ESP904 and Virtual COM Port Settings

The settings of the virtual COM ports in the Device Manager and the ESP904
Configuration menu must match. If the settings do not match, the virtual
COM ports will not work. If these settings are changed in the Device
Manager, it will only affect the operation of the virtual COM port. It will not
change the settings stored in the ESP904. Use the ESP Manager to change
the ESP904 Server settings.

Figure 26. The Windows Logo Testing Window

This XP feature simply indicates that these drivers have not yet undergone
the Microsoft testing procedures required to use the Windows XP Logo on
the packaging. Driver compatibility is not affected.

Step 4: Select

Continue Anyway to proceed with the installation.

The Protocol TCP/UDP, IP Address, and Port Number will mirror the
settings of the selected serial server.

Step 5: After setting all four ESP Serial Ports as virtual COM ports, select

Cancel on the Found Server form.

NNoottee::

PCs may have hardware COM ports and devices such as Modems, IR ports or
USB based COM ports that are not currently connected Try selecting a COM
number above COM4 if problems occur.

The default Flow Control setting is None. RTS/CTS can be selected if used
by the application program and serial hardware. The ESP Server must be set
to match.

Step 1: Use Device Manager to

View New Ports

Confirm the virtual COM ports in the Device Manager.

Step 2: Double-click

Ports to view the list of COM port numbers.

The installed Virtual COM port will be displayed as

Figure 27. The Device Manager Window

VLINX ESP (COM #).

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Step 3: In the Device Manager select a VLINX ESP COM#. Double-click it to

bring up the

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Properties window.

Installing Virtual COM Port

Installing Virtual COM Port

.

Figure 28. The VLINX ESP (COM3) Properties Window

Step 4: Select the Configuration or Port Settings tab. This screen allows

the settings to be changed if necessary. Click on

Cancel to keep the

existing settings.

Step 5: Click on

OK to change the settings. Use Refresh in the Device

Manager if Windows does not auto refresh.

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42 Chapter 6 Manual Documentation Number: ESP904-0504

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Removing a Virtual COM Port

Removing a Virtual COM Port

CChhaapptteerr 77:: RREEMMOOVVIINNGG VVIIRRTTUUAALL CCOOMM

PPOORRTTSS

The ESP904 Management software Uninstall Virtual COM Port feature will
remove a mapped COM port in the Device Manager of Windows 2000 and XP
operating systems. It may also be removed in the Device Manager of Windows
98, ME, NT, 2000, and XP. Windows 98 users also will find a

feature in the Programs file.

COM

Removing the Virtual COM port with ESP904
Manager

Step1: In Windows, select VLINX ESP Manager from the Programs list.

Start → Programs → B&B Electronics → VLINX → ESP Servers
→ VLINX ESP Manager

Step 2: In the

Highlight the mapped COM port number to be removed.

ESP Manager window select the Virtual COM List tab.

Remove Virtual

Step 3: Select

Uninstall Virtual COM button. The Manager will ask for

conformation. Select

OK to complete the uninstall procedure.

Figure 30. The vcomui Dialogue Box

Removing the Virtual COM Port using Device
Manager

NNoottee::

The screen shots were taken from a Windows XP operating system

Figure 29. The ESP Manager Window

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Step 1: On the Desktop select Start → Settings → Control Panel.

Step 2: Select the

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System icon when the manager window opens.

Removing a Virtual COM Port

Figure 31. The Control Panel Window

Removing a Virtual COM Port

Step 4: Highlight

top of window and select

ESP904 (COM #) to be removed, go the Action tab at the

Uninstall. A confirm Device Removal

window will appear.

Step 3: Select Device Manager in the Systems Properties window. In the

Device Manager window select the

+ next to Ports (COM LPT) to

expand.

Figure 32. The Device Manager Window

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Figure 33. Confirm Device Removal

Step 5: Select OK to proceed.

The ESP904 COM # will be removed and the Device Manager window will
refresh and display the remaining COM ports

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Upgrade Mode

Upgrade Mode

CChhaapptteerr 88:: UUPPGGRRAADDIINNGG TTHHEE EESSPP990044

FFIIRRMMWWAARREE

New ESP904 firmware updates may become available through the B&B
Electronics website for installation into the ESP904. The firmware can be
uploaded to the ESP904 using either a virtual COM port connection or
hardware COM port connection to ESP904 serial port 1.

Downloading the Firmware

Make a folder to receive the firmware file. Download the compressed
software file from the B&B Electronics website. Unzip or expand the file
into the (.hex) format so it will be ready to upload to the ESP904.

