Docklight Pro Monitor User Manual 10/2015
Contents
1. The EIA Standard RS422 A Electrical characteristics of balanced voltage digital interface circuits defines the characteristics of an RS422 interface Transmitter and receiver characteristics according to RS422 A Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Glossary Terms Used Voltage Vas Voltage Vas Mark or logical 1 Space or logical 0 Undefined 2V to 2V 200mV to 200mV Permitted Common Mode Voltage Vom mean voltage of A and B terminals with reference to signal ground 7V to 7V 8 17 RS485 The RS485 standard defines a balanced two wire transmission line which may be shared as a bus line by up to 32 driver receiver pairs Many characteristics of the transmitters and receivers are the same as RS422 The main differences between RS422 and RS485 are e Two wire half duplex transmission instead of four wire transmission Balanced line drivers with tristate capability The RS485 line driver has an additional enable signal which is used to connect and disconnect the driver to its output terminal The term tristate refers to the three different states possible at the output terminal mark logical 1 space logical 0 or disconnected Extended Common Mode Voltage Vem range from 7V to 12V The EIA Standard RS485 Standard for electrical characteristics of generators and receivers for use in balanced digital multipoint systems defines the characteristics of an R2. lt Docklight Pro Monitor Docklight Pro Monitor User Manual 10 2015 Docklight Pro Monitor Copyright 2015 Flachmann und Heggelbacher GbR Table of Contents 1 Copyright 4 2 Welcome to Docklight Pro Monitor 5 2 1 Docklight Pro Monitor Overview sccccssssccecssssscecssssseecssssscccesssssceesecssceecesssseseesess 6 2 2 Typical Hardware Setups ester 00 0 ee 6 2 3 System Requirements i ui ees ss Ed Se Ge en De se ea se ee Ge ge ed ee ed AE 7 3 User Interface 8 3 1 Main VOW eier ee 9 3 2 Clipboard Copy amp Paste nn ae 10 4 Working with Docklight Pro Monitor 11 4 1 Monitoring RS232 Communication sesse ese Ee EE DE EE Ge GE RE EE ER Ge Ge EE EE 12 4 2 Monitoring RS422 485 Communication ees sesse ee RE EE Ee AE EE EE ER Ge Ge EE EE ES 13 4 3 Project Files Saving and Loading Communication Settings sesse ee cesses Ge 14 5 Reference 15 5 1 METER EE RE RE E ER EE EE 16 5 2 TON DAN EE N EA Ad OE ER EE EE 16 5 3 Content Filter van nee 16 5 4 Dialog Channel Configuration essuussssnnnonsennnnsnnnnnnnsnnnnnnnnnnnnnnnnnnnnnnnnnsnnnnnnnsnnnnnnnns 17 5 5 Dialog OPtiONS ana 18 6 Support 20 6 1 Web Support and Troubleshooting sss sss ss ss sss sss se sss sees esse ee esse eenn nnes 21 6 2 E Mail SUpport os eie eie ee eie la 21 7 Appendix 22 7 1 ASCII Character Set Tables u nenne 23 7 2 RS 232 Connectors PINOUT nn 26 7 3 Standard RS232 Cables iis Ge ER ks ko ee GR N GE N Be ee Re nne 26 7 4
3. e mail support to our registered customers We will contact you as soon as possible to find a solution to your problem Send your support request to docklight fuh edv de Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Appendix Appendix 7 Appendix 7 1 ASCII Character Set Tables Control Characters Char 7 16 SYN__ Synchronous de 17 EB _ lEndoftransmissionbck_ 27T 18 can Cancel o 9 pD as k lk oa oo os os oo OB OD ir uoo i2 18 ia 15 1 2 3 4 5 7 A C E F 0 1 2 3 6 ja fey ty k l k On l E CO pe OPEIS 1 1 1 1 1 l k o N 16 17 18 19 0 1 2 3 4 5 2 2 2 2 2 2 i Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Copyright 2015 Flachmann und Heggelbacher GbR E 2 2 hm 8 o 5 x Qe lt 0 o hea o hm O O D E E a Docklight Pro Monitor User Manual 10 2015 Q GL lt x Q GL lt x Copyright 2015 Flachmann und Heggelbacher GbR Docklight Pro Monitor User Manual 10 2015 Appendix 26 7 2 7 3 RS232 Connectors Pinout The most common connector for RS232 is the 9 pole SUB D9 EIA TIA 574 standard introduced by IBM View Looking into the male connector Pinout From a DTE perspective the DTE transmits data on the TX Transmit Data line
