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Docklight V2.2 User Manual 07/2016 Copyright 2016 Flachmann und Heggelbacher GbR

Appendix

10.5 Docklight Monitoring Cable RS232 SUB D9

Docklight Monitoring Cable is a RS232 full duplex monitoring cable that is designed for

Monitoring serial communications between two devices

.

We offer a rugged and fully shielded RS232 Monitoring cable acessory. For more details
see our

product overview

pages and the

Docklight Monitoring Cable

datasheet.

NOTE: Our

or

Tap Pro / Tap RS485

data taps offer superior monitoring

characteristics, and do not require two free RS232 COM ports on your PC. Only in rare
or legacy applications the Docklight Monitoring Cable is still the preferred choice today.

TIP: An inexpensive and quick solution for basic monitoring can be making your own
Monitoring Cable using a flat ribbon cable and SUB D9 insulation displacement
connectors, available at any electronic parts supplier.

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Summary of Contents for Docklight V2.2

Page 1: ...Docklight V2 2 User Manual 07 2016 Copyright 2016 Flachmann und Heggelbacher GbR...

Page 2: ...Snapshot of the Communication 23 5 5 Logging and Analyzing a Test 23 5 6 Checking for Sequences With Random Characters Receive Sequence Wildcards 24 5 7 Saving and Loading Your Project Data 26 6 Work...

Page 3: ...Settings Communication Filter 54 8 10 Dialog Options 55 8 11 Dialog Customize HTML Output 56 8 12 Dialog Expert Options 58 8 13 Keyboard Console 59 8 14 Checksum Specification 59 9 Support 62 9 1 Web...

Page 4: ...MODBUS 79 11 10 Multidrop Bus MDB 80 11 11 Receive Sequence 80 11 12 RS232 80 11 13 RS422 81 11 14 RS485 81 11 15 Send Sequence 81 11 16 Sequence 82 11 17 Sequence Index 82 11 18 Serial Device Server...

Page 5: ...Copyright...

Page 6: ...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...

Page 7: ...Introduction...

Page 8: ...ithin the RS232 data that indicates a problem condition Docklight manages a list of such data sequences for you and is able to perform user defined actions after detecting a sequence e g taking a snap...

Page 9: ...ossibility of a hardware fault must be considered in most systems Imagine you have a device that sends an error message in the case of a hardware fault A second device should receive this error messag...

Page 10: ...Additional requirements For RS232 testing or simulation Minimum one COM port available Two COM ports for monitoring communication between two serial devices For low latency monitoring using Docklight...

Page 11: ...User Interface...

Page 12: ...he small lock icon in the top left corner When unlocked the list can be changed by dragging a sequence to a new position with the left mouse button pressed 3 Receive Sequences Define edit and manage y...

Page 13: ...by pasting it into the Receive Sequence window TIP Try the right mouse button to display a context menu for Cut Copy and Paste operations 3 3 Notepad The Docklight Notepad is a separate window for wr...

Page 14: ...Features and Functions...

Page 15: ...tamps Docklight is able to process serial data streams containing any ASCII code 0 255 decimal Since there are non printing control characters ASCII code 32 and different encodings for ASCII code 127...

Page 16: ...tures and Functions Docklight supports the use of wildcards e g wildcard as a placeholder for one arbitrary character within Receive Sequences and Send Sequences See the sections sending commands with...

Page 17: ...Working with Docklight...

Page 18: ...te and all other COM Port Settings required 5 Confirm the settings and close the dialog by clicking the OK button C Defining the Send Sequences to be used You will probably test your serial device by...

Page 19: ...light stops communications 4 Click the OK button to add the new sequence to the list Repeat steps 1 4 to define the other Receive Sequences you need to perform your test E Storing the project Before r...

Page 20: ...Settings 2 Choose communication mode Send Receive 3 At Send Receive on comm channel set the COM Port where your serial device is connected 4 Set the baud rate and all other COM Port Settings required...

