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RS-485 Connections

Appendix C

Manual Documentation Number: ESP904-4513m

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

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

Summary of Contents for RS-232

Page 1: ...Electronics Ltd Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com R RS S 2 23 32 2 R RS S 4 42 22 2 R RS S 4 48 85 5 Q Qu ua ad d P Po or rt t M Mu...

Page 2: ......

Page 3: ...B B Electronics Mfg Co Inc 707 Dayton Road Ottawa IL 61350 USA Phone 815 433 5100 General Fax 815 433 5105 Website www bb elec com Sales e mail orders bb elec com Fax 815 433 5109 Technical Support e...

Page 4: ......

Page 5: ...uding photography recording or any information storage and retrieval system without written consent Information in this manual is subject to change without notice and does not represent a commitment o...

Page 6: ......

Page 7: ...GUIDE 4 Hardware Setup 4 Software Installation 4 ESP904 Configuration 5 Install Virtual COM Ports on PC 6 Check Communications 6 CHAPTER 2 MAKING THE HARDWARE CONNECTIONS 7 PACKAGE CHECKLIST 7 ESP904...

Page 8: ...FOR SERVERS 22 CONFIGURE SERVER PROPERTIES 23 CHAPTER 5 CONFIGURING THE ESP904 SERVER PROPERTIES 27 DESCRIPTION OF THE SERVER PROPERTIES 28 Server Name 28 Serial Number 28 Password 28 DHCP 28 IP Addre...

Page 9: ...e Firmware 50 CHAPTER 9 USING CONSOLE MODE 51 CONSOLE MODE SETUP 51 Navigating the Configuration Menus 52 Using a Password 53 CHAPTER 10 USING THE WEB SERVER 55 SETTING SERVER PROPERTIES 55 CHAPTER 11...

Page 10: ...P904 4513m 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...

Page 11: ...ns TCP or UDP Client or Server operation configurable Software Support Windows 98 ME 2000 2003 NT 4 0 XP and Vista Firmware Upload for future revisions upgrades Configuration of Ethernet and serial po...

Page 12: ...ns 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...

Page 13: ...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 n...

Page 14: ...f a PC connected via an Ethernet LAN to an ESP904 Serial Server connected to the RS 232 port of a serial device Hardware Setup Figure 1 Quick Start Hardware Setup Step 1 Connect the ESP904 to the netw...

Page 15: ...ion screen Figure 2 The Server Properties Window Step 3 Change the Server Properties as required Enable DHCP to allow the ESP904 to generate its own IP address OR Obtain appropriate static IP Netmask...

Page 16: ...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 address determined in...

Page 17: ...er r 2 2 M MA AK KI IN NG G T TH HE E H HA AR RD DW WA AR RE E C CO ON NN NE EC CT TI IO ON NS S Package Checklist The ESP904 4 port serial server is shipped with the following items included ESP904 S...

Page 18: ...is being transmitted 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 s...

Page 19: ...the interfaces are configured as DTEs Data Terminal Equipment The connectors are DB 9M Serial Ports 1 2 3 4 Figure 5 The ESP904 Serial Port Connectors Serial Server Port Operational Modes Using the ES...

Page 20: ...ded from a PC via its serial port to the ESP904 Port 1 using RS 232 Upgrading also can be via the network connection using the ESP Manager software and a virtual COM port mapped to the ESP904 Port 1 N...

Page 21: ...nd 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 idle mark state Ground provides a common mode r...

Page 22: ...32 RS 422 and RS 485 operation are shown below 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 Termina...

Page 23: ...oftware 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 E...

Page 24: ...B Electronics Ltd Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Figure 9 The Install Shield Wizard Window Step 2 When the VLINX ESP Setup windo...

Page 25: ...1 792444 Fax 353 91 792445 www bb europe com Figure 12 The Install Shield Wizard Complete Window Step 4 Click Finish when the Install Shield Wizard Complete dialogue appears When finished dialogue box...

Page 26: ...Manager Step 5 If the ESP904 is not already connected to the network or to the Ethernet port on the computer connect it Apply power The Power indicator should light red the Link light should indicate...

Page 27: ...4 U US SI IN NG G E ES SP P M MA AN NA AG GE ER R The ESP Manager software allows Searching for servers connected to the network Displaying and changing the configuration of those servers Installing v...

Page 28: ...ver Cable N No ot te e 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 co...

Page 29: ...Exit Help Server Icons Firmware Upgrade Virtual COM Configuration Searching Server Uninstall Virtual COM Monitor Port Status Serial Server Virtual COM Lists Software Status Ready Updating Searching et...

Page 30: ...o the serial device since the IP connection was established o Serial RX Displays the number of bytes of data received from the connected serial device since the IP connection was established o DTR RTS...

Page 31: ...the mouse Exit Allows you to Exit the ESP Manager program Help Accesses the About vcomui dialogue box which indicates the software version number Server Icons Pane Firmware Upgrade Virtual COM Config...

