Manual - Sparr Electronics Limited
Contents
1. EAD01 103 supports MODBUS protocol based communication User can sent MODBUS TCP command to the EAD through the Ethernet interface EAD will convert MOSBUS TCP queries to MODBUS RTU protocol and sends to serial side User can connect any device to the serial which is supporting MODBUS RTU protocol EAD will receive MODBUS RTU response from Serial device This MODBUS RTU response will be converted in to MODBUS TCP Protocol and transmits through Ethernet interface to the User MODBUS poll software can be used for MODBUS protocol communication Basically network configuration having eight parameters which are programmable and explained in section 7 1 If EADO1 103 operates under MODBUS protocol one extra parameter will come under this section that is MODBUS Using this user can Disable and Enabled MODBUS protocol Default Setting is Enable EADO1 103 Operation Under PPP Protocol PPP Point to point protocol is a protocol for communication between two nodes using a serial interface This is commonly used to act as the link layer protocol Ethernet Adapter EADO1 103 supports point to point protocol based communication EAD adds network connectivity to your devices by processing PPP protocol which is required to send and receive data over CDMA GPRS and Dial up network so your devices can be remotely controlled managed and monitored over the internet Because of its low cost it is ideal for high volume products which need low cost It reduces co2. Ethernet Adaptor 01 103 User Manual SPARR ELECTRONICS LIMITED Sparr Electronics Ltd No 43 YMS Complex HMT Main Road Mathikere Bangalore 560054 INDIA Phone 91 80 23602836 91 80 23606308 Fax 91 80 23608346 E mail info sparrl com Web http www sparrl com CONTENTS 1 UEP OAUC CON sisi eats daca ulacananwcelanvnsaainayia dcr uauwte usaina nesana osai i isna 01 1 1 About Ethernet Adaptor EAD Overview ccceceescseees 01 1 2 Network Protocol iss cciccsisswssedicasncssovetessnsdessiendsnaesescbies saatesusers 01 1 2 1 Ethernet Address or MAC Address sseeeeecseeeceees 01 1 2 2 Internet Protocol IP Address cecccssccssccsccssscceseces 02 1 2 3 Port Number ou icacidsinnactscasie vices eivansne cnswbtdele cans dedusinnncess 02 2 EAD Kit Contains eieren neee aeee EaR NEEE wanes 02 3 Product Description sesseseesesessssoesessesosossessesossesoesossesseseso ssoesccse 02 3 1 Serial Interface nessrscssssisssiscvsosreesrsso reret ertene ensi Eina E i 02 3 2 Network Interface nssccssiessrsediiseiisrrcesssrseridssssanssrrsisiisssis rores 02 33 LED functions sosser ieee entenien ainaiseen oiis e ie 03 3 4 Power Nput eisiea a a ea a viet iecteesevecaslecesess 03 4 Connection and Pinout Diagrams s sesseesesoesessesoeseesesossesessesossoesee 04 5 Programming through Hyper Terminal Telnet and Web Browser 06 5 1 Programming through
3. 3 Product Description This section describes various components of EADO1 103 and explains how to install it on a basic network 3 1 Serial Interface The EADO1 103 has a 9 pin RS 232 Male Serial connector in the Metal Box MB unit or with Open Wire with connectors for PCB Board Level Product depending on the model which can be connected to any Serial device 3 2 Network Interface EAD01 103 has one RJ45 Female 10 Base T or 100 Base TX Connector Ethernet port that supports up to 100 Mbps speed for connection to Local Area Network LAN through Hub or Switch You can also use a Cross Cable to connect to PC s LAN Card directly Sparr Electronics Ltd Bangalore 2 Ethernet Adaptor 01 103 3 3 LED functions Four LED s are located on the top of the unit One Marked as POWER which has RED LED second one marked as CONNECT which has YELLOW LED third one marked as TX which has GREEN LED fourth one marked as RX which has YELLOW LED The following table explains their functions LED state Function Red LED glowing Power On Yellow LED blinking EAD is connected to Ethernet Link Yellow LED Fast Blinking IP number conflict with other Device Both Red and Yellow LEDs BAD ig ready to use are glowing Will blink for 12 5 seconds and waits for Enter Character from Serial Port to get in to Configuration mode Green TX LED glowing Data is transmitting through serial Yellow RX LED glowing Data is receiving
4. signal Default Setting is Disable 7 3 12 Packet Data Some applications require the serial data to be collected and sent to server as fixed number of Characters In this case EAD can receive the serial data and encapsulate them in a single Packet and send the same in the LAN so that the there is always a sync between the serial device and the PC in the LAN This option by Default is Disable and can be Enable on need If it is Enabled we can set the input characters using number of input characters in packet parameter Refer 7 3 8 Sparr Electronics Ltd Bangalore 19 Ethernet Adaptor 01 103 7 3 13 DTR active on Connect Only DTR Data Terminal Ready will be activated when a network connection is established with EADO1 103 Default Setting is Disable 7 3 14 Exit Use this option to exit and come back to the previous selection menu 7 3 15 Defeat Long Ack User can Disable and Enabled delayed ACK Default Setting is Enable 7 3 16 Restart on loss of link This option is used to set the EAD to be restarted when the network connectivity has lost Default Setting is Enable 7 3 17 Telnet IAC 7 3 18 Telnet IAC terminal type When Telnet IAC is Enabled terminal type is VT100 7 4 Load factory defaults Use this option to program the factory default values for all the parameters of the EAD You can also load the factory defaults by pressing the Default Switch for 10 seconds continuously Please note that the YE
5. 103 in three possible ways They are described in detail as below 5 1 Programming through Hyper Terminal 5 1 1 Serial Port Login amp Programming of EAD01 103 Parameters 1 Use any Communication Program like Hyper Terminal XTalk and Mirror etc to configure EADO1 103 through RS 232 Serial Interface The Serial port settings should be set to 9600 bps 8 data bits No Parity 1 Stop bit with Flow control option selected as none Select appropriate Communication COM port to which the EAD is connected in the software 2 To enter the Configuration Mode Remove the RJ45 LAN Jack and power ON the EAD You will get a Message in the Hyper Terminal Network Error Press Enter for Configuration Waiting 12 5 Sec Press Enter Key to proceed with the Configuration 3 Once the EAD senses the Enter key the unit will first send the following string which will appear on Screen Enter configuration password Enter the default Password that is 77277 If the password entered is wrong then the EAD will prompt you to re enter Correct Password for three times If all the three attempts fail then you will have to follow step 2 in getting the option to enter a password again If you are still not successful please do call us for resetting of Password with Master Password from Factory Sparr Electronics Ltd Bangalore 6 Ethernet Adaptor 01 103 la EAD01 103 HyperTerminal gt f File Edit View Call Transfer Help S
