1. SFB0 "CTU" SFB1 "CTD" SFB2 "CTUD" SFB4 "TON" SFB5 TOF 兼容IEC61131-3的計(jì)數(shù)和計(jì)時(shí)功能塊
2. SFB41 "CONT_C" SFB42 "CONT_S" SFB43 "PULSEGEN" 用于PID控制 41---連續(xù) 42---離散 43---用于將一個(gè)模擬量轉(zhuǎn)化為與之對(duì)應(yīng)的周期性開(kāi)關(guān)量脈沖信號(hào),該脈沖的 占空比與模擬量的數(shù)值大小成正比.
3. SFC0 "SET_CLK" SFC1 "READ_CLK" 用于讀寫(xiě)PLC中的系統(tǒng)時(shí)間
4. SFC14 "DPRD_DAT" SFC15 "DPWR_DAT" 用于讀寫(xiě)DP從站中的一致性數(shù)據(jù) 如:讀寫(xiě)用DP通訊的變頻器中的控制字
5. SFC20 "BLKMOV" SFC21 "FILL" 塊拷貝,塊填充
6. SFC46 "STP" SFC47 "WAIT" SFC46 使PLC進(jìn)入STOP狀態(tài),挺有用的:可以當(dāng)軟件陷阱,或利用上位控制PLC停機(jī)
7. SFC60 "GD_SND" SFC61 "GD_RCV" MPI的GD通訊
8.IEC Function Blocks FC22 "LIMIT" FC25 "MAX" FC27 "MIN" FC22 ---限幅輸出 FC25,FC27 --- 3個(gè)數(shù)比大小 9.PID Control Blocks FB41/42/43 同 SFB41 "CONT_C" SFB42 "CONT_S" SFB43 "PULSEGEN" FB58 "TCON_CP" FB59 "TCONT_S" 用于溫度控制PID
10.Ti-S7 Converting Blocks FC105 "SCALE" FC106 "UNSCALE" 模擬量輸入輸出的比例和數(shù)據(jù)類型轉(zhuǎn)換
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