5.5585960Chapter 6 Administrative Commands........................6364Description................................6566PTOSetParam Function Block.................................68Programming the PTOGetParam or PTOSetParam Function.........706.2 Diagnostics...........71PTOGetDiag Function Block..................................72Programming the PTOGetDiag Function Block.....74Part Ill Pulse Width Modulation and Frequency Generator75Chapter 7 PWM/FG Generalities.............................7778Synchronization and Enable Function...........................79Chapter 8 Frequency Generator (FG)........................8182Frequency Generator Configuration ...........................83FrequencyGenerator Function Block............................86Programming the FrequencyGenerator Function Block..............88Chapter 9 Pulse Width Modulation (PWM)....................91929497Programming the PWM Function Block..........................99101Appendix A General Information..............................103....104General Information on Administrative and Motion Function BlockManagement............105Appendix B Function and Function Block Representation107Differences Between a Function and a Function Block..............108How to Use a Function or a Function Block in IL Language..........109How to Use a Function or a Function Block in ST Language.........1124E티00000000363 10/2010Appendix C Data Unit Types.................................115PTO_DIRECTION:Type for Direction of a Move on PTO Axis Variable..116PTO_PARAMETER_TYPE:Type for Parameter of PTO axis to Set or to117PTO_REF:Type for PTO Reference Value Variable................118PTOPWM_ERR_TYPE:Type for Detected Error Variable which can119121Index149EI0000000036310/201056E티00000000363 10/2010Safety InformationImportant InformationNOTICERead these instructions carefully,and look at the equipment to bee familiar withthe device before trying to install,operate,or maintain it.The following specialmessages may appear throughout this documentation or on the equipment to warnof potential hazards or to call attention to information that clarifies or simplifies aprocedure.The addition of this symbol to a Danger or Warning safety labelindicates that an electrical hazard exists,which will result in personalinjury if the instructions are not followed.This is the safety alert symbol.It is used to alert you to potentialpersonal injury hazards.Obey all safety messages that follow thissymbol to avoid possible injury or death.A DANGERDANGER indicates an imminently hazardous situation which,if not avoided,will result in death or serious injury.A WARNINGWARNING indicates a potentially hazardous situation which,if not avoided,canresult in death or serious injury.EI0000000036310/20107CAUTIONCAUTION indicates a potentially hazardous situation which,if not avoided,canresult in minor or moderate injury.CAUTIONCAUTION,used without the safety alert symbol,indicates a potentiallyhazardous situation which,if not avoided,can result in equipment damagePLEASE NOTEElectrical equipment should be installed,operated,serviced,and maintained only byqualified personnel.No responsibility is assumed by Schneider Electric for anyconsequences arising out of the use of this material.A qualified person is one who has skills and knowledge related to the constructionand operation of electrical equipment and the installation,and has received safetytraining to recognize and avoid the hazards involved.8E티00000000363 10/2010About the BookiAt a GlanceDocument ScopeThis documentation will acquaint you with the pulse train output (PTO),pulse widthmodulation(PWM)and Frequency Generator(FG)output functions offered withinthe M238 controller.This documentation describes the data types and functions of the M238 PTO/PWMlibrary.In order to use this manual,you must:.Have a thorough understanding of the M238,including its design,functionality,and implementation within control systems..Be proficient in the use of the following IEC 61131-3 PLC programminglanguages:.Function Block Diagram (FBD)·Ladder Diagram(LD)Structured Text(ST)Instruction List(IL)Sequential Function Chart(SFC)Validity NoteThis document has been updated with the release of SoMachine V2.0.Related DocumentsTitle of DocumentationReference NumberM238 Logic Controller Programming GuideE티00000000384(ENG);E1O0000000385(FRE);E1O0000000386(GER);E1O0000000387(ITA);E1O0000000388(SPA);EIO0000000389(CHS)EI0000000036310/20109You can download these technical publications and other technical information fromour website at www.schneider-electric..Product Related InformationAWARNINGLOSS OF CONTROLThe designer of any control scheme must consider the potential failure modesof control paths and,for certain critical control functions,provide a means toachieve a safe state during and after a path failure.Examples of critical controlfunctions are emergency stop and overtravel stop,power outage and restart.Separate or redundant control paths must be provided for critical controlfunctions.System control paths may include munication links.Consideration must begiven to the implications of unanticipated transmission delays or failures of thelink..Observe all accident prevention regulations and local safety guidelines.1Each implementation of this equipment must be individually and thoroughlytested for proper operation before being placed into service.Failure to follow these instructions can result in death,serious injury,orequipment damage.1 For additional information,refer to NEMA ICS 1.1(latest edition),"SafetyGuidelines for the Application,Installation,and Maintenance of Solid State Control"and to NEMA ICS 7.1 (latest edition),"Safety Standards for Construction and Guidefor Selection,Installation and Operation of Adjustable-Speed Drive Systems"or theirequivalent governing your particular location.AWARNINGUNINTENDED EQUIPMENT OPERATIONOnly use software approved by Schneider Electric for use with this equipment.Update your application program every time you change the physical hardwareconfiguration.Failure to follow these instructions can result in death,serious injury,orequipment damage.User CommentsWe wele your ments about this document.You can reach us by e-mail attechm schneider-electric..10E目IO0000000363102010M238 Embedded FunctionsEI0000000036310/201011M238 Embedded Functions12E티00000000363 10/2010