6. Enter the Host Name as the IP that you set in your system ARP table and the Port should be 7353 Follow the steps mentioned above for programming through Telnet and setup the EAD as you require Sparr Electronics Ltd Bangalore 8 Ethernet Adaptor 01 103 Please make a note that you may not be able to PING the Device as of now until you set store an IP Number permanently 5 4 Programming through WEB BROWSER EAD can also be programmed through the web browser using http protocol All the EAD setup parameters are not programmable through the web browser If you do not know the IP Number of the EAD you can press the LOAD DEFAULT switch for 10 seconds continuously to load EAD Default parameter values and then use IP number 192 168 0 254 in the browser We recommend you to use internet Explorer 6 0 and above as browser 5 4 1 Starting up In order to program EAD from web browser open a new web browser window in your computer Enter http and the correct IP Address in the browser address field and press the Enter key Enter the Password when prompted Default password is 77277 Change the parameters as per your choice For detailed description on parameters of EAD see later section For example If the IP Number of the EAD is 192 168 0 254 then you have to enter http 192 168 0 254 in the web browser address field and press Enter Key After changing the parameter value in any of the browsed page you nee
7. Hyper Terminal ccccccsscsscessceecees 06 5 1 1 Serial Port Login amp Programming of EAD Parameters 06 5 2 Programming through Telnet ccccsccscccccsccsccsccsccsccssscesce 07 S 3 Auto IP Pr gramming ioc cis veccesisciie vs ons coscesesassesssecsect ss ennsiesens esses 08 5 4 Programming through Web browser sssscsccsccscessssccescescssees 09 524 V Starting Ups sscasccock sees cacescdecnseaceguecsescccsedgcsescssveececeesss 09 6 EAD Setup Parameters i iscccsdsccccsevsscesssiesavsesscevsceccsececsescecssecseseewaseesaneee 13 7 Parameter Description sci ecs sc sienscccees vaste sede vedetcoseess cope tedevigeedepedecesetesteetss 14 7 1 Network Configuration cscccccscccccncsccsccscescescesccssesccssesseese 14 7 2 Serial Configurration ccccccccccccccsscccscccccsccsscsscsscsccsscsccescsss 15 7 3 Server ConmfOuratiOns cicccevsescuvcasdsssesvcvenevscdescaes savers cevecsdevesdsvdete 16 7 4 Load factory defaults eeessessssssssssssessssssssssssssssssssssssssooooooso 20 7 5 Change Configuration Password ccccsccsccsccsccsccscceccescscesscees 20 7 6 Save and Exit scsi scetedsseusssdsveasssesansiecdsseseseseasescasasecuaess sae S aaao 20 7 7 Exit Configuration Mode sscscccssccsccscccscccscccsscsscsssssessceces 20 7 8 To upload new firMWwaLre csecceccecscccccccescesccscceccescescesceeessesees 20 7 9 Enable
8. and ensures that only the computers or devices with these IP number can Ping Telnet to ports 7353 or 7727 and use browse interface For all others these operations will not be permitted Note 1 Please note that once this is set the EAD Will be accessible even for ping only from the PC having that IP address 2 There is one exception to this in case of forgotten IP numbers in the list The IP number 192 168 0 1 is the only IP permitted always even if it is not set in the IP Filter table Do make a note of the following points 1 Ifthe unit is set with Gateway IP address you should add the same in IP Filter list 2 If you are setting the EAD to Auto connect to Server on Power up or based on input characters then the Server IP should be added to this list 7 3 2 Start Mode There are three types of start modes available 0 for Auto start 1 for Manual mode and 2 for Input character Auto Start This mode is selected when you want EAD to automatically connect on Power Up to a Server in Network running any application listening for incoming connections The connection parameters like the Remote IP address and the TCP port number parameters have to be configured and saved for this If Automatic connection method is selected here you can program the time to get connected after switching on the unit also all parameters must be provided i e Remote IP Remote port number Start mode 0 It will connect to the programmed IP addres
9. as TCP IP data type and converts back the TCP IP data received through the network into serial data to transmit back to the equipment EADO1 103 also supports UDP Protocol for Broadcast kind of application The EADO1 103 allows you to network enable a variety of serial devices that were not originally designed to be networked This capability brings the advantages of remote management and data accessibility to thousands of serial devices over the network The EADO1 103 is the low cost Serial RS 232 to Ethernet LAN 10 100 Mbps connectivity system using the TCP IP protocol and based on a cold fire high speed 32 bit microprocessor It is having built in web server The EADO1 103 supports RS 232 serial communication allowing virtually any asynchronous serial connectivity device to be accessed over a network Some models do Support RS 485 and RS 422 connectivity as add on feature As for the Internet connectivity the EADO1 103 supports open network protocols such as TCP IP allowing Serial Devices to be accessed over broadband network or conventional LAN Local Area Network environment The EADO1 103 provides the management console using Web Browser Telnet and Serial console port under the password protection support The EAD was designed to accommodate the unique requirements of the Retail POS Security Automation and Medical marketplaces Parts of this manual assume the knowledge on concepts of the Internetworking protocols and serial communicat
10. can send data in a pattern like frame In this 2 pattern are there namely Pattern 1 and Pattern 2 START of the frame and END of the frame we need to be set Selecting O in serial configuration menu we can set the Starting letter or word of the frame and Ending letter or word of the frame which pattern we are selected that start of the frame and end of the frame we need to set which data we are sending in there start and end other wise data we can t send In between the frame maximum 1K data we can send Default Setting is START and END 13 _ EAD operation in RS 232 RS 422 RS 485 Modes Ethernet Adaptor EADO1 103 supports RS 422 and RS 485 Serial Interface connectivity in addition to RS 232 The serial option is available and is configurable through Hyper Terminal or Telnet or through browse interface 13 1 Physical Connection RS422 The color of wires used for RS485 2 wire and RS422 4 wire are as below 1 Brown RX 2 Black RX 3 Orange TX 4 Red TX Note Please ensure the proper color coding amp signal type while connecting to the actual Serial device 13 2 Two Wire Operation RS 485 a Short TX and RX b Short TX and RX Take these two wires and connect to the Device s 2 wires with correct Positive and Negative polarities Select option 2 in the Serial Interface or Telnet mode selection 13 3 Four Wire Operation RS 422 a Tx and TX of our EAD unit should go to RX and RX of th
