SIEMENS STEP7 間接尋址

1、Date:2022-3-6File:SSP2_03C.1SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.2SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation立即尋址的例子立即尋址的例子Date:2022-3-6File:SSP2_03C

2、.3SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation直接尋址的例子直接尋址的例子Date:2022-3-6File:SSP2_03C.4SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.5SIMATIC S7Siemens AG 200

3、0. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.6SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.7SIMATIC S7Siemens AG 2000. All rights reserved.Information and T

4、raining CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.8SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation存儲器間接尋址的例子存儲器間接尋址的例子L QBDBD 10 /將輸出字節(jié)裝入累加器1，輸出字節(jié)的地址指針在數(shù)據(jù)雙字DBD10 中/如果DBD10 的值為20000 0000 0000 0000 0000 0000 00100000，裝入的是QB4A MLD 4

5、/對存儲器位作“與”運算，地址指針在數(shù)據(jù)雙字LD4 中/如果LD4 的值為20000 0000 0000 0000 0000 0000 0010 0011，則是對M4.3 進行操作Date:2022-3-6File:SSP2_03C.9SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.10SIMATIC S7Siemens AG 2000. All rights reserved.Info

6、rmation and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.11SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.12SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge f

7、or Automation00Date:2022-3-6File:SSP2_03C.13SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.14SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation地址寄存器的裝入與傳送指令地址寄存器的裝入與傳

8、送指令可以不經(jīng)過累加器1，與地址寄存器AR1 和AR2 交換數(shù)據(jù)。下面是應(yīng)用實例：LAR1 DBD20 /將數(shù)據(jù)雙字DBD20 中的指針裝入AR1LAR2 LD180 /將局域數(shù)據(jù)雙字LD180 中的指針裝入AR2LAR1 P#M10.2 /將帶存儲區(qū)標(biāo)識符的32 位指針常數(shù)裝入AR1LAR2 P#24.0 /將不帶存儲區(qū)標(biāo)識符32 位指針常數(shù)裝入AR2TAR1 DBD20 /AR1 中的內(nèi)容傳送到數(shù)據(jù)雙字DBD20TAR2 MD24 /AR2 中的內(nèi)容傳送到存儲器雙字MD24Date:2022-3-6File:SSP2_03C.15SIMATIC S7Siemens AG 2000. All

9、 rights reserved.Information and Training CenterKnowledge for Automation寄存器間接尋址的例子寄存器間接尋址的例子指針常數(shù)P5.0 對應(yīng)的二進制數(shù)為20000 0000 0000 0000 00000000 0010 1000。L P#5.0 /將間接尋址的指針裝入累加器1LAR1 /將累加器1 中的內(nèi)容送到地址寄存器1A MAR1, P#2.3 /AR1 中的P#5.0 加偏移量P#2.3, 實際上是對M7.3 進行操作= QAR1, P#0.2 /邏輯運算的結(jié)果送Q5.2L DBWAR1, P#18.0 /將DBW23

10、裝入累加器1區(qū)域間間接尋址L P#M6.0 /將存儲器位M6.0 的雙字指針裝入累加器1LAR1 /將累加器1 中的內(nèi)容送到地址寄存器1T WAR1, P#50.0 /將累加器1 的內(nèi)容傳送到存儲器字MW56P#M6.0 對應(yīng)的二進制數(shù)為2#1000 0011 0000 0000 0000 000000110000。因為地址指針P#M6.0 中已經(jīng)包含有區(qū)域信息，使用間接尋址的指令T WAR1, P#50中沒有必要再用地址標(biāo)識符M。Date:2022-3-6File:SSP2_03C.16SIMATIC S7Siemens AG 2000. All rights reserved.Inform

11、ation and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.17SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.18SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for

12、 AutomationDate:2022-3-6File:SSP2_03C.19SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.20SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.

13、21SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.22SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.23SIMATIC S7Siemens AG 2000. All right

14、s reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.24SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.25SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training Ce

15、nterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.26SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.27SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-

16、3-6File:SSP2_03C.28SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.29SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.30SIMATIC S7Siemens A

17、G 2000. All rights reserved.Information and Training CenterKnowledge for AutomationDate:2022-3-6File:SSP2_03C.31SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation雙指針使用實例雙指針使用實例配方號配方號數(shù)據(jù)長度數(shù)據(jù)長度配方源區(qū)數(shù)據(jù)塊配方源區(qū)數(shù)據(jù)塊目標(biāo)目標(biāo)起始地址起始地址讀出配方目標(biāo)區(qū)數(shù)據(jù)塊讀出配方目標(biāo)區(qū)數(shù)據(jù)塊Date:2022-3-

18、6File:SSP2_03C.32SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation雙指針使用實例雙指針使用實例Date:2022-3-6File:SSP2_03C.33SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation雙指針使用實例雙指針使用實例進棧數(shù)據(jù)進棧數(shù)據(jù)堆棧區(qū)長度堆棧區(qū)長度堆棧區(qū)數(shù)

19、據(jù)塊堆棧區(qū)數(shù)據(jù)塊堆棧區(qū)清零標(biāo)志堆棧區(qū)清零標(biāo)志堆棧區(qū)數(shù)據(jù)塊堆棧區(qū)數(shù)據(jù)塊執(zhí)行條件執(zhí)行條件Date:2022-3-6File:SSP2_03C.34SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation雙指針使用實例雙指針使用實例Date:2022-3-6File:SSP2_03C.35SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation雙指針使用實例雙指針使用實例Date:2022-3-6File:SSP2_03C.36SIMATIC S7Siemens AG 2000. All rights reserved.Information and Training CenterKnowledge for Automation實驗題實驗題要要求編制數(shù)據(jù)判斷查詢功能，輸入數(shù)據(jù)變量求編制數(shù)據(jù)判斷查詢功能