# Troi Serial Plug-in™ 9.1 Troi Serial Plug-in is copyright 1999-2026 of Troi Automatisering. All rights reserved (March 18, 2026). Thank you for your interest in the Troi Serial Plug-in. This FileMaker® Pro plug-in adds functions to access the serial ports with FileMaker Pro. This cross-platform plug-in is compatible with FileMaker Pro 18 through FileMaker Pro 2025 and adds extra functions, like reading and writing from a serial port. Create powerful database systems by using this plug-in! ## Installation instructions Installation is very easy: just open the "All Serial Examples.fmp12" example file and the startup script will install the plug-in for you. See also the example file EasyInstallTroiPlugins.fmp12 (which is included in the download package) which contains the actual plug-in and install script. ### What Troi Serial Plug-in can do for you This plug-in can read and write to any serial port that is available on your computer. ### Notes and known issues NOTE Troi Serial Plug-in does not supply functions to access the USB bus. However, it will work with some USB to serial port adaptors, like for example those of Keyspan (now owned by Trip-Lite). Known issue The Serial_TextToAsciiValue function incorrectly returns 32 in this call: Serial_TextToAsciiValue( "-Encoding=ASCII_Windows" ; this::Ascii Text ; ) where the text contains the ASCII character 143 or 144. ### Who wrote it? Troi Serial Plug-in was designed and implemented by Troi Automatisering in The Netherlands. You can visit the Troi web site at: www.troi.com for additional information. Troi may also be reached by email at: info@troi.com ### Where can I get the latest version and more information? The latest versions of our software are available for downloading at our web site: www.troi.com You can also download the OSErrrs database, which lists all Operating System error codes for macOS and Windows, some of which the plug-in may return. The web site is also your source for late breaking information, company information, FileMaker tips and more. ## System requirements ### System requirements macOS macOS 12 (Monterey) macOS 13 (Ventura) macOS 14 (Sonoma) macOS 15 (Sequoia) ### System requirements Windows Windows 10 including these updates: November 2019 Update May 2020 Update October 2020 Update May 2021 Update November 2021 Update 2022 Update Windows 11 including these updates: 22H2 (September 20, 2022 Update) 23H2 (October 31, 2023 Update) 24H2 (October 1, 2024 Update) ### FileMaker Pro requirements FileMaker Pro Advanced 18 FileMaker Pro 19 FileMaker Pro 20 (FileMaker Pro 2023) FileMaker Pro 21 (FileMaker Pro 2024) FileMaker Pro 22 (FileMaker Pro 2025) ### FileMaker Server requirements FileMaker Server 18 FileMaker Server 19 FileMaker Server 20 (FileMaker Server 2023) FileMaker Server 21 (FileMaker Server 2024) FileMaker Server 22 (FileMaker Server 2025) ## Using Troi Serial as server-side plug-in It has always been possible to use FileMaker Server to serve databases that use functions of the Troi Serial Plug-in (client-side): you need to have the plug-in installed at the client's computer. Troi Serial Plug-in can also be used by FileMaker Server as a server-side plug-in or as a plug-in used by the web publishing engine. For more information on server-side and web-side plug-ins please read the separate document: Installing and using Troi Plug-ins on FileMaker Server. ## Troi Serial Plug-in is a commercial product You can try-before-you-buy. This means that you are free and invited to test the plug-in 30 days before you pay. You may also make copies of the original and complete package (including this Read Me file) and distribute it to customers, friends etc. However, you may not distribute a modified or licensed version. ### Use Troi Serial Plug-in at your own risk Although Troi Serial Plug-in was tested carefully, we can not be responsible for any damages resulting from using this software. Please try it out on a test database. Your system may be using an extension (unknown to us) that interferes with the proper functioning of Troi Serial Plug-in. We like to hear feedback on the benefits and shortcomings of the plug-in. Please include the FileMaker version, the platform and version of the operating system in your suggestions and comments. ## What are the costs? Troi Serial Plug-in is more expensive than our other plug-ins, as it is a very specialized plug-in, with a limited customer base. We currently only sell a cross-platform developer license which allows you to deploy it with your solution, both on macOS and on Windows:
Developer License |
Developer license (for macOS and Windows) | US$ 999
### Upgrades from previous versions You need to use a new 9.0 version of the registration. If you bought a license for Troi Serial Plug-in on or after August 1, 2024 the upgrade is FREE! Eligible users have been sent a new registration. Contact us if you have not received yours. If you bought a license before August 1, 2024 you will need to buy an upgrade to use Troi Serial Plug-in 9.0. We currently don't have an upgrade option for single licenses. We only have an upgrade option for developer licenses. Please contact us if you have any questions about this.
Upgrades from previous versions: |
Single license (macOS or Windows): | please contact us!
Multiple single licenses (macOS or Windows): | please contact us!
Upgrades from previous Developer Licenses: |
Cross platform Developer license to Cross platform Developer license: | US$ 439
## How to pay? Paying for a license is easy. We have several ways to pay. More information on this can be found on the order page on our web site: www.troi.com/shop/. You can pay online by credit card via our web store, we also accept PayPal and other payment methods. ### Protection and unlocking the application Troi Serial Plug-in has a protection scheme. After you pay Troi will tell you how to indicate to Troi Serial Plug-in that you have paid the license fee. After you've supplied the payment data, the following is changed: the not registered warning is replaced by your name. the flash screen that shows at the first time the plug-in is used is removed. Of course also the delay (which is longer after 30 days of use) will be removed. ## Bug reports and wish list If you find a bug, please report this by e-mail: info@troi.com. If you have any comments or other functions that you think need to be added, please notify us! We have a lot of ideas for this plug-in, so be sure to check our web site for new plug-ins and improved versions. And please pay for software you keep using, so that the wish list becomes reality. ## Versions You can find what has been changed in this and previous versions of Troi Serial Plug-in in the separate file: Release_notes.htm. Thanks for supporting our software!