RIEVTECH STUDIO SOFTWARE MANUAL LW: Aninternal "Word Register" in HMI. The data is lostwhen the power is off.The register address range is 0 - 799,999. RW: An internal "Word Register" in HMI. The data can be saved if power is off. The register address range is 0 - 524288. SRW : A special internal "Word Register" in HMI.The register address range is 0 - 11023. You can click the "System Register" button and open the "System Special Function Register" to get the specific function of each SRW register when you use the component such as “ Numeric Display ” . For example, SRW0 ~ 7 saves the system time. The “ Description ” introduces the function of the selected register. 575