11. might encounter a problem that you cannot solve yourself Sparr Electronics Ltd Bangalore 27 Ethernet Adaptor 01 103 PROBLEM CHECK Reset Problem When You Power on the EAD without Connecting LAN Cable POWER ON LED will blink for 12 5 seconds and then will remain on If you connect LAN Cable the YELLOW LINK LED should glow Link is not detecting Check the LAN cable Not able to connect to LAN Check the LAN cable when you connect the LAN cable to EAD YELLOW LED should glow Check the IP Address and Port Number programmed Getting junk character in serial Check the serial settings side 1 Baud rate 2 Flow control and 3 Data parameter Check the Serial connection from devise to EAD Not able to send data from Check the Serial connection serial device to EAD Checks the Tx Rx are connected to corresponding pins For serial pinout details refer the Connection and pinout diagrams section in the manual 16 Glossary of Terms In the section we give brief definitions of several important networking terms and acronyms A ARP Address resolution Protocol Address Resolution Protocol ARP is a protocol for mapping an Internet Protocol address IP address to a physical machine address that is recognized in the local network A table usually called the ARP cache is used to maintain a correlation between each MAC address and its corresponding IP address ARP provides the protocol rules for making this correlation and p
12. parameters also Default Setting is Disable Sparr Electronics Ltd Bangalore 21 8 Factory Default values Ethernet Adaptor 01 103 Parameter Default value Password T7277 IP Address 192 168 0 254 Netmask 255 255 255 0 Gateway Nil DNS IP Address Nil Port number 7727 Transport protocol TCP Network Interface 100 Mbps Full duplex DHCP Disable Baud rate 9600 Data Parameters N 8 1 Flow control None Serial Interface RS 232 Character wait timeout 0 Sec Inter character Delay 0 Sec Connection status reporting Disable Connection time out 30 sec XON XOFF Pass through Disable IP Filtering 000 000 000 000 Start mode Auto Accept incoming connection Enable Remote IP Address 000 000 000 000 Remote port number 00000 Send CR with LF Disable Accept serial data when not connected Enable Number of Characters to Send 254 Connection Inactivity timeout 300 Seconds Disconnect Active connection on Data 000000000000 Disconnect Active connection on DSR Disable Packet Data Disable DTR active on Connect Only Disable Defeat Long Ack Enable Restart on Loss of Link Enable Enable Boot Messages Disable Disconnect character Disabled Rx Buffer 2K Packet Control Disable Start Mode Character 1 Sparr Electronics Ltd Bangalore 22 10 11 Ethernet Adaptor 01 103 EADO1 103 Operation Under MODBUS Protocol Ethernet Adaptor
13. 00 A Remote Port number 0 A Send CR with LF Disable f Accept serial data when not Enable A connected No of characters ina packet 254 A 1 254 Connection inactive timeout 300 1 65534 sec 65535 to Disable Disconnect active connection ae 00 oo 00 00 oo 0 Disconnect active connection on DSR Disable f DTR active on connect only Disable v Defeat Long ACK Enable f Restart on loss of link Enable v Telnet IAC Disable v Pack Data Disable f Save amp Reboot Load Default lt m o X Googie P Figure 13 EADO1I 103 SERVER configuration page in browser Sparr Electronics Ltd Bangalore 12 Ethernet Adaptor 01 103 The Main Configuration Menu items are listed and explained below a b c d e f g h i Network configuration Serial configuration Server configuration Load factory defaults Change configuration password Save and Exit Exit To upload new firmware Enable Boot Messages 0 Disable 1 Enable In the Network configuration section there are eight parameters as mentioned below a b c d e f g h i IP Address Netmask Gateway DNS IP Address Port number Exit Transport protocol 0 TCP 1 UDP Network Interface DHCP 0 Disable 1 Enable Under the Serial configuration menu there are seven parameters a b c d e f g h i Baud rate Data Parameters Flow control Serial I F Mode Character wait
14. AD connects serial devices through a TCP data channel or through a telnet connection to computer or other device servers EADO1 103 provides Ethernet connectivity to your products quickly and economically During the transmission of data from serial side to Ethernet data is saved in a flash memory to prevent data loss due to loss of network connectivity and power failure Basically serial configuration having seven parameters those are explained in section 7 2 If EADO1 103 using data backup 5 extra parameters will come under serial configuration The available options are described below Serial data Backup Serial data backup will Enable backup of Data to flash non volatile memory Up to Baud rate 57600 only Default Setting is Disable Trigger data backup on Power OFF This will Enable backup of data immediately on power loss Default Setting is Enable Trigger backup on inactive time out Trigger backup on inactive time out is Enable enhanced data backup during large power fluctuations The range is from to maximum of 65534 msec Default setting is 65535 milliseconds Enhanced data backup protection Enhanced data backup Protection is Enable backup of data immediately during inactivity in data transfer Default Setting is Enable Note If you want to work with serial data backup at least one trigger should be enabled Sparr Electronics Ltd Bangalore 24 Ethernet Adaptor 01 103 Data Processing This is data sending process we
15. Boot MESSages c os icscccdisssssecacesccedvactesivesicceeedesticesie dais dendeute soos 20 8 Factory Default Values cccscscsscscscsscscscscsssssssscssscscsscscscscsceceens 21 9 EAD01 103 Operations under Modbus Protocol scssecceessessees 22 10 EAD01 103 Operations under PPP Protocol ssscccecceceeseeceees 22 11 EAD01 103 Operations under SNMP Protocol ccsecescescesccees 22 12 EAD01 103 Data B ack py sisi caisidess civnawsiaaivsavwca eddies cancenssae ie save deeuteas ae 22 13 EAD Operation in RS 232 RS 422 RS 485 Modes seeseesseseees 23 14 Product Physical Details sss cecinssccsss cetavseevesssicenwsvseosendenveveneveveseseotivweess 24 15 Troubleshooting eesseeseesosecssssescssocscssocesossscssosesessocecssoeesessoseseee 26 16 Glossary of Terms vicssssccoscicsecsxcnavctvessscconssvaceeasevessesetesestedesadasaeveneenss 27 17 Declaration of Conformity cccscscsscscscscscsccscscscscscescscscscesecacass 32 Ethernet Adaptor 01 103 1 Introduction 1 1 About Ethernet Adaptor EAD01 103 Overview EAD01 103 is a Device that converts RS 232 serial data into TCP IP protocol It enables remote gauging managing and control of a Serial Device through the network based on Ethernet and TCP IP by connecting to the existing equipment with RS 232 serial interface In other words EAD is a protocol converter that transmits the data sent by Serial equipment