4. information in the communication window For protocols that do consider handshake signals states choosing Status Lines Off will give you a much better overview on the actual information 16 34 06 090 App CFG Communication started Test PC1 VTPO Test PEZ VTP1 9600 8 None 1 16 34 15 463 VIPO 25 2O 20 2D OF 20 50 69 6E 67 16 34 15 491 VIE1 6F 2D 2D 2D 20 20 50 SF 6E G7 16 34 30 320 App CFG Communication stopped 5 Click Options to control how time stamps and control characters are displayed 6 The logged information can be copied to the clipboard using Ctrl A Select All and Ctrl C Copy clipboard operations 4 2 Monitoring RS422 485 Communication EN Hardware Requirements A Docklight Tap 485 device to tap serial data and status lines from both devices The PC running Docklight Pro Monitor must have the latest Docklight Tap Pro USB drivers installed see FTDI drivers Device 1 and Device 2 in operational state Correct wiring configuration see Tap 485 RS422 RS485 pin assignment Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Working with Docklight Pro Monitor RS 422 485 Device 1 RS 422 485 Device 2 Docklight Pro Monitor fig Monitoring two RS 422 RS485 devices Monitoring the communication NOTE For RS422 RS485 Channel Configuration setting Tap Signal Level RS422 485
5. must be used Monitoring of RS422 or RS485 communication works same way as described in the chapter Monitoring RS232 Communication 4 3 Project Files Saving and Loading Communication Settings SS Docklight Pro Monitor remembers the channel configuration and display settings used after closing and re opening the application In addition you can save these settings in a Docklight Pro Monitor project file dockzip using the File menu Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Reference Reference 5 Reference 5 1 Menu TE as File New Project Close the current Docklight Pro Monitor project and create a new one with default communication settings 9600 baud 8 start bits 1 stop bit No Parity Open Project Loads communication settings from a Docklight Pro Monitor project dockzip file Save Project Save Project As Save the current communication settings into a Docklight Pro Monitor project dockzip file Exit Quit Docklight Pro Monitor Channels Configure Displays the Channel configuration dialog 5 2 Toolbar Start Start logging the Tap data O Stop Stop logging C Clear Delete the contents of the communication window Configure the appearance of the logging information Options o Date format P o Time format o Display of control characters ASCII 5 3 Content Filter The filters allow to show or hide information in the commun
6. that terminal is ready for communication and enables modem to communicate Refer to RS232 Connector Pinout for pin assignment Docklight Pro Monitor displays handshake information in Status Line Messages Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging 8 9 Flow Control Flow control is a mechanism for regulation of transmission The DIE and DCE must agree on the flow control mechanism used for communication session There are two types of flow control Hardware Flow Control Uses voltage signals on the RS232 status lines RTS DTR set by DIE and CTS DSR set by DCE to control transmission and reception of data See also RS232 pinout Docklight Pro Monitor allows you to check all status line changes with milliseconds accuracy Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging Software Flow Control Uses specific ASCII control characters XON XOFF to control data transmission Software flow control requires text based communication data or other data not containing any XON or XOFF characters Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Glossary Terms Used 8 10 FTDI device drivers FTDI device drivers are required for using Docklight Tap Pro and Docklight Tap 485 On Windows 10 8 7 and Windows Vista the driver installation is automated As soon as Docklight Tap Pro is connected Windows Update will automa
7. while the DCE receives data on this line Standard RS232 Cables RS232 Connections When connecting two serial devices different cable types must be used depending on serial device characteristics and type of communication used Overview of RS232 SUB D9 interconnections Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Appendix Serial Device 1 Serial Device 2 Flow Control Recommended SUB D9 Cable handshaking no handshake simple null modem cable null modem cable with full handshaking simple null modem cable but with SUB D9 male connectors on both ends Simple Three Line Cable Area of Application DIE DCE Communication where no additional handshake signals are used SUB D9 n een SUB D9 female POA groun male fig SUB D9 Simple Three Line Cable SUB D9 1 1 Cable Fully Assigned Area of Application DTE DCE Communication with hardware flow control using additional handshake signals SUB D9 SUB D9 is Protective shielding ground male female 1 fig SUB D9 1 1 Cable fully assigned Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Appendix SUB D9 Null Modem Cable Without Handshaking Area of Application DTE DTE Communication where no additional handshake signals are used SUB D9 SUB D9 female female fig SUB D9 Simple Null Modem Cable Without Handshak ing
