Annex H Standard documents the requirements for electronic controls. It contains detailed tests and diagnostic methods to ensure the safe operation of embedded control hardware and software for household appliances. IEC6. 07. 30 Annex H has 3 software classifications for automatic electronic controls Class A Not intended to be relied upon for the safety of the equipment. Examples humidity controls, lighting controls, timers. Class B Intended to prevent unsafe operation of the controlled equipment. Examples thermal cut offs and door locks for laundry equipment. Update Squad Fifa 09 Pc Torrent. Class C Intended to prevent special hazards, like explosion of the controlled equipment. Example automatic burner controls, gas fired controlled dryer. For Microcontrollers, the IEC6. Annex H explains the detail of the tests and diagnostic methods to ensure safe operation of embedded control hardware and software for household appliances. Why Class B From Oct 2. Europe have to comply with IEC6. Class B applies for the majority of home appliances, e. How does Infineon support Class BFor its XMC and XC8. Infineon is providing Software Library routines, which can be used for microcontroller internal supervisory functions and for self diagnostics. Furthermore this Software Library routines fulfill the requirements according to the Class B standard and were approved by VDE reference number 5. What is the customer benefit The safety features of the microcontrollers offer significant competitive advantages. In particular, the embedded flash module with its hardware error correction ECC, and the invariable memory tests which are done without the need to implement the time consuming CRC memory checker routines. The ECC can correct single bit error and can inherently signal such events to the application with every flash access. This increases CPU performance, frees up memory space and makes user software easier and safer. The microcontrollers come with a sophisticated clock supervisory feature. The clock control with its on chip oscillator and PLL, can detect clock faults such as the loss of lock, or double and half frequency. If clock failure occurs, the system is automatically brought into a safe state and a signal is sent to the event application. The features described make an application safer without additional cost and overhead. How to implement A dedicated Software Library provides self test routines which the user can call at system startup or periodically at system run time. A quick start step by step testing guide on Software Library will be provided to the user. Download Class B Library.