16. Connection Set the incoming connection as enable or disable This should be enabled for a Computer in the Network to initiate connection to the EADO1 103 This can be disabled if EADO1 103 makes the connection to the Server and does not require connection from Server Default setting is Enable 7 3 4 Remote IP Address When the start mode is Auto start automatic connection or based on Input Character Mode EAD makes a connection to this IP address on the network This IP address should be within your Network IP Range Default Setting is 0 7 3 5 Remote Port Number The remote TCP port number must be set for automatic connections and for connection based on Input Character Mode This parameter defines the port number on the target host to which a TCP connection is attempted This works in conjunction with Remote IP Address Default Setting is 0 7 3 6 Send CR with LF EAD in addition can send a line feed character LF with every Carriage return CR received from the Serial Port to the Host PC if this option is enabled The available option is Disable or Enable Default Setting is Disable Sparr Electronics Ltd Bangalore 18 Ethernet Adaptor 01 103 7 3 7 Accept serial data when not connected This setup is basically to Enable or Disable the EAD to buffer the serial data when there is no TCP Connection to the Server The maximum buffer size is dependent on the value set in Rx Buffer set under Serial configuration Default Setting
17. LLOW LED CONNECT LED will be off when LOAD FACTORY DEFAULT switch is pressed continuously for 10 seconds After 10 minutes it will be on Refer Default values in section 8 7 5 Change Configuration Password Select this option to change the password required for entering in to Configuration Mode for making any changes to the Settings Default password is 77277 This password is needed for programming through Serial and Telnet This will take only alphabets A Z a z digits 0 9 and will not allow any symbols It must have minimum 3 characters It will allow maximum 9 characters Sparr Electronics Ltd Bangalore 20 Ethernet Adaptor 01 103 7 6 Save and Exit To save the programmed parameters select this option from the main menu EAD will take some time to save the data you have selected and programmed Once the new values are stored EAD automatically will exit from the programming configuration mode and will go to Data Connection mode ready for communication or to setup mode if LAN cable is not connected 7 7 Exit Configuration Mode Select this option to exit from the configuration mode without saving the data 7 8 To upload new firmware Select this option to read the instructions to upload a new firmware 7 9 Enable Boot Messages Use this option as enable to display initial booting sequence messages of EADO1 103 like Firmware version and MAC Address If DHCP option is Enabled this will display the network
18. allow the document to be viewed with a web browser such as Internet Explorer or Netscape HTML defines the structure of tags and attributes used to create Web text documents HTTP HTTP Hyper Text Transfer Protocol defines how messages are formatted and transmitted and what actions the Web server should take I IP address An IP address is 32 bit identification number assigned to networking devices connected to a TCP IP network such as the Internet IP address is written for example in the form 192 168 206 10 Sparr Electronics Ltd Bangalore 30 Ethernet Adaptor 01 103 L LAN A LAN Local Area Network is a computer network characterized by the fact that a message sent from one LAN computer to another does not pass through a router Note that most LANs are located within a relatively small geographical area such as a building or campus M MAC address On a local area network LAN or other network the MAC Media Access Control address is your computer s unique hardware number On an Ethernet LAN it s the same as your Ethernet address When you re connected to the Internet from your computer or host as the Internet protocol thinks of it a correspondence table relates your IP address to your computer s physical MAC address on the LAN Modbus Modbus is an application layer messaging protocol positioned at level 7 of the OSI model that provides client server communication between devices connec
19. d to click on Update button in the same page and finally need to click on Save amp Reboot button from any page If u wants to load default values click on Load default from any page and then click on save amp Reboot Ethernet Adapter Configuration Windows Internet Explorer Colle e eD http 192 168 0 254 gt x B Google a pm gi Favorites Ethernet Adapter Configuration fi A E v Pagey Safety Toos v Ethernet Adapter Configuration i Password l Figure 9 EADO1 103 LOG IN page in browser Default login password is 77277 Whenever click on login it will show Home Page figure 10 This page displays EAD MAC Address Firmware version Product Model and Boot loader details Sparr Electronics Ltd Bangalore 9 Ethernet Adaptor 01 103 CG OW z E http 192 168 0 254 basic html de Favorites Ethernet Adapter Configuration gt Bl gt Pager Sefety Tooke y Ethernet Adapter Configuration SERIAL SERVER MAC Address 00 17 85 04 0B 81 Firmware version 2 11 Product Model EAD 01 102 Boot loader V2 0 Save amp Reboot Load Default 0 a m J gt Figure 10 EADO1 103 Home page in browser User can click on NETWORK or Next which is marked in figure 10 it will show network configuration page figure 11 Using this page we can configure IP address subnet mask gateway Port number N