8. 59 99 1 10 sec resolution format 23 59 59 9 D 1 sec resolution format 23 59 59 OK Cancel fig Options dialog Date Timestamp Control Characters Non printable control characters ASCII code 0 31 see ASCII Character Set Tables are usually invisible or undefined character in ASCII mode To visualize these characters in ASCII mode you can choose following options e Activate the character description e In addition you can suppress the original ASCIl interpretation Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Reference E Options Date Timestamp Control Characters Control Characters ASCII 0 31 Add the character description in the ASCI communication window e g lt STX gt lt ETX gt Suppress original control character except for lt CR gt lt LF gt line breaks OK Cancel fig Options dialog Control characters Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR 6 2 Support Web Support and Troubleshooting EE ee EE EE ee eg For up to date FAQs and troubleshooting information see our online support pages available at http docklight de support NOTE Docklight Pro Monitor is a new member of our Docklight family so if you cannot find specific information on our website please do not hesitate to contact us directly E Mail Support LSE ESS TFT We provide individual
9. 6 34 23 598 Status Lines RTS 0 DTR 0 CTS 0 DSR 0 DCD 0 RI 0 16 34 23 598 App CFG Communication stopped Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Working with Docklight Pro Monitor Example communication window ASCII 3 Use the Representation buttons ASCII HEX Decimal or Binary to change the representation of the displayed RX data For example change the representation to HEX 16 34 06 090 App CFG Communication started Test PCl VTPO Test PC2 VTP1 9600 8 None 1 16 34 06 138 Status Lines RTS 0 DTR 0 CTS 0 DSR 0 DCD 0 RI 0 16 34 10 207 Status Lines RTS 0 DTR 0 CTS 1 DSR 0 DCD 0 RI 16 34 10 207 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI 16 34 15 412 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI L627 34215 412 Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI L6s34215 463 VIPO 20 2D 20 2D 6F 20 50 69 GE 67 6 34515 491 VIP1 6F 2D 2D 2D 2D 20 50 6F 6E 67 16 34 19 258 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI 16 34 19 259 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI 16 34 23 598 Status Lines RTS 0 DTR 0 CTS 1 DSR 0 DCD 0 RI 1 16 34 23 598 Status Lines RTS 0 DTR 0 CTS 0 DSR 0 DCD 0 RI 0 16 34 30 320 App CFG Communication stopped Example communication window HEX 4 Use the Content Filter settings to show or hide
10. Docklight Tap Pre aan anne 29 7 5 Docklight Tap AAS isi se ni ces Dk ep Re Wes pk N Wi ed EG eg 30 8 Glossary Terms Used 32 8 1 Break State serien 33 82 Character einsehen 33 8 3 ECTS seen 33 8 4 DIE D DE EE N EN AE EE N 33 8 5 DEE a EE N EE EE N EN 33 Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Table of Contents 8 6 DER ein EE NE EE MA EE ENG 34 8 7 DIE ns een N EE Eee 34 8 8 DIR nie nee ee 34 8 9 Flow Control iss oen ke GE DA ge ee n ee ge Re Re de Ge ki 34 8 10 FIDI device TT anna 35 8 11 UN EE EN EE EE EE OE N EE EE EE 35 8 12 MODBUS ii eiers ek ee ee GE oe ad AE we Rep o SRE ee 35 8 13 Multidrop Bus MDB schen 35 8 14 RE EE EE AE N EE OE 35 8 15 DE FEE GE TE NE N HA AE RE EE EE NO EE EO EG 36 8 16 RSA22 AE EE EN N EE EE EE N NE N EE E 36 8 17 RS485 SE ME EE EE EE ARE OE EE 37 8 18 BIS sides ede es ee ke oo ee ol E E ve ee el AG 37 8 19 VART RE RE RE EE NE EE EE N N N AG 37 Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Copyright 1 Copyright Copyright 2015 Flachmann und Heggelbacher GbR All rights reserved No parts of this work may be reproduced in any form or by any means graphic electronic or mechanical including photocopying recording taping or information storage and retrieval systems without the written permission of the publisher Trademarks Products that are referred to in this document may be either tradema
