Downloads Archive
⚠️ CRITICAL NOTICE ⚠️
Version 4.94 (released June 2003) is the LAST OFFICIAL firmware release from Rockwell Automation before the retro-encabulator product line was discontinued. All versions 5.0 and above are unofficial community-maintained releases. While we appreciate the community's efforts, REPS cannot guarantee compatibility or safety of unofficial releases. Use at your own risk!
Version 4.94 (released June 2003) is the LAST OFFICIAL firmware release from Rockwell Automation before the retro-encabulator product line was discontinued. All versions 5.0 and above are unofficial community-maintained releases. While we appreciate the community's efforts, REPS cannot guarantee compatibility or safety of unofficial releases. Use at your own risk!
📋 Installation Notes:
• Always disconnect the panendermic semi-boloid slot before firmware updates
• Ensure ambient magneto-reluctance is below 47 milliwangs
• Back up your grammeters configuration before proceeding
• See the Installation Guide for complete instructions
• Always disconnect the panendermic semi-boloid slot before firmware updates
• Ensure ambient magneto-reluctance is below 47 milliwangs
• Back up your grammeters configuration before proceeding
• See the Installation Guide for complete instructions
Firmware Releases
| Version | Release Date | Status | Size | Notes | Download |
|---|---|---|---|---|---|
| 5.3 | Jan 2026 | COMMUNITY | 2.4 MB | Win 11 24H2 support, experimental dingle-arm calibration | RE_FW_5.3.community.zip |
| 5.2 | Dec 2025 | COMMUNITY | 2.3 MB | USB-C support added by SidewinderMax | RE_FW_5.2.community.zip |
| 5.1 | Aug 2024 | COMMUNITY | 2.1 MB | Win 10/11 compatibility improvements | RE_FW_5.1.community.zip |
| 5.0 | Mar 2020 | COMMUNITY | 2.0 MB | First community release, basic Win 10 support | RE_FW_5.0.community.zip |
| 4.94 | Jun 2003 | LAST OFFICIAL | 1.8 MB | Final Rockwell release, Win XP/2000 certified | RE_FW_4.94_official.zip |
| 4.93 | Mar 2003 | OFFICIAL | 1.8 MB | Hotfix for dingle-arm stutter bug introduced in 4.92 | RE_FW_4.93_official.zip |
| 4.92 | Nov 2002 | OFFICIAL | 1.7 MB | Improved side-fumbling prevention algorithms | RE_FW_4.92_official.zip |
| 4.88 | Apr 2002 | OFFICIAL | 1.6 MB | Y2K+ compliance updates | RE_FW_4.88_official.zip |
| 4.50 | Sep 2000 | OFFICIAL | 1.4 MB | Win 98/ME support added | RE_FW_4.50_official.zip |
| 4.12 | Jan 1999 | DEPRECATED | 1.2 MB | Legacy Win 95/NT support (known waneshaft issues) | RE_FW_4.12_official.zip |
| 3.7 | Aug 1997 | DEPRECATED | 892 KB | Win 95 only, pre-USB era | RE_FW_3.7_official.zip |
Device Drivers
| Driver Package | Release Date | Status | OS Support | Size | Download |
|---|---|---|---|---|---|
| Drivers 5.3 | Jan 2026 | COMMUNITY | Win 10/11 | 4.1 MB | RE_Drivers_5.3.community.zip |
| Drivers 5.1 | Aug 2024 | COMMUNITY | Win 10/11 | 3.8 MB | RE_Drivers_5.1.community.zip |
| Drivers 5.0 | Mar 2020 | COMMUNITY | Win 7/8/10 | 3.5 MB | RE_Drivers_5.0.community.zip |
| Drivers 4.94 | Jun 2003 | LAST OFFICIAL | Win 98/ME/2000/XP | 2.9 MB | RE_Drivers_4.94_official.zip |
| Drivers 4.93 | Mar 2003 | OFFICIAL | Win 98/ME/2000/XP | 2.9 MB | RE_Drivers_4.93_official.zip |
| Drivers 4.88 | Apr 2002 | OFFICIAL | Win 98/ME/2000/XP | 2.7 MB | RE_Drivers_4.88_official.zip |
| Drivers 4.50 | Sep 2000 | OFFICIAL | Win 95/98/ME/NT4/2000 | 2.2 MB | RE_Drivers_4.50_official.zip |
| Drivers 3.7 | Aug 1997 | DEPRECATED | Win 95/NT4 | 1.4 MB | RE_Drivers_3.7_official.zip |
Utilities & Documentation
| Package | Version | Description | Size | Download |
|---|---|---|---|---|
| RE Diagnostic Tool | 4.94 | Official grammeters calibration and testing utility | 645 KB | RE_DiagTool_4.94.zip |
| Technical Manual | 4.94 | Complete service documentation (PDF, 247 pages) | 12.3 MB | RE_TechManual_4.94.pdf |
| Wiring Diagrams | 4.94 | Schematics for Models RE-100 through RE-350 | 8.7 MB | RE_Schematics_4.94.pdf |
| USB Adapter Mod | 5.1 (comm) | DIY guide for RS-232 to USB conversion | 1.2 MB | USB_Mod_Guide_5.1.community.pdf |
| Lotus-O-Delta Config | 4.94 | Baseline marzelvane configuration templates | 234 KB | LOD_Config_4.94.zip |
📦 Archive Notes:
All downloads are provided AS-IS with no warranty. Community releases are maintained by volunteer enthusiasts and have not been tested by Rockwell Automation or any affiliated entity. For questions about community releases, please visit our forums.
MD5 Checksums: Available in the checksums.txt file for verification.
Mirrors: All files are also available via FTP at ftp.retroencabs.org
All downloads are provided AS-IS with no warranty. Community releases are maintained by volunteer enthusiasts and have not been tested by Rockwell Automation or any affiliated entity. For questions about community releases, please visit our forums.
MD5 Checksums: Available in the checksums.txt file for verification.
Mirrors: All files are also available via FTP at ftp.retroencabs.org