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The 6K, Gemini GV6 / GT6 and the Gem6K (GV6K and GT6K) communicate in ASCII.
Related FAQ: https://community.parker.com/technologies/electromechanical-group/w/electromechanical-knowledge-base/929/rs232-troubleshooting-for-the-geminis RS232 Troubleshooting for the Geminis
For users with large programs, com6server 3.3.3.9 isn't as fast and may present issues.
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Update directions are in the .txt file within the zip:
This information is given as courtesy for existing customers and users.
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Version 3.3.3.9 is included with MotionPlanner 4.3.2 installer, or as a separate install: