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具有诊断功能的I/O模块如果在组态时启用了诊断中断功能,出现故障时将通过产生诊断中断来报告事件,CPU的操作系统将自动调用处理诊断中断的组织块OB82。1组态信号模块的诊断功能本讲继续使用第2讲中名为“从站诊断”的项目,DP主站为CPU315-2DP,3号DP从站为ET200M。ET200M的AI、AO模块均有诊断功能。选中硬件组态视图中的3号从站ET 200M,双击7号槽的2AO模块,在属性对话框的“输出”
I / O modules with diagnostic functions If the diagnostic interrupt function is enabled during configuration, an event is reported by generating a diagnostic interrupt in the event of a fault and the CPU’s operating system automatically calls the organization block that handles the diagnostic interrupts OB82.1 Configuration signal Module Diagnostic Functions This talk continues with the entry titled “Slave Diagnostics” in lesson 2, with the DP master CPU315-2DP and the DP DP3 slave ET200M. ET200M AI, AO modules have diagnostic capabilities. Select the No. 3 slave ET 200M in the hardware configuration view and double-click the 2AO module No. 7 in the Properties dialog box “Output”