Upgrading Via ESP904 Manager

The ESP Manager software can upload new firmware to the server using a
direct PC connection via Port 1 of the ESP904, or using a virtual COM port
mapped to Port 1.

NNoottee::

If connecting directly to a computer serial port, connect a null modem cable
between the Computer RS-232 port and the ESP904 Port1 serial port.

Upgrading the Firmware

Step 5: Double-click on the Firmware Upgrade icon (or click on the Server

menu and

Step 6: In the

will appear. Locate the folder that contains the firmware .hex file.

Select the file and click Open. The Open dialogue box will

disappear.

Step 7: In the

transferring the firmware.

Step 8: Click on

Step 9: In the

Parity and Stop bits to the same values as set up in the Server
Properties

Firmware Upgrade)

Upgrade window, select Browse. The Open dialogue box

Upgrade window select the serial port to be used in

a. If connected directly from the computer to Port 1 of the

ESP904 the port will typically be COM1 or COM2

b. If using a virtual COM port to upgrade via the network,

identify the virtual COM number and address mapped to
Port 1 on the ESP904.

Upgrade

Port Settings window set the Bits per second, Data bits,

window. Click OK.

Preparing the Software

Step 1: From the ESP Manager, in the Serial Server List window, double

click on the server to be upgraded. The
will appear.

Step 2: If using a direct connection to serial port 1 to upload the firmware to

the ESP904, set the baud rate to
upload.

Step 3: Set the

button.

Step 4: Click

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Console Mode field to upgrade and click on the Update

Yes on the vcomui window to restart the ESP904.

Server Properties window

115.2k for the fastest possible

Figure 34. The Port Settings Window

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Upgrade Mode

Step 10:

Upgrade progress will be shown until the Upgrade finished!

Upgrade Mode

message is shown. Select OK.

Figure 35. Upgrading in Progress

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Using Console Mode

Using Console Mode

CChhaapptteerr 99:: UUSSIINNGG CCOONNSSOOLLEE MMOODDEE

Before the ESP904 is installed on a LAN the Console Mode can be used to
change the settings from the defaults. The ESP904 is shipped with Port 1 set
in the

Console Mode. Connect a crossover (null modem) cable between the

ESP904 Port1 and the COM port on the Computer.

NNoottee::

See Chapter 5 for details of each Server Property Settings.

Console Mode Setup

Step 1: Apply power to the ESP904. The power and ready LED will light.

Step 2: Using a VT100 Terminal emulation program (typically

HyperTerminal in Windows) open the computer COM port

connected to the ESP904 Port 1 (via an RS-232 crossover cable).

Step 3: In the HyperTerminal

o Baud rate: 9600
o Data bits: 8
o Parity: None
o Stop bits: 1
o Flow control: None

OK

Click

Step 4: To view the

Configuration Menu, press the space bar.

Port Settings window set:

Figure 36. The Console Mode Server Configuration Screen

Navigating the Configuration Menu

Pressing the Space Bar refreshes the page. Tab, Back Space and arrow keys
can be used to navigate to the desired field. The following fields can be
changed by pressing

• DHCP

• IP Address

• Netmask

• Gateway

• Console mode

• UART Port

• RS-232, RS-422, RS-

485

• Baud Rate

• Data/Parity/Stop

Enter and selecting from the list that appears:

• Flow control

• TCP/UDP Port

• Connection mode

• Timeout

• Remote IP address

• Save

• Default

• Running

• Reset

• Status

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Step 5: Once all the changes have been made move to the Save field and

Enter.

select

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Using Console Mode

Using Console Mode

Using a Password

If a password is used it must be entered before the Configuration screen can
be seen. If the server is accessed with a password but no changes are made,

Reset to end before disconnecting.

Figure 37. Saving and Restarting the Configuration

The restart message will appear.

Step 6: Select

Yes to save changes. This is necessary to write the settings to

the server.

Step 7: To view the changes press the

space bar. The screen will reappear.

Figure 38. Assigning a Password

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Using the Web Server

Using the Web Server

Navigate and change properties as required using the mouse and keyboard.

CChhaapptteerr 1100:: UUSSIINNGG TTHHEE WWEEBB SSEERRVVEERR

The Web Server can be used to configure the ESP904 from any web browser
software (such as Internet Explorer). Server properties can be set up using
two browser pages.

NNoottee::

See Chapter 5 for details on Server Properties.