20. e Serial Device b Rx and RX of our EAD unit should go to TX and TX of the Serial Device Select Option 3 for 4 wire operation in Serial Interface or Telnet mode Selection Sparr Electronics Ltd Bangalore 25 Ethernet Adaptor 01 103 14 Product Physical Details EAD01 103 MB Metal box Physical Dimensions Length 135mm Breadth 90mm Height 35mm Weight 750gm Power 230V AC for MB 5V 7V DC for MBX LED Indicator Red For power Yellow For connect Green TX LED Data is transmitting through serial Yellow RX LED Data is receiving from serial Sparr Electronics Ltd Bangalore 26 Ethernet Adaptor 01 103 EAD01 103 B Board level view te Se yy Sey eoon e o Thea TEEN tiiijiiji rT Stes Ek Le OLHO OO O Ole ivG ZB6E8O S xs GOOOOJfs gt w Physical Dimensions Length 79mm Breadth 50mm Height 23mm Weight 30gm H5 Troubleshooting This section describes commonly encountered problems associated symptoms and suggested troubleshooting actions A general piece of advice if you are unable to proceed any further despite the guidelines given through the manual contact your supplier or the company It would be extremely useful if you could capture the problem environment to the extend possible in terms of detailed description of the problem This will assist in a quick response to your problem However there is a rare chance that you
21. etwork Interface DHCP and transport protocol All these parameters are explained in Section 7 1 bai tS e eS bttp 192 168 0 254 network html Howe e fig Favorites Ethernet Adapter Configuration amp E db v Pager Safety Took y a Ethernet Adapter Configuration HOME E seria gt server os IP Address 192 168 000 254 Subnet Mask 255 1255 255 000 Gateway 0o00 6 000 000 000 DNS IP Address 000 000 000 000 Port Number 7727 Network Interface 100 MBps Full Duplex v DHCP Disable v Transport Protocol TCP Wpdate Save amp Reboot Load Defaut_ nm al gt Figure 11 EADO1 103 NETWORK configuration page in browser Sparr Electronics Ltd Bangalore 10 Ethernet Adaptor 01 103 Whenever click on SERIAL or Next which is marked in figure 11 it will display serial configuration page figure 12 using this we can configure Baud rate Data bits Parity stop bits flow control Serial I F Mode Character wait time out Inter character delay connection status reporting and XON XOFF pass through All these parameters are explained in Section 7 2 Ethernet Adapter Configuration Windows Internet Explorer GO http 192 168 0 254 serial html gt 4 x 9 Googie sly Favorites Ethernet Adapter Configuration A GB Gl wb Pagew Safetyy Toos v Ethernet Adapter Configuration q HOME newor
22. gned to your EADO1 103 for example 192 168 0 254 The reserved Port number in EAD for configuration through Telnet is 7353 Click on Connect and enter the Password when prompted Default password is 77277 Change the parameters as per your choice For detailed description on parameters of EAD see later section Note If you want to program through the Telnet then the Port number should always be 7353 The telnet command and options screen will look same under Windows 2000 and XP where you will have to use gt open 192 168 0 254 7353 after issuing Telnet command in the Run 5 3 Auto IP Programming If the user knows only the MAC address of the EAD and doesn t know the IP address then you can program it by adding arp Address resolution Protocol entry in his Computer and then connect through telnet using that IP and port number 7353 For adding the arp entry go to the DOS or Command prompt in your PC and enter the IP and MAC address as below C gt arp s IP address MAC Address For example eS CA WINNT system32 cmd exe Microsoft Windows 2666 Version 5 00 2195 C gt Copyright 1985 2666 Microsoft Corp C gt arp 192 168 080 254 66 17 85 64 66 1 CiN Figure 8 Auto IP Programming using arp Once the Arp entry is added try to ping the EAD using the command Ping IP address l 102 and ensure the ping response is successful You can now program the EAD through Telnet program
23. ions If you are not familiar with these concepts please refer to the standards or the documentation on each subject 1 2 Network Protocol The EADO1 103 uses IP protocol for network communications For network connections to the Serial port TCP UDP ICMP MAC DHCP and Telnet protocols are used 1 2 1 Ethernet Address or MAC Address The Ethernet adaptors have what is known as Hardware address or MAC address It has its own addressing scheme based on a unique six byte address This is generally called Media Access and Control MAC address One example of Ethernet Address is given below 00 17 85 01 36 0C or 00 17 85 01 36 0C Sparr Electronics Ltd Bangalore 1 Ethernet Adaptor 01 103 1 2 2 Internet Protocol IP Address To identify an individual computer device on the IP network the device must have a unique IP address in a Network The current version of Internet Protocol uses a four byte number expressed in dotted decimal notation Sample IP Address 192 168 0 250 1 2 3 Port Number Every TCP connection is established using a destination IP address and a Port number For example Telnet application commonly uses port number 23 of contacted IP number The EAD s Serial channel port can be associated with a specific TCP or UDP Port number E g Port number 7727 as source port number 2 EAD Kit Contains 1 Ethernet Adaptor 2 User Guide 3 Instructions Pin out diagram Based on Model
24. is Enable 7 3 8 Number of Characters in a Packet This option allows user to set the number of characters EAD should collect from Serial Port and then Packetizes to send to Server This is useful in situation where there is a set string of characters arrive from Serial port regularly for sending to Server The Default value is 254 This works in conjunction with the option of Pack Data when it is enabled It will allow number of characters in a packet range must be 1 to 254 7 3 9 Connection Inactivity Timeout Use this parameter to set inactivity time out The connection is dropped if there is no activity on the serial or LAN side after the set time expires The range of selection is from 01 to 65535 Seconds Default 300 Three hundred Seconds 7 3 10 Disconnect Active Connection on Data When EAD is connected to the remote server then user can disconnect the EAD TCP connection by sending the Disconnect character programmed from the Serial Port Disconnect character should be in HEX from 00 FE FF is not allowed Maximum 6 hex characters are allowed Example ALEFAD1123BD The default setup is 000000000000 which is for Disable Note 1 This is operational only when EAD makes outgoing connection to the Server 2 Do not use 00 as character in the string 7 3 11 Disconnect Active Connection on DSR When EAD is connected to the remote server then user can disconnect the EAD TCP connection by sending the DSR Data Set Ready