Page 32: ...IP Address for the Serial Server All ports in a Serial Server have the same IP address Protocol Displays the currently selected TCP or UDP mode for the Serial Server Port Displays the port number for...

Page 33: ...nits that are not on the same subnet Routers on the network will block the standard broadcast used to find servers if Search all reachable servers is selected The user must set an IP address that conf...

Page 34: ...Details for setting Properties are shown in the next chapter Figure 21 The Server Properties Window N No ot te e ESP Manager Navigation Use the mouse to select the property and parameters or Tab to m...

Page 35: ...The Restarting Dialogue Box After eight seconds a dialogue box will ask whether you want to search for all reachable servers again Figure 24 The Server Search Dialogue Box While the Serial Server is...

Page 36: ...er ESP904 4513m 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 Irela...

Page 37: ...2444 Fax 353 91 792445 www bb europe com C Ch ha ap pt te er r 5 5 C CO ON NF FI IG GU UR RI IN NG G T TH HE E E ES SP P9 90 04 4 S SE ER RV VE ER R P PR RO OP PE ER RT TI IE ES S The VLINX Serial Ser...

Page 38: ...Server is connected on the LAN it is recommended that a new name be assigned to each When the ESP Manager finds a Serial Server on the LAN it displays the server name and IP Address allowing the user...

Page 39: ...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 I...

Page 40: ...firmware and when it was released is shown here Link Status Link status automatically displays the type of Ethernet connection It will either display 10BaseT or 100BaseTX in full duplex or half duplex...

Page 41: ...ne when setting ESP Port 1 as RS 485 or 4 wire RS 422 TCP UDP Protocol Select TCP Transmission Control Protocol or UDP User Datagram Protocol protocol If the application does not require a UDP connect...

Page 42: ...onnection Mode The Connection Mode field has three options Server Client and Client no heartbeat When Client or Client no heartbeat is selected the Connection at field automatically becomes active all...

Page 43: ...umber set in the ESP904 menu must match the Virtual COM or socket software port settings N No ot te e Example The Virtual COM default setting is TCP UDP Port 4000 If the port property is changed to 40...

Page 44: ...t character arriving Max Connection This field allows the user to configure the Serial Server to have up to eight TCP connections Remote IP Address This is a security feature activated by entering the...

Page 45: ...ay Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Figure 30 The Restart Dialogue Box The following dialogue box will appear Figure 31 The Restarting Dialogue Box After eight seconds a di...

Page 46: ...lnet Saving updating server properties is done from the Configuration screen Access the Configuration screen by tabbing through the list of screens on the left side of the window and highlighting Conf...

Page 47: ...y Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Web Server Interface The Web Server interface provides the same updating options as Console Mode and Telnet These are located at the bott...

Page 48: ...on Number ESP904 4513m 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 Galwa...

Page 49: ...his 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...

Page 50: ...353 91 792444 Fax 353 91 792445 www bb europe com The program searches the LAN for all available ESP901 ESP902 ESP904 Serial Servers When complete the Found Server window appears and displays a list o...

Page 51: ...Windows XP Vista Logo on the packaging Driver compatibility is not affected Step 4 Click Continue Anyway to proceed with the installation The Protocol TCP UDP IP Address and Port Number will mirror t...

Page 52: ...enu 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 no...

Page 53: ...s Ltd Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Figure 41 The VLINX ESP COM3 Properties Window Step 4 Click the Configuration or Port Settin...

Page 54: ...Number ESP904 4513m 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...

Page 55: ...P Manager software Uninstall Virtual COM Port feature will remove a mapped COM port in the Device Manager of Windows 2000 2003 XP and Vista operating systems It may also be removed in the Device Manag...

Page 56: ...d Ph 353 91 792444 Fax 353 91 792445 www bb europe com Step 3 Click Uninstall Virtual COM button The Manager will ask for conformation Click OK to complete the uninstall procedure Figure 43 The vcomui...

Page 57: ...00 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 Figure 44 The Control Panel Window Step 3...

Page 58: ...tlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Step 4 Highlight ESP904 COM to be removed and click the Action tab at the top of window then click Un...

Page 59: ...e 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 ESP Manager The ESP Mana...

Page 60: ...contains the firmware hex file Select the file and click Open The Open dialogue box will disappear Step 7 In the Upgrade window select the serial port to be used in transferring the firmware a If con...

Page 61: ...ESP904 is shipped in the Console Mode Connect a crossover null modem cable between the ESP904 Port1 and the COM port on the Computer N No ot te e See Chapter 5 for details of each Server Property Sett...

Page 62: ...onfiguration Menus There are six Console Mode screens Server Network Serial Mode Operation Monitor and Configuration Tab Back Space and arrow keys can be used to highlight the desired function on the...

Page 63: ...91 792445 www bb europe com Step 5 Once all the changes have been made move to the Save field and select Enter Figure 49 Saving and Restarting the Configuration The restart message will appear Step 6...

