Firmware Release Notes SW01800-1.4.3.0 Supported products: Z-KEY-0 (Rev. E0) Z-KEY-0 (Rev. F0) Z-KEY-0 (Rev. F1) R-KEY-LT (Rev. C0) R-KEY-LT (Rev. D0) R-KEY-LT (Rev. D1) Z-KEY-2ETH (Rev. B0) FIX: -fix Modbus Serial to Ethernet mode -fix Serial device mode -fix 64-bit TAG type -fix connections to Modbus server NEW: -New Added agent master mode (BETA)