CPU 410-5H for Redundant S7-400 Systems
The Siemens 6ES7410-5HX08-4AB0 is a CPU 410-5H for the S7-400 family, designed for fault-tolerant and high-availability automation systems. It runs a 450 MHz multi-processor system and supports UDP communication via its integrated PROFINET interface and loadable function blocks, per the specification. The CPU carries ATEX II 3G Ex ec IIC T4 Gc certification, confirming it is approved for installation in Zone 2 gas atmospheres where increased safety (Ex ec) is required. This makes it suitable for process industry applications such as chemical or oil & gas facilities where combustible gases may be present. Two integrated PROFINET interfaces are provided, each supporting PROFINET IO RT/IRT, S7 routing, and autocrossing. The unit also includes a PROFIBUS DP interface for legacy fieldbus integration, with DPV1 capability for cyclic and acyclic data exchange.
Key Specifications for Panel Integration
The module occupies a single-width slot (50 mm wide) in the S7-400 rack, with a depth of 219 mm and height of 290 mm. It is rated for an operating temperature range of 0 °C to 70 °C, which covers most industrial enclosure environments without forced cooling. The CPU supports up to 8,000 diagnostic elements simultaneously active, with a total diagnostic buffer capacity of 3,200 entries. System log data can be transmitted via TCP to up to 4 receivers, aiding remote fault analysis. For process data handling, the CPU manages up to 16 kbyte of process input data and 16 kbyte of process output data, with a maximum of 8 kbyte each for PROFIBUS DP. The send cycle time can be set as low as 1 ms for high-speed control loops.