Page 64: ...ber ESP904 4513m 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 Irel...

Page 65: ...ha ap pt te er r 1 10 0 U US SI IN NG G T TH HE E W WE EB B S SE ER RV VE ER R The Web Server can be used to configure the ESP904 from any web browser software such as Internet Explorer Server proper...

Page 66: ...nmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Navigate and change properties as required using the mouse and keyboard To change serial port properties click Uart Port on th...

Page 67: ...nk Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Figure 52 The Web Server Operation Page Click Save to store changes to the ESP904 Settings for each Port...

Page 68: ...mber ESP904 4513m 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 Ire...

Page 69: ...operties to be configured N No ot te e See Chapter 5 for details on Server Properties Configuration Using Telnet Step 1 Ensure the PC and Serial Server are connected to the LAN Step 2 Apply power to t...

Page 70: ...sole mode and the Server screen will appear Navigating the Configuration Menu There are six Telnet screens Server Network Serial Mode Operation Monitor and Configuration Tab Back Space and arrow keys...

Page 71: ...444 Fax 353 91 792445 www bb europe com Step 5 Once all the changes have been made move to the Save field and select Enter The restart message will appear Figure 55 Saving and Restarting the Configura...

Page 72: ...ESP904 4513m 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...

Page 73: ...c VLINX ESP Manager and Virtual COM Driver software for Windows 98 ME 2000 2003 XP NT 4 0 Vista Dimensions ESP904 4 5 x 7 3 x 1 1 in 11 4 x 18 5 x 2 9 cm Power Environment Power Requirements 12 VDC 50...

Page 74: ...Telnet Mode Using HyperTerminal with VT100 emulation ESP Manager Using Windows 98 ME 2000 2003 XP Vista NT software Web Server Using a standard web browser such as Internet Explorer Default Server Set...

Page 75: ...com RJ 45 female 2 5 mm Tip Reset 1 1 mm 33 0 mm 43 0 mm 11 3 mm 33 0 mm 4 7 mm 113 7 mm DB 9M male DB 9M male DB 9M male DB 9M male 6 3 mm 6 9 mm center hole 10 mm 25 4 mm 3 7 mm hole 3 7 mm hole 3...

Page 76: ...umber ESP904 4513m 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 Ir...

Page 77: ...91 792444 Fax 353 91 792445 www bb europe com A AP PP PE EN ND DI IX X A A R RS S 2 23 32 2 C CO ON NN NE EC CT TI IO ON NS S ESP904 DB 9 Pin outs in RS 232 Mode RS 232 Signal Name DTE RS 232 DB 9M Pi...

Page 78: ...le 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 Figure 59 Crossover DB 9 to DB 9 RS 232 Serial Cable...

Page 79: ...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 Figure 60 DB 9 to DB 25 Straight...

Page 80: ...353 91 792444 Fax 353 91 792445 www bb europe com RS 232 DTE Loopback Connections Figure 62 Loopback Connections for RS 232 For Transmit and Receive loopback connect only those lines When Flow Contro...

Page 81: ...ax 353 91 792445 www bb europe com A AP PP PE EN ND DI IX X B B R RS S 4 42 22 2 C CO ON NN NE EC CT TI IO ON NS S ESP904 DB 9 Pin outs in RS 422 Mode RS 422 Signal Name Direction RS 422 DB9M Pin Rece...

Page 82: ...B of the serial device and from the ESP904 CTSA line to the RTSB line of the serial device If connecting to Receive Only RS 422 devices connect from the ESP904 TXDB and TXDA lines to the receive pairs...

Page 83: ...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 Figure 65 Loopback Connections for RS 422 The RS 485...

Page 84: ...ber ESP904 4513m 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 Irel...

Page 85: ...C CO ON NN NE EC CT TI IO ON NS S ESP904 DB 9 Pin out in RS 485 Mode RS 485 Signal Name Direction RS 485 DB9M Pin Data B In Out DATA B 3 Data A In Out DATA A 4 Signal Ground GND 5 Figure 67 DB 9 Pin...

Page 86: ...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 To connect 4 Wire RS 485 devices the RS 422 Mode can be used prov...

Page 87: ...Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com A AP PP PE EN ND DI IX X D D N NE ET TW WO OR RK K C CO ON NN NE EC CT TI IO ON NS S Standard Ethernet Cable RJ 45 Pin out...

Page 88: ...Electronics Ltd Westlink Commercial Park Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 www bb europe com Crossover Ethernet Cable RJ 45 Pin out RJ 45 Pin Signal Wire Color RJ 45 Pin 1 TX...

Page 89: ...B B Electronics Mfg Co Inc 707 Dayton Road Ottawa IL 61350 USA Phone 815 433 5100 General Fax 815 433 5105 Website www bb elec com Sales e mail orders bb elec com Fax 815 433 5109 Technical Support e...

Page 90: ...m 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 7...

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