11. FTDI drivers e Device 1 and Device 2 in operational state e Correct Cable configuration see Standard RS232 Cables 9000 RS232 Device 1 RS232 Device 2 Docklight Pro Monitor fig Monitoring two RS 232 devices Monitoring the communication 1 Configure the channels according to the communication settings of your device hardware To display the Channels Settings Dialog click on the button in the Channels section or choose menu Channels gt Configuration 2 Click Start to start the communication Select filter settings in the content section according to your needs Your communication window will contain information similar to this 16 34 06 090 App CFG Communication started Test PCl VTPO Test PC2 VTP1 9600 8 None 1 1634206138 Status Lines RTS 0 DTR 0 CTS 0 DSR 0 DCD O RI 0 16 34 10 207 Status Lines RTS 0 DTR 0 CTS 1 DSR 0 DCD 0 RI 16 34 10 207 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI 63415 4112 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI L6 34215 472 Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 16 34 15 463 VIPO saag Ping 16 34515 429I VIPL 0 Pong 16 34 19 258 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI 16 34 19 259 Status Lines RTS 0 DTR 0 CTS 1 DSR 1 DCD 0 RI 16 34 23 598 Status Lines RTS 0 DTR 0 CTS 1 DSR 0 DCD 0 RI 1 1
12. OTE The monitored data is stored in a ring buffer This means that when large amounts of data are monitored the oldest displayed data will be overwritten When this happens the status above the communication window will say ring buffer mode overwriting oldest data 3 2 Clipboard Copy amp Paste TS A SS A EEE SSS Saaz The current Docklight Pro Monitor software does not support logging to file but Windows clipboard operations are fully supported in the Communication Window To copy the complete monitoring data buffer contents not just the visible part use either the right mouse button to display context menu or keyboard shortcuts e Ctrl A Select All then e Ctrl C Copy All data is copied in plain text format colors and fonts are not preserved To paste the content to desired application Microsoft Notepad Word Excel use either the right mouse button to display context menu of this application or use keyboard shortcut e Ctrl V Paste Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Working with Docklight Pro Monitor Working with Docklight Pro Monitor Working with Docklight Pro Monitor 4 1 Monitoring RS232 Communication Hardware Requirements e A Docklight Tap Pro or Docklight Tap 485 device to tap serial data and status lines from both devices e The PC running Docklight Pro Monitor must have the latest Docklight Tap Pro USB drivers installed see
13. S485 system 8 18 RTS CZO Request to send is a control signal used for flow control A transmitter raises RTS line to enforce an interrupt on receiver side Raising and lowering of the RTS allows device drivers with hardware flow control to maintain a reliable data connection between transmitter and receiver Refer to RS232 Connector Pinout for pin assignment Docklight Pro Monitor logs this information in Status Line Messages Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging 8 19 UART Universal Asynchronous Receiver Transmitter The UART is the hardware component that performs main serial communications tasks e converting characters into a serial bit stream e adding start stop parity bits e checking for parity errors on receiver side e all tasks related to timing baud rates and synchronization Common UARTs are compatible with 16550A UART They include a 16 byte buffer for incoming data RX FiFo as well for outgoing data TX FiFo Usually these buffers can be disabled enabled using Windows Device Manager and opening the property page for the Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Glossary Terms Used appropriate COM port e g COM1 Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR
