Version 5.2.1 - BUG: The change "Only available serial ports are listed" in version 5.2.0 do not work with virtual ports. Version 5.2.0 - NEW: New error message "Insufficient bytes received" instead of "Timeout error" in case some bytes are received but not the whole response. - NEW: In definition dialog (F8). Besides number per row, you can now also specify: Fit to quantity. This is convenient if one reads very few values. If e.g. read one value from address 8 then the cells from 0 to 7 is not empty as the row now counts from 8, - BUG: With the Communication traffic window open, nothing displayed, and check on "Stop on error". Then you get an error message "The parameter is incorrect". - CHG: Disconnect do no more wait for timeout. This was inconvenient in case of no response from slave device if very high timeout setting. - CHG: Slave ID range for read functions changed to 0-255 was 1-255. This is convenient with TCP/IP connections in some cases. - CHG: Only available serial ports are listed. - NEW: Serial port number 1 - 255. Was 1 - 64. Version 5.1.0 - NEW: Most recently used IP Addresses. - NEW: ms added to the time stamp in the log file. - CHG: Unnecessary error code for setting serial port buffers removed. Problem with opening of serial port in rare cases. Version 5.0.5 - NEW: Added a Clear button in the traffic window. - BUG: In TCP/IP mode: Empty receive buffer before request to avoid false "Transaction ID Error" if response is sent from the slave after timeout. Version 5.0.4 - CHG: Handling of timeout changed to avoid timeout at high baud rates with some USB/232/485 converters. Version 5.0.3 - CHG: Formatting of floating point numbers changed for better display of small numbers < 0.000001 Version 5.0.2 - NEW: Possible to disable Read/Write in case of error. - CHG: USB/232/485 converters using chip from FTDI with driver version 2.08.02 (August 11, 2010) and newer: The driver Detect error when application requests RTS_CONTROL_TOGGLE handshaking since this is not supported in hardware. Modbus Poll could not open the serial port with this driver. Version 5.0.1 - NEW: Error message in case that Excel could not be started. - NEW: Both date and time is logged in Excel. - NEW: Possible to log data if any changes only. - CHG: Short cut keys for display type changed. - BUG: Write multiple coils did not work in some cases if quantity > 128. Version 5.0.0 - NEW: Log Modbus data direct to Excel sheet. Version 4.5.2 - BUG: In rare cases a serial port was not listed by name but COMxx only. Version 4.5.1 - NEW: Content of alias cells are now moved to other cells if number of rows is changed. - BUG: If an Alias field was edited, there was no prompt to save changes when closing Modbus Poll. - NEW: Serial port names are now listed. Version 4.5.0 - NEW: Modbus RTU/ASCII Over TCP/IP - NEW: Modbus RTU/ASCII Over UDP/IP - NEW: Date in log file Version 4.4.1 - NEW: Max number of windows extended to 50. - NEW: Response error is raised if CR-LF sequence is not correct in ASCII mode. - BUG: The 'Remove Echo' function did not work correct with write functions 15 and 16. - CHG: Serial communication timeouts changed for 300, 600, 1200 and 4800 baud. Version 4.4.0 - NEW: Modbus UDP/IP. Version 4.3.4 - BUG: Function (06/16) Radio button in "Write Single Register" dialog was not set when the dialog was opened from function menu. - NEW: Now you can read the log file even though Modbus Poll is still logging. - NEW: Improved error information in case of read/write error. - BUG: “NULL bytes” was discarded if another program used the serial port before, and it had the "discard NULL bytes" option set in the serial port. This caused “Bytes missing error” information displayed on the error line. Version 4.3.3 - NEW: Setting of TCP/IP Connect timeout. Version 4.3.2 - BUG: Max value for TCP/IP port was 32767 should be 65535 - NEW: Serial port 1-64. Was 1-32. - BUG: Using function 16 with display set to Long, Float or Double inverse did not write the data in inverse order if launched from saved file. - CHG: Minimum scan rate is now 1ms. Version 4.3.1 - CHG: Help file updated. Version 4.3.0 - NEW: Unicode support. Write any language in