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———————小楊期待您的咨詢

“C_DIAG”診斷當前連接狀態......................................................
13-18
13.7 使用SFC103 “DP_TOPOL”識別DP主站系統的總線拓撲..............................
13-23
14 用于更新過程映像和處理位域的SFC和SFB 14-1
14.1 使用SFC26
“UPDAT_PI”更新過程映像輸入表................................................
14-1
14.2 使用SFC27
“UPDAT_PO”更新過程映像輸出表..............................................
14-3
14.3 使用SFC79
“SET”在I/O區域中設置位域.........................................................
14-5
14.4 使用SFC 126 “SYNC_PI”在同步循環中更新過程映像分 區輸入表................. 14-6
14.5 使用SFC 127 “ISO_PO”在同步循環中更新過程映像分區輸出表.................... 14-8
14.6 使用SFC80
“RSET”復位I/O區域中的位域.....................................................
14-10
14.7 使用SFB 32
“DRUM”實現一個操作序列.......................................................
14-11
目錄
用于S7-300/400系統和標準功能的系統軟件
xii A5E00446508-01
15 用于尋址模塊的系統功能 15-1
15.1 使用SFC5
“GADR_LGC”查詢模塊的邏輯基址................................................
15-1
15.2 使用SFC49 “LGC_GADR”查詢屬于一個邏輯地址的模塊 插槽....................... 15-3
15.3 使用SFC50
“RD_LGADR”查詢模塊的所有邏輯地址...................................... 15-5
16 用于分布式I/O的SFC 16-1
16.1 使用SFC7
“DP_PRAL”在DP主站上觸發硬件中斷.......................................... 16-1
16.2 用SFC11
“DPSYC_FR”同步DP從站組...........................................................
16-4
16.3 用SFC12
“D_ACT_DP”激活和取消激活DP從站...........................................
16-10
16.4 用SFC13 “DPNRM_DG”讀取DP從站的診斷數據(從站診斷) ........................
16-14
16.5 使用SFC14 “DPRD_DAT”讀取DP標準從站的連續數據................................
16-18
16.6 使用SFC15 “DPWR_DAT”將連續數據寫入到DP標準從站...........................
16-20
17 用于全局數據通訊的SFC 17-1
17.1 使用SFC60
“GD_SND”發送一個GD信息包....................................................
17-1
17.2 通過SFC61
“GD_RCV”編程接受已接收到的GD信息包.................................. 17-4
18 通訊和S7基本通訊的概述 18-1
18.1
S7通訊塊和S7基本通訊塊之間的差別............................................................
18-1
18.2
數據的一致性..................................................................................................
18-4
18.3
S7通訊塊概述.................................................................................................
18-6
18.4
用于S7基本通訊的功能塊總覽........................................................................
18-8
19 S7通訊 19-1
19.1
用于S7通訊的SFB/FB和SFC/FC的公用參數..................................................
19-1
19.2
用于組態的S7連接的SFB啟動例行程序..........................................................
19-5
19.3
SFB對故障如何反應........................................................................................
19-7
19.4
通過SFB8/FB8“USEND”進行無協調的數據發送.............................................
19-9
19.5
通過SFB/FB9“URCV”進行無協調的數據接收...............................................
19-12

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