Page 21: ...the communications flow All protocol information can be logged to a text file for further analysis See section Logging and analyzing a test TIP Using the notepad window F12 key menu Tools Show Notepa...

Page 22: ...TAP1 is selected automatically 4 Set the baud rate and all other communication parameters for the protocol being used NOTE Make sure your PC s serial interfaces port works properly at the baud rate a...

Page 23: ...haracteristic error sequence This could mean storing and analyzing several MB of data when you are actually just looking for a few bytes though if they appeared at all As an alternative you can use th...

Page 24: ...the serial device consists of a fixed part e g temperature and a variable part which is the actual value e g 65F To detect all these responses correctly in the serial data stream you can define Receiv...

Page 25: ...and the terminating CR character You can use the default control character shortcut Ctrl Enter to enter the CR ASCII code 13 The sequence is now t e m p e r a t u r e F r 5 Specify an Action to perfor...

Page 26: ...n _B Same as _A but in Binary representation _A 1 4 Extended syntax Insert only the first 4 characters of this Receive Sequence start with Character No 1 sequence length 4 _H 3 1 Extended Syntax Inser...

Page 27: ...is saved in a Docklight project file ptp file using the menu File Save Project or File Save Project As It is generally recommended to save your project before starting a test run NOTE Saving your pro...

Page 28: ...Working with Docklight Advanced...

Page 29: ...h parameters A Preparing the project Create a new Docklight project and set up all communication parameters B Defining the commands used 1 Create a new Send Sequence Enter a Name for the sequence 2 En...

Page 30: ...es Docklight cannot control the amount of incoming data Since Docklight applies a number of formatting and conversion rules on the serial data only a limited number of bytes per seconds can be process...

Page 31: ...iming inaccuracies can be introduced by The COM device s chipset e g the internal FIFO First In First Out data buffer The USB bus transfer for USB to Serial converters The serial device driver for Win...

Page 32: ...message in the Sequence section For example here we use a very simple HEX message as our sequence 01 02 03 04 Use the context menu via right mouse button or F7 to create the wildcard NOTE See also th...

Page 33: ...hanges B Running the test 6 Start communications and send some data telegrams to your Docklight application COM port The Communication Window output could look like this 15 02 2016 17 43 28 072 RX 01...

Page 34: ...d DTR signals The example sequence now reads 084 101 115 116 4 Add the new RTS DTR state as a decimal parameter value see below In our example we need the DTR signal set to high We choose 002 as the p...

Page 35: ...RX side The parity is switched back to the original Communication Settings after the Send Sequence has been completely transmitted NOTE The most useful parameters for this function character are the...

Page 36: ...character CTS DSR DCD RI changes 4 Add the handshake state as a decimal parameter value see above In our example we want to detect when CTS is high while all other signals are low This means we need t...

Page 37: ...ide a Receive Sequence to specify a minimum silent time where no further characters should be received This is useful for detecting pauses in the data stream that indicate the beginning end of a teleg...

Page 38: ...Docklight s accuracy for delay timing is limited because it has no control over the UART s internal TX FiFo buffer The specified delay times for the delay function character are minimum values Measure...

Page 39: ...using the right mouse button and choose Function character break signal The example sequence now reads T e s t 3 Click OK to confirm the changes 4 Send the test sequence using the Send button The TX l...

Page 40: ...t cannot tell the exact position of the break signal within the data stream The break signal will sometimes show up earlier in the data stream but never later than the actual position To define a Rece...

Page 41: ...Examples and Tutorials...

Page 42: ...settings listed below This should work for most standard modems Communication Mode Send Receive COM Port Settings 9600 Baud No parity 8 Data Bits 1 Stop Bit Getting started Use the Windows Device Man...

Page 43: ...all modems AT FCLASS Fax classes supported by the modem if any AT CLS Shows whether the modem supports the Rockwell voice command set ATI n Displays manufacturer s information for n 1 through 7 This...