the alias cells. - NEW: "Read/Write enabled" also available from Setup menu. Version 4.2.2 - BUG: A link in the help file did not work. - BUG: Possible to edit the text in the Display drop-down box. Version 4.2.1 - NEW: Save scroll bar position when save to file. - NEW: XP-themes. - NEW: Now you can set "Display Type" in the "Read/Write Definition" dialog box also. - NEW: Display the Modbus address with the value in the cell. - CHG: Help files now use html format. - CHG: Timeot handling of divided TCP/IP response. Version 4.2.0 - NEW: Function 05, 06, 15 and 16 now also possible on main windows. Very useful for write to a modbus slave repeatedly. - NEW: Close dialog on "Response ok" added. - CHG: Display Binary is formatted as: 0000 0000 0000 0000. Was 0000000000000000. Version 4.1.3 - BUG: Error counter dialog box did not work correct after "Transaction ID error" was added in version 4.1.2. Version 4.1.2 - BUG: TCP/IP could Write "Bytes missing error" when it should be "Timeout error". - NEW: TCP/IP, Show "Transaction ID error" if transaction ID is wrong. Version 4.1.1 - CHG: TCP/IP mode: Communication window show RX packets also if length < 9 or length > 262 (max 300). - NEW: 128000 and 256000 Baud supported. - NEW: If a "*.mbp" file is located in the same directory as the workspace (*.mbw) file then the "*.mbp" file is stored as a relative filename in the *.mbw. This allow you to move the *.mbw file with the *.mbp files to another directory. Thus The *.mbw file will still be able to find the *.mbp files as they are relative to the *.mbw. Version 4.1.0 - NEW: No more double click in order to edit a value. Just start typing. - CHG: Improved handling of divided TCP/IP packets. - CHG: Information lines font. Version 4.0.2 - BUG: Did not update cells when log is on. Version 4.0.1 - BUG: Did not always update all cells when display as float. Version 4.0.0 - NEW: Grid used to view Modbus values. - NEW: Alt+S, Alt+U, Alt+H and Alt+B used to change display types. - CHG: F8 used to display Poll definition instead of F2. (F2 used to edit cell) - CHG: Function short cut keys now Alt+F5, Alt+F6, Alt+F7 and Alt+F8. Was: F7, F8, F9 and F10. - CHG: The 10 minutes trial period is extended to 15 minutes. Version 3.7.4 - NEW: Hyper link in about box - BUG: Double click a *.mbp file did not open Modbus Poll. This bug arose in V3.6.3 where Microsof Visual C++ .NET 2003 compiler was used. Read more: http://www.codeguru.com/cpp/w-d/doc_view/misc/article.php/c8549/ Version 3.7.3 - BUG: String length in test center was limited to 600 Chars. This was not enough for sending 1968 bits or 125 registers. - BUG: Max length possible to enter in "write multiple coils dialog" 2000 -> 1968. - CHG: Tab order in "Poll definition dialog". Version 3.7.2 - NEW: Serial port 1-32. Was 1-8. Version 3.7.1 - BUG: "Byte count error" + Exception error 0Ah + 0Bh was missing in some write dialog boxes. - CHG: Send button disable while awaiting for a response. Version 3.7.0 (Not published on home page) - NEW: "Byte count error" is shown when the byte counter does not match in the response. - NEW: Exception error 0Ah + 0Bh added. - CHG: The write int, float and double dialog boxes does no more close when the send button is pressed. Version 3.6.3 - CHG: RTS disable delay, max value = 100ms. - CHG: MS VC++ version 2003 used. - CHG: Version number format changed and build number is shown in about box. Version 3.60b - CHG: Precision format in float and double display changed. - BUG: Memory leak problem with the OLE/Automation function CreateRequest fixed. - BUG: If slave device returned exception error = 0 it was displayed as: "Exception Error 128" instead of "Exception Error 0" Note that 0 is not an expected error code according to the Modbus specification. - CHG: Excel example changed. Version 3.60a - BUG: Text for TCP/IP Timeout information corrected. - CHG: The 4 minutes trial period is extended to 10 minutes. Version 3.6 - NEW: TCP/IP 'Display communication' improved. - NEW: 'Remove Echo' check box in connection setup added. - NEW: Connection information in status bar. - NEW: Error Counters in display menu. (F11) - CHG: Minor changes in help file.