Setting Server Properties

In Internet Explorer type the IP Address of the ESP904 into the address field
near the top of the window and press
appear:

Enter. The following window will

To change serial port properties, click on

Uart Port on the left side of the

browser window. The following page will appear:

Figure 40. The Web Server Serial Port Properties Page

Figure 39. The Web Server Page

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Click on Save to store changes to the ESP904. Settings for each Port must be
saved separately.

NNoottee::

If new property settings are not saved before leaving this page they will not
take effect.

Return to the main Server page by clicking on Server on the left side of the
browser window.

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RS-232 Connections

RS-232 Connections

RS-232 Straight-through Cable Connections

AAPPPPEENNDDIIXX AA:: RRSS--223322 CCOONNNNEECCTTIIOONNSS

In the RS-232 mode, the ESP904’s ports are configured as DTEs like a
computer. If the device connected to the ESP904 is configured as a DCE use
a straight through cable wired as shown below:

ESP904 DB-9 Pin-outs in RS-232 Mode

RS-232

Signal Name

Carrier Detect In DCD 1

Receive Data In RXD 2

Transmit Data Out TXD 3

Data Terminal Ready Out DTR 4

Signal Ground --- GND 5

Data Set Ready In DSR 6

Request To Send Out RTS 7

Clear To Send In CTS 8

Ring Indicator In RI 9

Figure 41. RS-232 Connections in a DB-9 Connector

DTE RS-232 DB-9M

Pin

RS-232 Signal Names DB-9

Carrier Detect CD 1 1 CD

Receive Data RD 2 2 RD

Transmit Data TD 3 3 TD

Data Terminal Ready DTR 4 4 DTR

Signal Ground/Common GND 5 5 GND

Data Set Ready DSR 6 6 DSR

Request to Send RTS 7 7 RTS

Clear to Send CTS 8 8 CTS

Ring Indicator RI 9 9 RI

Figure 42. Straight-through (DTE to DCE) DB-9 to DB-9 Serial Cable

with RS-232 Signal Designations

Connections DB-9

Pin#

Pin#

RS-232 Crossover (null modem) Cable Connections

When connecting to a PC or another DTE device, use a crossover cable (also
called a null modem cable).

RS-232 Signal Names DB-9

Carrier Detect CD 1 1 CD

Receive Data RD 2 2 RD

Transmit Data TD 3 3 TD

Data Terminal Ready DTR 4 4 DTR

Signal Ground/Common GND 5 5 GND

Data Set Ready DSR 6 6 DSR

Request to Send RTS 7 7 RTS

Clear to Send CTS 8 8 CTS

Ring Indicator RI 9 9 RI

Connections DB-9

Pin#

Pin#

Signal

Signal

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Figure 43. Crossover (DTE to DTE) DB-9 to DB-9 Serial Cable with

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RS-232 Signal Designations

RS-232 Connections

RS-232 Straight-through DB-9 to DB-25 Conversion Connections

RS-232 Connections

RS-232 DTE Loopback Connections

Figure 46. Loopback Connections for RS-232

Figure 44. Connections for a DB-9 to DB-25 Straight-through Cable

RS-232 Crossover DB-9 to DB-25 Conversion Connections

Figure 45. Connections for a DB-9 to DB-25 Crossover (null modem)

Cable

For Transmit and Receive loopback, connect only those lines.

When Flow Control setting on the Serial Server is set for RTS/CTS, those
lines must be looped. Usually DTR and DSR must also be looped. The Flow
Control setting for the program must match the Server settings. The CD
connection is needed by some terminal programs to simulate Carrier.

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RS-422 Connections

AAPPPPEENNDDIIXX BB:: RRSS--442222 CCOONNNNEECCTTIIOONNSS

ESP904 DB-9 Pin-outs in RS-422 Mode

RS-422

Signal Name

Receive Data A (−) In RXDA (−) 1

Receive Data B (+) In RXDB (+) 2

Transmit Data B (+) Out TXDB (+) 3

Transmit Data A (−) Out TXDA (−) 4

Signal Ground --- GND 5

Clear to Send A (−) In CTSA (−) 6

Clear to Send B (+) In CTSB (+) 7

Request to Send B (+) Out RTSB (+) 8

Request to Send A (−) Out RTSA (−) 9

Figure 47. RS-422 Connections in a DB-9 Connector

Direction

RS-422

DB9M

Pin

RS-422 Connections

ESP904 pin-out

in RS-422 mode

RS-422 Signal Names DB-9

Receive A (-) RXDA(-) 1 TDA(-)