14. SUB D9 Null Modem Cable With Full Handshaking Area of Application DTE DTE Communication where also handshake signals are used SUB D9 SUB D9 female female Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Appendix 7 4 Docklight Tap Pro Docklight Tap Pro is an advanced high resolution monitoring solution for the USB port Please also see our product overview pages for more information about the Docklight Tap Pro SUB D9 female Receive Channel 1 Receive Channel 2 e g VTP O e g VTP 1 Mini USB 5 432 1 fig Docklight Tap Pro logic Pin No Signal Name Description DTEin out 1 DCD Data Carrier Detect input RX Receive Data 8 x Transmit Data Output Data Terminal Ready Joutput Signal Ground booo O Data Set Ready Input Request To Send Output Clear To Send input Input Ring Indicator Monitoring Data 300 bps to 921 6 kbs Rate Com Settings 7 8 bit data 1 2 stop bits Odd Even Mark Space Support No Parit Certifications RoHS REACH Operating 40 C to 85 C temperature Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Appendix 7 5 Docklight Tap 485 SSS SSS eS SSS Docklight Tap 485 is an advanced high resolution monitoring solution for RS232 RS422 and RS485 communications It is equipped with a nine pole screw terminal connector fo
15. he Docklight Tap Pro or Docklight Tap 485 hardware between your two PCs using a null modem cable This cable is required to crosslink the DTE and DCE lines for inter PC communication Connect the Tap hardware to a PC running Docklight Pro Monitor using the USB connection This can be one ofthe PCs used for communicating with the device Once the hardware has been connected you can start Monitoring Serial Communication Docklight Pro Monitor fig Monitoring two PCs null modem cable necessary 2 3 System Requirements Operating system e Windows 10 Windows 8 Windows 7 Windows Vista Windows XP Hardware requirements e Docklight Tap Pro or Docklight Tap 485 for high precision serial monitoring Additional cables may be required for connecting the equipment to be tested See the Appendix Standard RS232 Cables for a description of these cables Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR User Interface User Interface 3 User Interface 3 1 Main Window FH FE jee 1 Menu File Channels 2 Toolbar 3 Status 8 Communication Window 4 Representation 09 13 03 492 App CFG Communication started 5 Channels ee 6 Content 7 Format fig Main Window Layout 1 Menu bar Use the File menu to open or sawe a project containing communication settings Use the Channels menu to display the channel communicat
16. ication window You can toggle filters while the communication is running Content types include e Timestamp information A new time stamp is added for each change in data direction or with each communication event such as status line changes or configuration information e Configuration Info e g Communication started Communication stopped e Data The two communication data directions can also be filtered individually using the On Off switches in the Channels area Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Reference e Break State e Errors NOTE The communication data buffer and the accumulated communication data is not modified when changing content filter settings Only the communication window display changes 5 4 Dialog Channel Configuration L Configure your Docklight Tap Pro or Docklight Tap 485 serial communication parameters for your RS232 RS422 or RS485 monitoring To open the Channel Configuration dialog click either Edit in the Channels section or choose the menu Channels gt Configure Channel Configuration es Settings Tap Device First Found Ch 1 Alias Test PCL Ch 2 Alias Test PC2 Baud Rate 115200 v Data Bits 8 v Parity None Stop Bits 1 z Tap Signal Level RS232 TTL v OK Cancel fig Channel configuration dialog Ch 1 Alias Ch 2 Alias Enter alternative channel names for your data logging to replace the default
