![]() The CNS Clock II | Tac32Plus Totally Accurate Clock plus the Time Interval Counter Module (TIC) | ![]() Tac32Plus Software |
Software:
![]() | Install Tac32Plus for Windows: Download the Tac32Plus installation file by clicking the icon to the left. |
![]() | USB Drivers for the CNS Clock II: Version 2.12.28 (30-Aug-2017). Un-compress this library file to a temporary location and use one of the newly created directories to load the USB driver when Windows detects new hardware or use with the update driver function to change to the latest USB driver. The directory “USB Driver” supports 32-bit and 64-bit versions of Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, Windows 10 and Windows 11. The directory “USB Driver Old – Win 98 and ME” supports Windows 98 and Windows ME. |
![]() | GPSTime for Windows: GPSTime is a replacement for Tac32Plus. It is written using the Qt development environment so as to be able to be fielded on multiple operating systems. GPSTime is currently only available as a 64-bit application and has only been tested on Window 10/11 and Ubuntu 22.04.3 LTS Linux. This is the Windows version. The passcode is the same as the current version of Tac32Plus. Please try it out and report your experiences to Rick at CNS Systems, Inc. Version 1.2.3, July 21, 2025 – Corrected the Manual Commands so that when Send is selected the command is correctly sent to the GPS module. Version 1.2.2, July 9, 2025 – Corrected the processing and display of velocity data for @@Bk and @@Ek messages. Version 1.2.1, June 29, 2025 – Update to match Tac32Plus Version 2.7.38 – Correct the parsing of model numbers in the @@Cj message. – Now compiles on QT 6.9.1 with the llvm_mingw 64-bit compiler. |
![]() | Install GPSTime for Linux: GPSTime software for Linux has been developed and tested on Ubuntu Desktop 22.04.3 LTS using the Wayland windows manager (not X11). The distribution file is in deb format that is designed for Debian Linux and its derivatives such as Ubuntu. This release may work on other such releases, but it has not yet been tested. If you test this release, please let us know. Constructive comments are encouraged. Version 1.1.1 (18-Sep-2023). – Update to match Tac32Plus Version 2.7.34 To install, download this DEB installation file by clicking the icon to the left. Change to your local download directory and see that the file is present there. Then check the file integrity with this command: dpkg -c GPSTime-1.1.1-Linux.deb. If all is good, install with this command: sudo dpkg -i GPSTime-1.1.1-Linux.deb. GPSTime will be installed in the /opt systems directory that is reserved for the installation of add-on application software packages. To remove GPSTime enter the command sudo dpkg -r GPSTime. For Linux users, be sure the current user is a member of the “dialout” group. This is needed to give access to the serial ports. The easy way to do this is with the following command issued by a user with administration privileges: sudo usermod -a -G dialout USERNAME To run the program, click on the GPSTime icon in the applications screen. To run from the command line enter dpkg /opt/GPSTime/bin/GPSTime. The first action is to enter the passcode in the about window and to select the correct serial port in the GPS Receiver Serial Port Settings dialog that is accessed from the menu item Edit / Select GPS Interface. |
![]() | TCPIP Discoverer: This utility can help find a CNS Clock II when you don’t know its current IP address. It listens to port 30303 for an information packet containing the CNS Clock II’s current hostname, MAC and IP addresses. Just run the executable “tcpip_discoverer.jar” and you will see a windows screen. Press the “Discover Devices” button to solicit a response from the CNS Clock II. Otherwise you will see an unsolicited response on power up or on configuration change. |
Documents:
![]() | The Documentation for Tac32Plus and the CNS Clock II is available in Adobe format. To download right click on the button to the left and choose to save the target as a file. |
![]() | The Documentation for Tac32Plus and the original CNS Clock is available in Adobe format. To download right click on the button to the left and choose to save the target as a file. |
![]() | The TIC Documentation for Tac32Plus is available in Adobe format. To download right click on the button to the left and choose to save the target as a file. |
![]() | The documentation files require Adobe Acrobat reader. |
Tac32Plus Revisions
Latest Version: 2.7.38 | Version 2.7.38, Jun 29, 2025 Corrections:
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Version: 2.7.37 | Version 2.7.37, April 28, 2025 New Features:
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Version: 2.7.36 | Version 2.7.36, March 18, 2024 New Features:
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Version: 2.7.35 | Version 2.7.35, January 8, 2024 New Features:
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Version: 2.7.34 | Version 2.7.34, September 18, 2023 Corrections:
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Version: 2.7.33 | Version 2.7.33, May 27, 2023 Corrections:
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Version: 2.7.32 | Version 2.7.32, October 31, 2022 Corrections:
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Version: 2.7.31 | Version 2.7.31, July 04, 2022 New Features:
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Version: 2.7.30 | Version 2.7.30, September 27, 2020 Corrections:
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Version: 2.7.29 | Version 2.7.29, July 22, 2020 Corrections:
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Version: 2.7.28 | Version 2.7.28, February 11, 2020 Corrections:
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Versions 2.0 ‑ 2.7.3 1.0 ‑ 1.2.8 | For earlier release notes click on the Version 1 or 2 links on the left. |