25. ishes connection with the Remote Server Machine in Auto Mode or based on number of Characters the user can be intimated with a connect Message This reporting of connection status can be Enabled or Disabled Default Disabled When Enabled with Option 1 CONNECTED message is displayed when socket connection is successful in port 7727 and DISCONNECTED message when the connection drops The Status reporting does not happen when there is Passive or Connection from Server takes place 7 2 8 XON XOFF Pass through XON XOFF pass through when is enable we can send the data to server Default Setting is Disable 7 2 9 Exit Use this option to exit and come back to the previous selection menu Sparr Electronics Ltd Bangalore 16 Ethernet Adaptor 01 103 7 3 Server Configuration Under Server Configuration various parameters required for EAD to connect to Server are provided and the available options are described below 7 3 1 IP Filtering This innovative and useful option is available under Server Configuration The main purpose of the same is ensure that only the relevant or select computers in the Network connects or communicates to the EAD and prevents all other computers in the Network interfering or intruding in its operation There are entries for 5 IP numbers under this menu When all of them are set to 0 0 0 0 the IP Filtering option is Disabled Default Entry of the IP number or numbers in this option enables this Feature
26. k SERA server gt Baud Rate 9600 Data bits 8 v Parity Stop bits Flow control Serial I F Mode Character wait time out 0 Between 0 to 254 msec Inter character delay 0 Between 0 to 254 msec Connection status reporting Disable f XON XOFF pass through Disable f Prev Update Save amp Reboot I Load Default Cance Nex m Figure 12 EAD01 103 SERIAL configuration page in browser Click on SERVER or Next which is marked in figure 12 to view the server configuration page figure 13 This page is used to configure the server parameters IP Filtering start Mode Accept incoming connection Remote IP address Remote Port Number Send CR with LF Accept serial data when not connoted No of characters in packet connection inactive timeout Disconnect active connection on data Disconnect active connection on DSR DTR active on connect only Defeat long ACK Restart on loss of link Telnet IAC and packet data All these parameters are explained in Section 7 3 Sparr Electronics Ltd Bangalore 11 Ethernet Adaptor 01 103 a a E http 192 168 0 254 server html we iy Favorites Ethernet Adapter Configuration m a hA 7 v Pagev Safetyy Toolsv Ethernet Adapter Configuration IP Filtering 000 000 000 000 ooo ooo 000 000 Start mode Auto Start bal Accept incoming connection Enable f Remote IP address 000 6 000 000 0
27. lex mode of EAD Set the correct Link speed with option Auto Negotiation IOOMBps 1OMBps and duplex modes Half Duplex Full duplex Default setting is 1OOMBps 7 1 8 DHCP If this option is enabled and a DHCP server exists on the network it provides the unit with an IP address gateway address and subnet mask when the unit boots up Default setting is Disable 7 2 Serial Configuration This section helps in configuring the Serial port parameters of the EAD The parameters are described below 7 2 1 Baud rate The EAD is normally attached to a Serial device which needs to be controlled from LAN The speed or baud rate selected should match between Serial Device and the setting in the EAD for proper Serial data transfer Set the correct baud rate with option a to j for valid baud rates of 300 600 1200 2400 4800 9600 Default 19200 38400 57600 and 115200 bps 7 2 2 Data Parameter There are Ten options available for Data parameters settings with choice from a to j for various Data bits Parity and Stop bit selections N No Parity 8 Data bit 1 Stop bit default E Even Parity 7 Data bit 1 Stop bit O Odd Parity 7 Data Bits 1 Stop Bit E Even Parity 8 Data bit 1 Stop bit O Odd Parity 8 Data bit 1 Stop bit N No Parity 8 Data bit 2 Stop bit E Even Parity 7 Data bit 2 Stop bits O Odd Parity 7 Data bit 2 Stop bits M Mark Parity 8 Data bit 1 Stop bi
28. ndows and Linux Many network devices such as serial device servers and routers have a built in Telnet console that allows users to configure the device by the Telnet utility U UDP User Datagram Protocol UDP is a connectionless protocol that like TCP runs on top of IP networks Unlike TCP IP UDP IP provides very few error recovery services offering instead a direct way to send and receive datagrams over an IP network It s used primarily for broadcasting messages over a network W Winsock Winsock is the standard Windows API utility that uses TCP IP protocol to connect other Network devices Sparr Electronics Ltd Bangalore 33 Contact Questions Call Sparr Electronics Technical Support at 91 80 23602836 Head Office Sparr Electronics Ltd No 43 YMS Complex HMT Main Road Mathikere Bangalore 560 054 INDIA Phone 91 80 2360 2836 91 80 2360 6308 Fax 91 80 2360 8346 Branch Offices Sparr Electronics Limited 203 IInd Floor Rajhans Sunder Nagar Kalina Santacruz E Mumbai 400 098 INDIA Phone 91 22 26655375 Sparr Electronics Ltd Old No 39 New No 4 I Floor IV Main Road Kasturiba Nagar Adayar Chennai 600020 INDIA Phone 91 44 24425073 Web and Emails WEB www sparrl com For Product Information info sparrl com For Support support sparrl com For Sales sales sparrl com
29. parr EAD Configuration F W Version 2 11 1B13D MAC Adress 00 17 85 04 0B 81 a gt Network Configuration b gt Serial Configuration c gt Server Configuration d gt Load Factory Defaults e gt Change Configuration Password f gt Save and Exit g gt Exit h gt To Upload New Firmware 1 gt Enable Boot Messages 0 Disable 1 Enable Enter Selection m 4 w p Connected 00 01 36 Auto detect 96008 N 1 CAPS NUM Figure 6 Programming through Hyper Terminal 4 Enter the choice for example a for entering the Network configuration mode and configure the EAD Note that the Options Choices are Case Sensitive Refer the Section 8 for various options and the functionality 5 2 Programming through Telnet EAD can also be programmed through Telnet program available in Windows Open the Telnet program by Typing Telnet in Start gt Run Open and select Connect as Remote System from the Connect menu Please see the screen shot below off C WINNT system32 Telnet exe Microsoft lt R gt Windows 2666 lt TM gt Version 5 08 lt Build PEELS Welcome to Microsoft Telnet Client Telnet Client Build 5 66 99206 1 E Escape Character is CTRL t Microsoft Telnet gt open 192 168 090 254 7353 Figure 7 Connect through Telnet Sparr Electronics Ltd Bangalore 7 Ethernet Adaptor 01 103 Enter the correct Host Name IP Address and the Port number Host Name is the IP address you programmed and assi
