HIMax Safety Manual - Tuv-fs.com

10 User program HIMax10.2.10 Checklist for Creating a User ProgramTo comply with all safety-related aspects during the programming phase, HIMArecommends using the following checklist prior to and after loading a new or modifiedprogram.CompanyHIMaxChecklist for Creating a User ProgramV.1.0LocationObjectiveFile/ArchiveChecks Yes No RemarkWhile creating the program / Before modifying the programAre the user program and PES configurations based on asafety analysis? Are programming guidelines usedwhile creating the user program? Are functionally independent parts of the programencapsulated in functions and function blocks? Are only safe signals used for all safety functions? Does each safety-related signal source properly reach theuser program (also through communication)? Is each safety-related signal drain properly written (alsothrough communication)? After modifying the program – Before loading the programDid a person not involved in creating the program check thatthe user program complies with the mandatory system specifications?Is the test result documented and released (date/signature)? Was the user program compiled twice and were the tworesulting configuration CRCs compared upon completion? Has a copy of the entire project been archived? After modifying the program – After loading the programWas a sufficient number of tests performed for all safetyrelevantlogic operations (including I/O) and for all mathematic operations?Was all force information reset before starting safe operation? Do the enable switches "Readonly in Run" and "Reloaddeactivation" correspond to the settings for the maximum / defined protection?Were the versions (CRCs) of the operating systems of themodules officially approved and certified by the TÜV? Page 58 of 70HI 801 003 D Rev.2.0