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.