基于参数设置的PLC用户报警功能与应用

摘要

数控机床的输入输出功能由PLC程序来控制，其信号状态可作为故障诊断的依据，而PLC用户报警功能可以为机床用户提供更直接有效的诊断方法。文章详述了FANUC数控系统PLC用户报警功能的编程方法和应用，并针对系统的参数设置，利用窗口读取功能指令，设计与建立了相应的PLC用户报警程序并上机调试。该程序可为参数设置问题所导致的故障提供有效的诊断方法，为进一步完善数控机床的报警信息提供理论依据。%The input/output function of the CNC machine is controlled by PLC program and the signal status can be used as the basis of the fault diagnosis. The PLC user alarm function provides direct and effective diagnostic approach for operator. This paper introduces the PLC user alarm function of the FANUC CNC system. A newPLC user alarm program is designed and established with “WINDR” function code for the parameters configure. This PLC program can provide effective diagnostic method for unreasonable parameters configure and make further improvement on the user alarm function of the CNC machine.