Issue
How to locate and download the latest firmware image versions for Sigma Controllers and Integration Controllers (ICs).
Product Line
Satchwell Sigma
Environment
- 3.46.57
- 3.46.66
- 3.46.80
- 3.46.89
- 3.46.100
- 3.46.104
- 3.46.105
- 3.46.106
- 3.46.107
- 3.46.108
- 3.46.110
- 3.46.111
- 3.46.131
Cause
Users may need to identify and download the correct firmware image version for their specific Sigma hardware (e.g., UNC, IC, IC3) to ensure compatibility and optimal performance.
Resolution
Refer to the table below for the latest firmware versions and associated release notes for each Sigma controller and integration controller type:
| Device | Firmware Version | Release Note |
| Sigma UNC (V53) | 6b | UNC596 6.b – Release Note |
| Sigma UNC3 (ARM7) | 1.p.0 | UNC3 1.p.0 – Release Note |
| UNC 532 (V25) | 6b | UNC532 6.b – Release Note |
| IC-Modbus | V5h | IC-Modbus v5h – Release Note |
| IC3 Modbus | 1.n.2 | IC3 Modbus – Release Note |
| IC SNP | 5d | IC-SNP v5d – Release Note |
| IC3 SNP | 1.g.1 | Sigma 4.05 Firmware Supplement No specific release note available |
| IC York | V3e (Not available for download) | IC-York v3e – Release Note |
| IC3 York | 1.d.0 | IC3 York 1.d.0 – Release Note |
| IC3 Unifact | 1.d.0 | IC3 Unifact (RTC) – Release Note |
| IC3 Unifact Pro | 5h | IC3 Unifact Pro 5h – Release Note |
🔗 Note: Some firmware files or release notes may not be available for direct download. Please contact Schneider Electric support for assistance if needed.