17. ion settings dialog See Dialog Channel settings and Project Files Saving and Loading Communication Data 2 Toolbar Common Docklight Pro Monitor functions Start or Stop communication Clear the communication data display Options or Help to access this manual 3 Status Displays the current status of communication with the Tap Pro device Idle Running Error etc 4 Representation Possibility to control the format of displayed data ASCII Hex Decimal or Binary 5 Channels Shows the current Docklight Tap Pro or Docklight Tap 485 device settings To change the settings click on the buttons or by double clicking on any of the displayed settings See Dialog Channel settings 6 Content filtering Show or hide different types of content in the communication window Content filters can be modified while communication is running See Main window Content filter 7 Format Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR User Interface Configure the timestamp format and the appearance of control characters inside the communication window Formats can be modified while the communication is running See Dialog Options 8 Communication Window Displays all communication data and serial line events monitored by Docklight Tap Pro or Docklight Tap 485 Communication data can be copied to clipboard by selecting text with the mouse cursor See chapter Clipboard for details N
18. nd electrical characteristics of the interface RS232 uses serial bit streams transmitted at a predefined baud rate The information is separated into characters of 5 to 8 bits lengths Additional start and stop bits are used for synchronization A parity bit may be included to provide a simple error detection mechanism The electrical interface includes unbalanced line drivers i e all signals are represented by a voltage with reference to a common signal ground RS232 defines two states for the data signals mark state or logical 1 and space state or logical 0 The range of voltages for representing these states is specified as follows Signal State Transmitter Voltage Receiver Voltage Range Range Mark logical 1 15V to 5V 25V to 3V Space logical 0 5V to 15V 3V to 25V Undefined 5V to 5V 3V to 3V The physical characteristics of the RS232 standard are described in the section RS232 Connectors Pinout 8 16 RS422 An RS422 communication link is a four wire link with balanced line drivers In a balanced differential system one signal is transmitted using two wires A and B The signal state is represented by the voltage across the two wires Although a common signal ground connection is necessary it is not used to determine the signal state at the receiver This results in a high immunity against EMI electromagnetic interference and allows cable lengths of over 1000m depending on the cable type and baud rate
19. r the various RS232 422 485 wiring options Docklight Tap 485 has the same performance characteristics as the Docklight Tap Pro but includes RS422 485 differential line receivers or A B Please also see our product overview pages for more information about the Docklight Tap Pro and Docklight Tap RS485 98 765 43 2 1 including MC 1 5 9 ST 3 81 sen TypeA Phoenix connector yP fig Docklight Tap 485 Tap Signal Level RS232 TTL Pin No Signal Name Description 2 DTEin out 1 DCD DataCarierDeteet input 2 RY Receive Data Input 3 x Transmit Data Output 4 DTR_____ Data Terminal Ready Output 5 SGND Signal Grounds b 6 DSR DatasetReagy Input 7 RTs Request To Send Output 8 rs Clear To Send Input 9 TR lng indicator input Tap Signal Level RS422 485 Pin No Signal Name Description 2 DTEin out 1 De TDB Transmit Data Output 2 Dt TID AD Transmit Data 3 RTS Request ToSend Output 4 RSS RequestToSend J 5 son Signal Grouna b 6 RX RDB Receive Data input o 7 R IBD AL Receive Data Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Appendix 31 S N OD 2 a ep oO gt a Monitoring Data 300 bps to 921 6 kbs Rate Com Settings 7 8 bit data 1 2 stop bits Odd Even Mark Space Support No Parit Certifications RoHS REACH Operating 40 C to 85 C temperatu
20. re Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Glossary Terms Used Glossary Terms Used 8 2 8 3 8 4 8 5 Glossary Terms Used Break State IG Ee Oo 66 gt FB A break state on a RS232 connection is characterized by the TX line going to Space logical 0 for a longer period than the maximum character frame length including start and stop bits Some application protocols e g LIN use this for synchronization purposes Docklight Pro Monitor shows break events as information VIPO BRK Break detected Example Break logging Character A character is the basic information unit processed by Docklight Pro Monitor It always uses one byte 8 bit Communication settings also allow data transmission with 7 bits or less but character information will always be stored and processed using in byte format L Clear to send is a control signal for flow control A receiver raises CTS line to allow the transmitter to send Raising and lowering of the CTS line allows device drivers with hardware flow control to maintain a reliable data connection between transmitter and receiver Refer to RS232 Connector Pinout for pin assignment Docklight Pro Monitor displays handshake information in Status Line Messages Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging DCD EEE Data Carrier Detect is a status signal most typicall
