20 檢測偶發(fā)的錯誤

1、檢測偶發(fā)的錯誤SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.1Information and Training Center Knowledge for Automation顯示CPU信息SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.2Information and Training Center Knowledge for Automation在診斷緩沖器中寫入用戶信息CPU節(jié)點SFC 52

2、 SEND = TRUE發(fā)送緩沖器12異步地向用戶程序發(fā)送 如：PG, OP診斷緩沖器SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.3Information and Training Center Knowledge for Automation配置用戶自己的文本信息SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.4Information and Training Center Knowledg

3、e for Automation調(diào)用SFC 52Network 2: User message when limit value exceededCMPR#analog value_ normalizedIN1M 90.1PSFC 52M 0.1=1M 0.1SENDW#16#A901EVENTNRET_VAL#error_sfc52INFO 1#dummy#analog value_ normalizedENIN25.000000e+003SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.5EN

4、OINFO 2Information and Training Center Knowledge for AutomationSFC 52 中EVENTN 參數(shù)的結(jié)構(gòu)EVENTN0123456789101112131415種類特征號種類保留以備將來擴展C.F利用信息配置功能定義的自由文本A.B的標準文本（見標準和系統(tǒng)功能手冊）1.9號特征號可以連續(xù)從1 到 255到來的離去的內(nèi)部錯誤外部錯誤的特征，例如：Bit 8= “1” -Bit 8= “0” -Bit 10= “1” -Bit 11= “1” -針對不同定義在一個種類中，SIMATIC S7Siemens AG 2000. All ri

5、ghts reserved.Date:2018/10/9File:SSP2_8C.6Information and Training Center Knowledge for Automation具有診斷功能的模塊具有診斷功能模塊的參數(shù)配置：. 當(dāng)錯誤出現(xiàn)時，觸發(fā)一個診斷中斷 OB 82SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.7Information and Training Center Knowledge for Automation在SIMATIC管理器中顯示硬件診斷信息2xSIM

6、ATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.8Information and Training Center Knowledge for Automation練習(xí)8.1: 顯示診斷信息SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.9Information and Training Center Knowledge for Automation練習(xí)8.2: 輸出用戶信息*EN*SENDRET_VAL

7、EVENTNINFO1INFO2SFC 52?TRUE W#16#9101MW 54MD 56MW 52*在LAD方式下在 EN 端必須連接一個觸點SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.10Information and Training Center Knowledge for Automation練習(xí)8.3: 使能診斷中斷并仿真硬件錯誤序號步驟結(jié)果12345 利用硬件組態(tài)工具在一個模擬量模塊上使能診斷中斷允許硬件診斷將組態(tài)下裝到CPU拆除模擬量模塊的前連接器“SF”燈點亮指示硬件故

8、障打開硬件診斷工具顯示在線的系統(tǒng)配置確定故障原因顯示信息“Power supply failure”，表明故障原因為電源故障。SIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.11Information and Training Center Knowledge for Automation練習(xí)8.4: 評價錯誤處理OB的啟動信息OB 122 中評價啟動信息的示例LOB122_SW_FLT/Identifier read-only or write-only accessLB#16#42/Iden

9、tifier for read-only access=I/Compare for sameness=M 122.0/Auxiliary memory markerLOB122_MEM_ADDR/Address of module, that triggered the errorL352/Address of analog module (Version A)=I/Evaluation, if error from analog module=M 122.1/Auxiliary memory markerSIMATIC S7Siemens AG 2000. All rights reserved.Date:2018/10/9File:SSP2_8C.12Information and Training Center Knowledge for Automation練習(xí)8.5: 評價一個電池錯誤步驟操作結(jié)果321 從CPU上取下后備電池錯誤處理塊 OB 81被調(diào)用檢查輸出Q 5.7是否閃爍它可能不閃爍發(fā)