The 6SY7000-0AC34 is a Simatic S7-400 Series Module by Siemens. It is a Universal Processor Module and designed to be used in industrial control systems. This Module features an Intel Pentium 3 processor with a 70 MHz clock, 2MB program and 2MB data Memory, and 128KB Battery backed memory. It is a remotely hot-swappable, 32-bit Modular centralized processor of the S7-400 Series. It has 5 Ethernet ports and 10 DI/8 DO, 4 Interrupt channels, and 64KB EEPROM for user and system data. The 6SY7000-0AC34 is a reliable intelligent Control Component for all types of applications. It provides a versatile platform for the development of numerous types of control solutions.