Chapter 2. CPU Features & SpecificationsGFK-2222AD April 2018 192.1.2 Features Shared by Certain PACSystems CPU Models▪ Rx3i CPE302, CPE305, CPE310, CPE330 and CPE400 offer battery-less retention of user memorywhen each is connected to its compatible Energy Pack.▪ RSTi-EP CPE100/CPE115 offers battery-less retention of user memory with the support ofinternal super capacitors.▪ All prior RX3i models have battery-backed RAM for user data (program, configuration, registerdata, and symbolic variable) storage and clocks.▪ Rx3i CPE302, CPE305, CPE310, CPE330 and CPE400 and RSTi-EP CPE100/CPE115 models havecoin battery backup for their real-time clocks (elapsed time clock).▪ RX3i CPE302, CPE305, CPE310 and CPE330 models have the ability to upload and download datafrom a Removable Data Storage Device (RDSD). This feature is not yet available on RX3i CPE400and RSTi-EP CPE100/CPE115.▪ RX3i CPE302, CPE305, CPE310, CPE330 , CPE400 and RSTi-EP CPE100/CPE115 models supportOPC-UA..▪ RX3i CPE302, CPE305, CPE310, CPE330, CPE400 and RSTi-EP CPE100/CPE115 models supportEthernet Global Data Class 1.▪ RX3i CPE302, CPE305, CPE310, CPE330, and CPE400 models support Simple Network TimeProtocol (SNTP) Client, Coordinated Universal Time (UTC), and Daylight Savings Time (DST).▪ RX3i CPE330 and CPE400 and RSTi-EP CPE100/CPE115 permit LAN2 to be configured as anEmbedded PROFINET Controller. Refer to Section 2.1.6, Embedded PROFINET Controller.▪ RX3i CPE302, CPE305, CPE310, CPE330, and CPE400 models monitor the internal temperatureof the CPU hardware. CPU behavior under these conditions is documented in Section 2.1.9.For a comparative review of CPU features, refer to RX3i CPU Features and Specifications, RX7i CPUFeatures and Specifications and RSTi-EP CPU Features and Specifications. Note that each specific featuremay require a corresponding firmware version of the CPU firmware.