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- ModScan Application Change History
- March 15, 1996
- Reversed prefix display for registers to use <40000> for Holding
- Registers (Msg Type 03), and <30000> prefix for Input Registers,
- (Mesg Type 04). The prefix defined by the standard does not
- track the message type as assumed in the original ModScan design.
- Version Number changed to 1.A11
- March 23, 1996
- Added support for message types 15 & 16, (Force Multiple Coils &
- Preset Multiple Registers).
-
- Version Number changed to 1.A20.
- April 25, 1996
- Modified display view to reduce "flicker" during live updates
- of MODBUS data points.
- Added ability to print data display.
- Version Number changed to 1.A21.
- June 10, 1996
- Modified display to erase old counter values after reset.
- Version Number changed to 1.A22
- August 31, 1996
- Added ability to transmit user defined command string to slave device.
- Version Number changed to 1.A23
- October 25, 1996
- Added ability to control RS-232 control lines RTS/DTR.
- Version Number changed to 1.A25
- January 4, 1997
- Added ability to display/modify registers using floating-point notation.
- Version Number changed to 1.A26
- February 3, 1997
- Corrected problems with Writing data using the Ascii protocol.
-
- Version Number changed to 1.A27
- February 16, 1997
- Reversed logic for Floating-Point display, (swapped vs. non-swapped)
- Version number changed to 1.A28
- March 14, 1997
- Added Binary display option, corrected ASCII protocol operation
- to ignore extraneous characters outside the msg frame.
- Version number changed to 1.A29
- April 20, 1997
- Added dialog box to allow setting register values using discrete
- check boxes for binary data.
- Version Number changed to 1.A2A
- June 4, 1997
- Added option to display Long Integer Values.
- Version Number changed to 1.B02
- June 5, 1997
- Changed Long Integers to Double Floats
- Version 1.B03
- July 14, 1997
- Added ability to log data to ascii text file.
- Version 1.B04
- July 29, 1997
- Added option to display register addresses in HEX.
- Version 1.B05
- August 6, 1997
- Added ability to enter Address > 9999 in script file.
- Version 1.B06
- Sept. 15, 1997
- Script execution of multiple write functions was calculating
- wrong LRC in ASCII transmission mode.
- Version 1.B07
- Feb 2, 1998
- Corrected exception response handling for Ascii Transmission mode.
- Enable baud rate selections up to 128K.
- Version 1.B08
- March 8, 1998
- Script execution of multiple write functions was calculating the
- wrong checksum in the expected reply message.
- Version 1.B09
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