Please note: Due to our office relocation, orders may experience a delay of up to one week. Thank you for your understanding.





iOptron ASCOM Driver and Commander for CEM120


This ASCOM Driver and iOptron Commander uses RS232 command language 2014 V3.x
Updated 3/31/2024

Minimum Requirement for this driver:
  • Direct Mount Control: Windows 7 SP1/8.1 /10/11 with .NET (dotNET) Framework 4.8 or later installed. Make sure .NET Framework 3.5 is enabled in Windows 11.
  • Windows 64 bit OS is needed.
  • Planetarium control via ASCOM: ASCOM Platform 6.6 SP1
  • If Commander does not launch or can't find any mount, Please add the Commander File Fold and/or 3 exe files into the Exclusions/Whit List/Exception of the Antivirus software. Here is the instruction.

iOptron Commander and ASCOM Driver
Commander and ASCOM Driver Installer 9.1.3.0
Commander 9 Update Notes
Connect CEM120 to Computer with Commander
iOptron Control Command Language 2014 V3.10