Page 44: ...25 44 268 RX o Pong Pong received 3 8 2009 16 25 44 271 TX o Ping 3 8 2009 16 25 44 286 RX o Ping Ping received 3 8 2009 16 25 44 289 TX o Pong 3 8 2009 16 25 44 303 RX o Pong Pong received 3 8 2009...

Page 45: ...92 RX 02 04 02 27 10 E7 0C 5 29 2015 18 45 43 237 TX 03 04 00 00 00 01 30 28 5 29 2015 18 45 43 392 RX 03 04 02 00 00 C0 F0 5 29 2015 18 45 58 724 TX 04 04 00 00 00 01 31 9F 5 29 2015 18 45 58 870 RX...

Page 46: ...Reference...

Page 47: ...The representation may be chosen using the Options dialog window Print Communication Print the contents of the communication window The communication data is printed in the same representation that i...

Page 48: ...ble the keyboard console to send keyboard input directly Keyboard Console Off Disable the keyboard console Show Notepad Show the notepad window Project Settings Select the current project settings com...

Page 49: ...at contains both printing characters letters A z digits 0 9 and non printing control characters ASCII code 0 to 31 Predefined shortcuts are Ctrl Enter for carriage return CR decimal code 13 Ctrl Shift...

Page 50: ...ing values e g measurement or status values See section Checking for sequences with random characters for details and examples Control Character Shortcuts Using keyboard shortcuts is a great help when...

Page 51: ...ow The Find Sequence function searches the contents of the communication window The search is performed in the communication window tab that is currently selected ASCII HEX Decimal or Binary You may h...

Page 52: ...1 the data from device 2 is Channel 2 Communication Channels Serial COM ports or Docklight TAP VTP A communication channel can be configured as Serial COM port RS232 RS422 or RS485 TAP port for Dockli...

Page 53: ...require any of the RS232 communication parameters In some cases such COM port drivers even return an error when trying to set the RS232 parameters so Docklight would fail to open the COM channel Use...

Page 54: ...Some RS232 to RS485 converters require manual RTS control i e the RS232 device PC tells the converter when it should enable its RS485 driver for transmission If you choose RS485 Transceiver Control t...

Page 55: ...g ASCII text as well as non printing control characters it is sometimes helpful to see the names of the occurring control characters in the ASCII mode display window Docklight provides an optional dis...

Page 56: ...acter code 126 Keyboard shortcuts can be used within the following Docklight dialogs and functions Dialog Edit Send Sequence Dialog Edit Receive Sequence Dialog Find Sequence Dialog Send Sequence Para...

Page 57: ...utes e g font family sans serif font size small NOTE Docklight will insert additional u underline i italic and b bold HTML tags if such formatting options are activated in the Display Settings You do...

Page 58: ...as an Administrator Otherwise the data collection process will run with the maximum permitted priority but not Realtime class External High Priority Process mode must be used with care especially when...

Page 59: ...as CR ASCII 13 plus LF ASCII 10 The ESC key sends ESC ASCII 27 Use control character shortcuts to send other ASCII control characters 8 14 Checksum Specification Checksum specifications are used in E...

Page 60: ...are a lot of CRC variations and algorithms around and choosing not to mention understanding the right CRC flavor can be a rather difficult job A good way to make sure your CRC calculation makes sense...

Page 61: ...of the sequence and not relative to the start of the sequence Examples startPos is 4 start calculating at the 4th character from the end len is 1 use everything until the end of the sequence targetPos...

Page 62: ...Support...

Page 63: ...eshooting information see our online support pages available at http www docklight de support 9 2 E Mail Support We provide individual e mail support to our registered customers Please include your Do...

Page 64: ...Appendix...

Page 65: ...d 13 0D CR Carriage return 14 0E SO Shift out 15 0F SI Shift in XON resume output 16 10 DLE Data link escape 17 11 DC1 XON Device control character 1 18 12 DC2 Device control character 2 19 13 DC3 XOF...

Page 66: ...6 6 Six 55 37 7 Seven 56 38 8 Eight 57 39 9 Nine 58 3A 59 3B 60 3C 61 3D 62 3E 63 3F 64 40 65 41 A A 66 42 B B 67 43 C C 68 44 D D 69 45 E E 70 46 F F 71 47 G G 72 48 H H 73 49 I I 74 4A J J 75 4B K K...

Page 67: ...15 73 s s 116 74 t t 117 75 u u 118 76 v v 119 77 w w 120 78 x x 121 79 y y 122 7A z z 123 7B 124 7C 125 7D 126 7E Tilde 127 7F DEL Delete 10 2 Hot Keys General Hot Keys Applies to Communication windo...

Page 68: ...unction Hot Key Find a Sequence Ctrl F Clear All Communication Windows Ctrl W Toggle Between ASCII HEX Decimal and Binary Representation Ctrl Tab Send Sequences Receive Sequences List Function Hot Key...

Page 69: ...cription DTE in out 1 DCD Data Carrier Detect Input 2 RX Receive Data Input 3 TX Transmit Data Output 4 DTR Data Terminal Ready Output 5 SGND Signal Ground 6 DSR Data Set Ready Input 7 RTS Request To...

Page 70: ...o Signal Name Description 1 DSR RI Data Set Ready Ring Indicator 2 DCD Data Carrier Detect 3 DTR Data Terminal Ready 4 SGND Signal Ground 5 RX Receive Data 6 TX Transmit Data 7 CTS Clear To Send 8 RTS...

Page 71: ...l modem cable but with SUB D9 male connectors on both ends DCE DCE hardware flow control null modem cable with partial handshaking but with SUB D9 male connectors on both ends SUB D9 Simple Straight C...

Page 72: ...6 Copyright 2016 Flachmann und Heggelbacher GbR Appendix SUB D9 Null Modem Cable with Full Handshaking Area of Application DTE DTE Communication with DTE DCE compatible hardware flow control Works als...

Page 73: ...re details see our product overview pages and the Docklight Monitoring Cable datasheet NOTE Our Docklight Tap or Tap Pro Tap RS485 data taps offer superior monitoring characteristics and do not requir...

Page 74: ...mmunications between two devices Docklight has built in support for the Docklight Tap It recognizes the dual port USB serial converter and offers high speed low latency access to the monitoring data U...

Page 75: ...for the USB port They are supported by Docklight in a similar way as the Docklight Tap Docklight has built in support for Tap Pro and Tap 485 Use Docklight Monitoring Mode and Receive Channel settings...

Page 76: ...76 Docklight V2 2 User Manual 07 2016 Copyright 2016 Flachmann und Heggelbacher GbR Appendix...

Page 77: ...Glossary Terms Used...

Page 78: ...bset of the 256 possible 8 bit characters will be used but the characters will still be stored and processed using an 8 bit format 11 4 CRC Cyclic Redundancy Code A CRC is a method to detect whether a...

Page 79: ...busy or for some reason cannot further communicate The DTE and DCE must agree on the flow control mechanism used for a communication session There are two types of flow control hardware and software...

Page 80: ...2 a character sequence e g 6F 6B 13 10 in HEX format 3 an action that is triggered when Docklight receives the defined sequence 11 12 RS232 The RS232 standard is defined by the EIA TIA Electronic Indu...

Page 81: ...erence to signal ground 7V to 7V 11 14 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 o...

Page 82: ...ive Sequence List The Sequence Index is displayed in the upper left corner of the Edit Send Sequence or Edit Receive Sequence dialog 11 18 Serial Device Server A Serial Device Server is a network devi...

Page 83: ...sion using a predefined baud rate Any data packet sent on the first COM port will appear in the second COM port s receive buffer almost immediately For most debugging and simulation purposes this limi...

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