Receive B (+) RXDB(+) 2 TDB(+)

Transmit B (+) TXDB(+) 3 RDB(+)

Transmit A (-) TXDA(-) 4 RDA(-)

Ground GND 5 GND

Clear to Send A (-) CTSA(-) 6 RTSA(-)

Clear to Send B (+) CTSB(+) 7 RTSB(+)

Ready to Send B (+) RTSB(+) 8 CTSB(+)

Ready to Send A (-) RTSA(-) 9 CTSA(-)

Figure 48. RS-422 Connections with Flow Control

In the RS-422 mode, TXD lines are outputs and RXD lines are inputs.
Connect the ESP904 TXDB(+) line to the RXDB(+) line of the serial device,
and the ESP904 TXDA(-) to the RXDA(-) of the serial device.

If Flow Control is set for RTS/CTS, connect the ESP904 RTSB(+) to
CTSB(+) of the serial device and the ESP904 RTSA(-) line to the CTSA(-)
of the serial device. Connect from the ESP904 CTSB(+) line to the RTSB(+)
of the serial device and from the ESP904 CTSA(-) line to the RTSB(+) line
of the serial device.

RS-422

Device

Connections Signal

Pin#

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If connecting to Receive Only RS-422 devices, connect from the ESP904
TXDB(+) and TXDA(-) lines to the receive pairs on all serial devices.

Ground is signal ground and provides a common mode reference for the RS­422 Receiver and Transmitters.

NNoottee::

The RS-422 mode can be used for full duplex 4-wire RS-485 operation provided
that the ESP904 is acting as a sole master connecting to all the slave devices,
and all slave devices share the Receive signal lines to the master. Set Flow
Control for none, and omit connections to RTS/CTS line pairs.

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RS-422 Connections

RS-422 Connections

Figure 49. Loopback Connections for RS-422

The RS-485 Connections are half duplex, either Receive or Transmit, so

another half duplex device must be used to check operation.

Figure 50. RS-422 Connection with No Flow Control

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RS-485 Connections

RS-485 Connections

To connect 4-Wire RS-485 devices, the RS-422 Mode can be used provided
the ESP904 will be connected as a master in a single master system. If using

AAPPPPEENNDDIIXX CC:: RRSS--448855 CCOONNNNEECCTTIIOONNSS

multiple masters, the ESP904 cannot be used, as it does not tri-state the
transmitter in RS-422 mode.

ESP904 DB-9 Pin-out in RS-485 Mode

RS-485

Signal Name

Data B (+) In/Out DATA B (+) 3

Data A (−) In/Out DATA A (−) 4

Signal Ground --- GND 5

Figure 51. DB-9 Pin-out in RS-485 Mode

NNoottee::

Some RS-485 devices are marked opposite the RS-485 standard, which
defines the Data B line as positive relative to Data A during a Mark state before
enabling the transmitter, and after transmitting before tri-stating. If an RS-485
device does not respond, try swapping the Data B and Data A lines.

Figure 52. 2-wire RS-485 Connection

Direction RS-485 DB9M

Pin

Manual Documentation Number: ESP904-0504 Appendix C 65

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

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

66 Appendix C 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 [phone] – www.bb-elec.com

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

Network Connections

AAPPPPEENNDDIIXX DD:: NNEETTWWOORRKK

CCOONNNNEECCTTIIOONNSS

Network Connections

Crossover Ethernet Cable RJ-45 Pin-out

Standard Ethernet Cable RJ-45 Pin-out

RJ-45 Pin Signal Wire Color RJ-45 Pin

1 TX+ White-Green 3

2 TX+ Green 6

RJ-45 Pin Signal Wire Color RJ-45 Pin

1 TX+ White-Green 1

2 TX+ Green 2

3 RX+ White-Orange 3

4 Not used Blue 4

5 Not used White-Blue 5

6 RX- Orange 6

7 Not used White-Brown 7

8 Not used Brown 8

Figure 54. Pin-out for a Crossover Ethernet Cable

3 RX+ White-Orange 1

4 Not used Blue 4

5 Not used White-Blue 5

6 RX- Orange 2

7 Not used White-Brown 7

8 Not used Brown 8

Figure 53. Pin-out for a Standard Ethernet Cable

Manual Documentation Number: ESP904-0504 Appendix D 67

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

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com

68 Appendix D 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 [phone] – www.bb-elec.com

B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph [phone] – Fax [phone] – www.bb-europe.com