30. roviding address conversion in both directions Sparr Electronics Ltd Bangalore 28 Ethernet Adaptor 01 103 B Baud rate Baud was the prevalent measure for data transmission speed until replaced by a more accurate term bps bits per second One baud is one electronic state change per second Since a single state change can involve more than a single bit of data the bps unit of measurement has replaced it as a better expression of data transmission speed The measure was named after a French engineer Jean Maurice Emile Baudot It was first used to measure the speed of telegraph transmissions C Client program A client program is a type of computer program that actively requests service from a server program which often resides on another computer COM port A COM port is serial communications port RS 232 interfaced on a Windows based PC Most PCs come with two built in COM ports although the number of ports can be extended into the hundreds by installing either multiport serial boards or network based serial device servers D Data stream transmission Data stream transmission refers to a series of data transmitted continuously without interruption DHCP The Dynamic Host Configuration Protocol DHCP is an Internet protocol for automating the configuration of computers that use TCP IP DHCP can be used to automatically assign IP addresses to deliver TCP IP stack configuration parameters such as the subne
31. s and the port number according to the time programmed Waiting time rage from 1 999 seconds The Default time is 60 Seconds It is not possible to set waiting time through web browser Manual Mode In the manual mode TCP connection can be made by entering command from Terminal or Serial port as Sparr Electronics Ltd Bangalore 17 Ethernet Adaptor 01 103 C IP Address Port Number No space between C and IP address Example C192 168 0 250 25 Note The C should be in Capital only as it is Case Sensitive Input Character Mode This Mode is selected when you require EAD to connect automatically to Server when there is character from the Serial Port For the input character mode automatic connection Remote IP address and the TCP port number parameters are required and should be programmed If the Input character mode is selected here you can program the number of characters given as input all parameters must be provided i e Remote IP Remote port number Start mode 2 It will connect to the programmed IP address and the port number when unit receives the number of characters equal to the one you programmed It will allow number of input characters from 1 to 999 The Default number of character is 1 Default setting is Auto But will behave as manual if the Remote IP and port numbers are set to 0 Section 8 3 4 and 8 3 5 It is not possible to set number of characters through web browser 7 3 3 Accept Incoming
32. st and risk and shortens development time to add networking capability as a standard feature EADO1 103 Operation Under SNMP Protocol Simple Network Management Protocol SNMP is the protocol responsible for allowing network management stations on a TCP IP internet work to perform management tasks with managed devices The core of the protocol consists of a set of protocol operations that allow management information to be exchanged between SNMP agents and managers Ethernet Adapter EAD01 103 supports simple network management protocol based communication SNMP enabled EAD can be integrated with devices like UPS and can be used with SNMP managers Using SNMP EAD SNMP Manager Queries are converted in to device protocol and vice versa Basically serial configuration having eight parameters those are explained in section 7 2 If EADO1 103 is using SNMP 3 extra parameters will come under serial configuration The available options are described below Command Termination We must set command termination as Carriage Return CR when SNMP Protocol is using Sparr Electronics Ltd Bangalore 23 12 Ethernet Adaptor 01 103 Response Termination We must set Response termination as Carriage Return CR when SNMP Protocol is using Delay between the commands We can set delay between commands 500ms to 65535ms EADO1 103 Data Backup The EAD 01 103 connects serial devices to Ethernet network using the IP protocol with Data Backup The E
33. t and S Space Parity 8 Data bit 1 Stop bit Sparr Electronics Ltd Bangalore 15 Ethernet Adaptor 01 103 7 2 3 Flow Control Flow control is required for handshake with the Serial device for stopping serial data input output to avoid character loss Supported options are NONE for No Flow control XON XOFF for Software Flow control and RTS CTS for Hardware Flow control Default None It is highly recommended to use Flow control for higher Serial speed applications 7 2 4 Serial I F Mode EAD supports RS232 Default RS485 2 Wire and RS422 4 Wire Serial port Interface characteristics based on the option and need of the customer The same is enabled in the option when the Hardware is supported in the unit 7 2 5 Character Wait Timeout Character wait time out defines how long the EAD should wait before sending accumulated serial characters to network Serial data arrives at EAD which is packetized and sent through the LAN after this period Set this to smaller value for immediate transfer Default is 0 Milliseconds You can set this up to 254 milliseconds 7 2 6 Inter Character Delay Inter Character delay is the delay between two characters from the EAD to the serial port device The range is from 00 to maximum of 254msec Default 0 milliseconds Higher Inter Character delay is selected if the device can receive the serial character only with delay between characters 7 2 7 Connection Status Reporting Once EAD establ
34. t mask and default router and to provide other configuration information such as the addresses for printer time and news servers DNS The Domain Name System DNS is an Internet directory service DNS is how domain names are translated into IP addresses and DNS also controls email delivery Sparr Electronics Ltd Bangalore 29 Ethernet Adaptor 01 103 E Ethernet Ethernet is a local area network architecture developed by Xerox DEC and Intel in 1976 It operates using a shared bus or star topology and supports data transfer rates of 10 Mbps 100Mbps and even 1000 Mbps formats Ethernet frame An Ethernet frame is a packet of data bits sent from one device to another over an Ethernet network F Firmware Firmware is programming that is inserted into programmable read only memory programmable ROM thus becoming a permanent part of a computing device Firmware is created and tested like software using microcode simulation When ready it can be distributed like other software and using a special user interface installed in the programmable read only memory by the user Firmware is sometimes distributed for printers modems and other computer devices H HOST A Host is a computer such as a PC that is connected to a network Each host is assigned its own unique IP address HTML HTML Hyper Text Markup Language is the computer language used to produce text files that contain typesetting commands that
