This product is part of the Harmony SCU range, an offer of HMI controllers from 3.5 to 5.7inch colour screens. This rear module controller panel provides 8/8 digital I/Os and 4/2 analogue I/Os. It supports Modbus, CANopen and Modbus TCP/IP downloadable protocols. It is designed with internal data storage of 128kB FRAM, flash NAND of 128MB and application run DRAM of 128MB. It is a controller panel with a rated supply voltage of 24V DC, supplied by external source with the limit ranges from 20.4V to 28.8V DC. It is an IP20 (rear panel) / IP65 (front panel) and NEMA 4X rated product. The enclosure is made of PC/PBT. Its dimensions are 128mm (width) x 102mm (depth) x 50.65mm (height) and weighs 0.398kg. It is certified by CULus, CUL, GOST, C-Tick, CSA, KCC. It meets UL 508, FCC Class A, EN 61131-2, WEEE directive 2002/96/EC, CSA C22.2 No 213 Class I Division 2, ANSI/ISA 12-12-01, RoHS, RoHS China SJ/T 11363-2006, IEC 61000-6-2 standards. The integrated design of Harmony SCU delivers maximum functionality while keeping installation easy. Designed for small machines and simple processes control, its state-of-the-art display provides clear readability. The Harmony SCU (formerly known as Magelis SCU) is designed to operate with EcoStruxure Machine Expert. It offers functionality for control of small machines and simple processes, while saving up to 30% in installation and ownership costs.