Note on Occasional DI Failure at Power-On in iS Control Cabinets
Problem Description
Phenomenon: After the iS control cabinet is powered on, there is a small probability that the DI input fails and the external signal changes cannot be detected. 
Problem description: All control cabinets that use the IS3980S chip to detect inputs are affected. Input IOs detected by the IS3980S have a certain risk of failure.
Affected Range
Affected control cabinet types: iS control cabinet / iS control cabinet (CE), CSafety control cabinet
Affected firmware versions: 1.0.44-rc.3 (including this version) and earlier; 1.1.11-rc.1 (including this version) and earlier
Problem Resolution
If the affected control cabinet has a network connection, the firmware can be downloaded online and installed; without a network, the firmware can be downloaded via a PC (download address: https://download.aubo-robotics.cn/firmware/) and imported via a USB drive.
- Fixed firmware versions
v1.0 branch: 1.0.44-rc.4 and above (including this version)
v1.1 branch: 1.1.11-rc.2 and above (including this version)
Firmware upgrade steps
After the upgrade is complete, restart the control cabinet.