21. rial data and serial line events monitored Key functions include e Logging RS232 or RS485 422 serial data Serial communication data can be logged and displayed in different representations ASCII Hexadecimal Decimal and Binary High speed flexible output formatting for both binary data and text based protocols including control characters Logging RS232 serial line states Status Line Handshake signals RTS DTR CTS DSR DCR RI and Break State e High performance and high accuracy monitoring real time data acquisition with milliseconds precision e Real time filtering hide show logged data by type or source while the communication is running 2 2 Typical Hardware Setups Monitor the communication between PC and device Connect the Docklight Tap Pro or Docklight Tap 485 hardware between your device and your PC using at least one RS232 cable Connect the Tap Pro to a PC running Docklight Pro Monitor using a USB cable This can be the same PC used for communicating with the device Once the hardware has been connected you can start Monitoring Serial Communication 00000 0000 Tap Pro Device Docklight Pro Monitor fig Monitoring the communication between PC and device Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Welcome to Docklight Pro Monitor Monitor the communication between two PCs Connect t
22. rks and or registered trademarks of the respective owners The publisher and the author make no claim to these trademarks Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries Disclaimer While every precaution has been taken in the preparation of this document the publisher and the author assume no responsibility for errors or omissions or for damages resulting from the use of information contained in this document or from the use of programs and source code that may accompany it In no event shall the publisher and the author be liable for any loss of profit or any other commercial damage caused or alleged to have been caused directly or indirectly by this document Contact E Mail Support docklight fuh edv de Flachmann amp Heggelbacher Waldkirchbogen 27 D 82061 Neuried Germany http www fuh edv de Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Welcome to Docklight Pro Monitor Welcome to Docklight Pro Monitor 2 Welcome to Docklight Pro Monitor 2 1 Docklight Pro Monitor Overview Tr Te Docklight Pro Monitor is a Windows tool for high speed and high resolution serial communications monitoring RS232 RS422 and RS485 It is designed to work with the Docklight Tap Pro and Docklight Tap 485 devices Both Tap Pro and Tap 485 use their own high resolution hardware time base for all se
23. tically download and install the drivers For Windows XP or any situation where you cannot use Windows Update to obtain the drivers please use the following download http www docklight de download Docklight_Tap_Drivers zip For additional instructions and installation details for Windows XP please consult the installation guides on the FTDI website http ftdichip com Documents InstallGuides htm 8 11 un Local Interconnect Network A low cost serial communication bus for electronic systems in vehicles especially simple components like door motors steering wheel control climate sensors etc See also http www lin subbus org 8 12 MODBUS MODBUS is an application layer messaging protocol that provides client server communication between devices connected on different types of buses or networks It is commonly used as MODBUS over Serial Line in RS422 485 networks but can as well be implemented using TCP over Ethernet MODBUS TCP Two different serial transmission modes for MODBUS are defined RTU mode for 8 bit binary transmissions and ASCII mode RTU mode is the default mode that must be implemented by all devices See http www modbus org for a complete specification of the MODBUS protocol 8 13 Multidrop Bus MDB Multidrop Bus MDB is a more exotic RS232 RS485 application used for example in vending machine controllers which requires a 9 bit compliant UART The 9th data bit is used for selecting be