35. ted on different types of buses or networks Modbus is a request reply protocol and offers services specified by function codes Modbus function codes are elements of Modbus request reply PDUs Protocol Data Unit N Netmask A netmask is a 32 bit number that is used to determine the network scope of a computer s IP address The most commonly used netmasks are 255 0 0 0 for Class A networks 255 255 0 0 for Class B networks and 255 255 255 0 belongs to a class C network in which all computers on the network have IP address of the form 192 168 254 xxx P PPP The Point to Point Protocol is designed for simple links which transport packets between two peers These links provide full duplex simultaneous bi directional operation and are assumed to deliver packets in order It is intended that PPP provide a common solution for easy connection of a wide variety of hosts bridges and routers R Sparr Electronics Ltd Bangalore 31 Ethernet Adaptor 01 103 RS 232 RS 232 is a standard interface for connecting serial devices Many modems display screens and printers are designed to operate via an RS 232 port S Serial communications Serial communications refers to the transmission of data bit by bit Serial device server A serial device server is a standalone device that has at least one Ethernet port and one or more serial ports Serial device servers are equipped with an embedded network operating system and allo
36. the IP number to 0 0 0 0 if you wish the EAD to acquire IP number from DHCP Server in your Network automatically 7 1 2 Netmask A netmask defines the number of bits taken from the IP address that are assigned for the host section Default is 255 255 255 0 Example 255 255 255 0 7 1 3 Gateway The Gateway or Router allows communication to other LAN segments The gateway address should be the IP address of the router connected to the same LAN segment The gateway address must be within the local network address range There is no default value Example 192 168 0 XXX 7 1 4 Port Number This setting represents the port number for TCP connections to the serial device Once the IP number is selected and the port number is opened then the serial device becomes transparent for data Transfer Default value is 7727 You can select values from 1 to 65535 based on your application TCP socket program The suggested value for this is from 3000 upwards Sparr Electronics Ltd Bangalore 14 Ethernet Adaptor 01 103 7 1 5 EXIT Use this option to exit and come back to the previous selection menu 7 1 6 Transport Protocol 0 TCP 1 UDP This setup makes EAD to Transmit and Receive serial data to and from LAN in appropriate Protocol format selected TCP is chosen for directed data communication and UDP is selected for Broadcast applications Default setting is TCP 7 1 7 Network Interface This setting represents the Link speed and Dup
37. through serial CONNECT LED will be off when LOAD FACTORY DEFAULT switch is pressed continuously for 10 seconds Yellow LED Blinking when Ethernet LAN not connected 3 4 Power Input There is an Input power socket in the EADO1 MBX model which can take in 9V AC 300 mA Power where you can plug in the Power adaptor supplied along with the unit The MB model has In built Power supply with a 2 Pin Power CHORD for plugging to Mains power socket The Board level product takes in 5 V to 24V DC 4 Connection and Pinout Diagrams Figure 1 Connection diagram Sparr Electronics Ltd Bangalore 3 Ethernet Adaptor 01 103 9 Pin Male Connector Figure 2 EAD 01 103 MB Model 9 pin Male Pin out Diagram 345678 RJ 45 Ethernet connector 12 Figure 3 RJ 45 Jack Sparr Electronics Ltd Bangalore 4 EAD01 103 Connections JP 1 gt RS 232 1 RTS 2 DIR 3 TxD 4 Vee 5 7Y DC 5 GHD 6 RxD 7 4 DSR 8 4 cTS Ethernet Adaptor 01 103 JP3 gt RS 485 422 1 2 3 4 Rx Rx Tx Tx Figure 4 EAD 01 103 B Berg Pin out Diagram a O Oye al O Ole n O 1 2 3 4 5 6 7 8 PinNo Colorofwire Signal Name Berg pin Female with wire Figure 5 EAD 01 103B Berg Pin out Diagram Sparr Electronics Ltd Bangalore Ethernet Adaptor 01 103 9 Programming through Hyper Terminal Telnet and Web Browser You can configure the EADO1
38. timeout 00 254 msec Inter Character delay 00 254 msec Connection status reporting 0 Disable 1 Enable XON XOFF pass through 0 Disable 1 Enable Exit Under the Server configuration menu there are fifteen parameters a b c d e f g h i j k 1 m n IP Filtering Start mode Accept incoming connection 0 Disable 1 Enable Remote IP address Remote Port number Send CR with LF 0 Disable 1 Enable Accept serial data when not connected 0 Disable 1 Enable No Of characters in a Packet 1 254 Connection Inactivity Timeout 1 65534 Sec 65535 to Disable Disconnect Active connection on Data Disconnect Active connection on DSR 0 Disable 1 Enable Packet Data 0 Disable 1 Enable DTR active on Connect Only 0 Disable 1 Enable Exit Sparr Electronics Ltd Bangalore 13 Ethernet Adaptor 01 103 o Defeat Long Ack 0 Disable 1 Enable p Restart on loss of link 0 Disable 1 Enable q Telnet IAC 0 Disable 1 Enable r Telnet IAC Terminal Type 1 Parameter Description 7 1 Network Configuration Under the Network configuration there are eight parameters which are programmable The parameters are explained below 7 1 1 IP Address The IP address must be set to a unique value in your network See section 1 2 2 The EAD cannot connect to the network if the assigned IP address is already in use by any another device Default is 192 168 0 254 Example 192 168 0 250 Please do set
39. w computers to access serial devices over a network Simple network management protocol The Simple Network Management Protocol SNMP forms part of the internet protocol suite as defined by the Internet Engineering Task Force IETF SNMP is used in network management systems to monitor network attached devices for conditions that warrant administrative attention It consists of a set of standards for network management including an Application Layer protocol a database schema and a set of data objects Socket programming Socket programming refers to scripts that execute functions which read data to and from socket T TCP IP The TCP IP protocol suite refers to the family of network protocols used by most Ethernet networks and by the Internet to connect hosts TCP IP in which TCP stands for Transmission Control Protocol and IP stands for Internet Protocol is a standard for transmitting data over networks TCP port A TCP port is similar to a native COM port which extends from the Ethernet TCP socket A TCP socket is a program that can send and receive TCP IP messages by opening a socket and then reading and writing data to and from the socket Sparr Electronics Ltd Bangalore 32 Ethernet Adaptor 01 103 Telnet Telnet is a widely used protocol that establishes a network connection with a networked device Many standard software utilities are based on the Telnet protocol such as Telnet system utility name under Wi
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