Offering 64K colors, Simatic MP 377 is available in 12 in. TFT display model as well as 15 and 19 in. touchscreen models to handle complex visualization needs. Units have 2 MB user memory, additional 12 MB of memory for larger projects, and nonvolatile alarm buffer without battery. Panels include RS485/422 interfaces for process connection, combined SD/multimedia card slot, one CF card slot, 2 USB interfaces, and 2 Ethernet RJ45 interfaces.