24. tween an ADDRESS and a DATA mode See also Wikipedia on MDB and the original MDB 3 0 specification for more information and details 8 14 Ring Indicator This is a signal sent from the DCE to the DTE which indicates to the terminal device phone line is ringing As implemented in PC hardware a hardware interrupt is generated that can be captured by the processor any time the RI signal changes state This functionality was originally present in the 8250 UART the chip responsible for providing the serial port which was Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Glossary Terms Used present in the original IBM PC XT Virtually all serial hardware for newer PC s including the popular 16550 UART has maintained this functionality Having support for this hardware interrupt means that a program or operating system can be informed of a change in state of the RI pin without requiring the software to constantly poll the state of the pin Refer to RS232 Connector Pinout for the pin assignment Docklight Pro Monitor displays handshake information in Status Line Messages Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging 8 15 RS232 The RS232 standard is defined by the EIA TIA Electronic Industries Alliance Telecommunications Industry Associations The standard defines an asynchronous serial data transfer mechanism as well as the physical a
25. values VTPO VTP1 Consider the channel mapping e Channel 1 default VTPO Tap Pro SUB D9 female side connects to a DTE e g a PC or a master control device e Channel 2 default VTP 1 Tap Pro SUB D9 male side connects to a DCE e g a modem device Baud Rate The Docklight Tap Pro and Docklight Tap 485 hardware supports baud rates from 300 bps to 921 6 kps Standard baud rates are available from the dropdown list 300 600 1200 2400 4800 9600 19200 28800 38400 56000 57600 115200 Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Reference 230400 460800 921600 Custom baud rates can be typed in directly Data Bits Parity Stop Bits Check your serial data link carefully for the correct settings especially Parity Standard settings are 8 Data Bits 1 Stop Bit Parity None Tap Signal Level Most applications will work with either standard RS232 voltage levels or TTL wltage levels Docklight Tap Pro and Docklight Tap 485 support both 3 3V and 5V TTL The RS422 485 setting only applies to Docklight Tap 485 5 5 Dialog Options Date Timestamp You can choose the format of date and timestamp in the communication window according to your needs Options Date Timestamp Control Characters Date Format YYYY MM DD DD MM YYYY DD MM YY No Date Time Format e 1 1000 sec resolution format 23 59 59 999 1 100 sec resolution format 23 59
26. y used to e g indicate connections between two modems This high low status bit is sent from DCE to DTE Refer to RS232 Connector Pinout for pin assignment Docklight Pro Monitor displays handshake information in Status Line Messages Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging DCE Data Communication Equipment The terms DCE and DTE refer to the serial devices on each side of a RS232 link A modem is a typical example of a DCE device DCE are Docklight Pro Monitor User Manual 10 2015 Copyright 2015 Flachmann und Heggelbacher GbR Glossary Terms Used normally equipped with either female SUB D9 or SUB D25 connector See also DIE 8 6 2 2 Data Set Ready is a control signal to indicate that the terminal is ready to receive data Refer to RS232 Connector Pinout for pin assignment Docklight Pro Monitor displays handshake information in Status Line Messages Status Lines RTS 0 DTR 1 CTS 1 DSR 1 DCD 0 RI 1 Example Status Lines logging 8 7 m Data Terminal Equipment The terms DCE and DTE refer to the serial devices on each side of a R 232 link PCs are typical examples for DTE devices DTEs are commonly equipped with either male SUB D9 or SUB D25 connector All pinout specifications are written from DTE perspective See also DCE 8 8 J Data Terminal Ready is a control signal transmitted from DTE e g Terminal PC to DCE e g modem DTR indicates
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