CPU停机故障.ppt

CPU停机故障 .pptDate: 2017-1-16 File: SSP2_6C. 1 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 检测导致 CPU 停机的故障 CPU Date: 2017-1-16 File: SSP2_6C. 2 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 系统诊断概述 CPU I/Q 模块 CPU 诊断检查系统错误程序诊断检查错误诊断中断错误 OB 诊断缓冲区系统状态表诊断信息可诊断的模板检查错误并产生一个诊断中断 Date: 2017-1-16 File: SSP2_6C. 3 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 调用“模块信息”工具 Date: 2017-1-16 File: SSP2_6C. 4 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 模块信息: “诊断缓冲器”选项 Date: 2017-1-16 File: SSP2_6C. 5 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 解释错误信息 Date: 2017-1-16 File: SSP2_6C. 6 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 打开一个有错误的块 Date: 2017-1-16 File: SSP2_6C. 7 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 利用堆栈诊断故障程序结构包含错误的块错误位置在 I Stack (中断堆栈)中可以看到当中断发生时,累加器、寄存器、状态字等的内容在L Stack (局部堆栈)中可以看到当中断发生时,临时变量的内容错误位置通过 B Stack (块堆栈)可以看到发生错误之前曾执行过的块 Date: 2017-1-16 File: SSP2_6C. 8 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 块堆栈 Date: 2017-1-16 File: SSP2_6C. 9 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 中断堆栈 Date: 2017-1-16 File: SSP2_6C. 10 SIMATIC S7 Siemens AG 2000. All rights reserved. Information and Training Center Knowledge for Automation 局部堆栈