1、PLC限制中央空調程序說明程序的設計關鍵是通過監測外部溫度、蒸汽壓力等狀態調節幾個閥門蒸汽閥、冷 水閥、溶液閥以及溶劑泵、冷水泵等.巧妙之處是運用可逆計數器來記錄蒸汽閥和溶 液閥的開度,這樣減少了許多外部設備,使系統更趨簡單實用.PLC限制中央空調程序I/O注釋I/O程序中名稱意義1 X0ZQFK.F蒸汽閥開反應X1RUN開機運行X2STOP停機X3AUTO自動調節檔X4MUTE警鈴靜音X5TX>TS水溫低X6PQ<PL氣壓過低X7RYFK.F溶液閥開反應X10RYFG.F溶液閥關反應X11OLLJB冷劑泵過載X12OLFSB發生泵過載X13PQ>PH氣壓過高X14HOTGF

2、高發過熱X15ZQFG.F蒸汽閥關反應X16JJIN結晶X17LSDW冷流水低溫X20LJSDW冷劑水低溫X21LS BUZU冷流水缺乏X22LQS BUZU冷卻水缺乏X23XSQDW吸收器低溫X24YCH液位超高X25YH液位高X26-YL液位低X27-YCL液位超低I/O程序中名稱意義Y0BELL警鈴Y1RYFK溶液閥開Y2RYFG溶液閥關Y3ZQFK蒸汽閥開Y4HAND-ZQF手動蒸汽閥關Y5ZQFG蒸汽閥關Y6LQSFK冷卻水閥開Y7LQSFG冷卻水閥關Y10DSTOP停止指示燈Y11DCOOL制冷指示燈Y12DXISI稀釋指示燈Y13DAUTO自動指示燈Y14HAND-BENG手動泵

3、Y15RYB溶液泵Y16LJB冷劑泵Y17FSB發生泵I/O程序中名稱意義M0AUTO RUN自動運行M1HAND RUN手動運行M2ZLEN制冷M3ZLCU制冷初期M4XISI稀釋M5WAIT STOP待機M7NLTJKM8ERROR故障M10FSBT發生泵停止M23HAVE XSQDW吸收器低溫M30READY準備好M50QFK.F蒸汽閥開M51QFG.F蒸汽閥關M52RFK.F溶液閥開M53RFG.F溶液閥關M54LFK.F冷水閥開M55LFG.F冷水閥關M100QJZK蒸汽閥禁止開M101Q1G蒸汽閥開1級M102Q2K蒸汽閥開2級M103Q3K蒸汽閥開3級M104Q1G1蒸汽閥關1級

4、M105Q3K1蒸汽閥開3級M106Q1G2蒸汽閥關1級M107QCXG蒸汽閥持續關M108QG蒸汽閥關閉M109QFINI蒸汽閥初始化M110R2K溶液閥開2級M111R1K溶液閥開1級M112RJZ溶液閥靜止M113R1G溶液閥關1級M114R2G溶液閥關2級M115RG溶液閥關閉M119RFINI溶液閥初始化M120L1G冷水閥關1級M121L1K冷水閥開1級M122LJZ冷水閥靜止M123L1K-100%冷水閥全開M200QF<25蒸汽閥開度25%M201QF25蒸汽閥開度=25%M202QF>25蒸汽閥開度25%M203QF<50蒸汽閥開度50%M204QF50蒸汽

5、閥開度=50%M205QF>50蒸汽閥開度50%M206QF<75蒸汽閥開度75%M207QF75.蒸汽閥開度=75%M208QF>75蒸汽閥開度75%M210RF<25溶液閥開度25%M211RF25溶液閥開度=25%M212RF>25溶液閥開度25%M213RF<50溶液閥開度50%M214RF50溶液閥開度=50%M215RF>50溶液閥開度50%M216RF<75溶液閥開度75%M217RF75.溶液閥開度=75%M218RF>75溶液閥開度75%M220LF<25冷水閥開度25%M221LF25冷水閥開度=25%M222LF

6、>25冷水閥開度25%M223LF<50冷水閥開度50%M224LF50冷水閥開度=50%M225LF>50冷水閥開度50%M226LF<75冷水閥開度75%M227LF75冷水閥開度=75%M228LF>75冷水閥開度75%M230QF>0蒸汽閥開度0M231QF=0蒸汽閥開度=0M232QF<0蒸汽閥開度0M233QF<100蒸汽閥開度100%M234QF100蒸汽閥開度=100%M235QF>100蒸汽閥開度100%M240RF>0溶液閥開度0M241RF=0溶液閥開度=0M242RF<0溶液閥開度0M243RF<1

7、00溶液閥開度100%M244RF100溶液閥開度=100%M245RF>100溶液閥開度100%M250LF>0冷水閥開度0M251LF=0冷水閥開度=0M252LF<0冷水閥開度0M253LF<100冷水閥開度100%M254LF100冷水閥開度=100%M255LF>100冷水閥開度100%M500ONCE只運行一次標志T50INI TIME初始化時間C220ZQF TIME蒸汽閥時間開度C221RYF TIME蒸汽閥時間開度D20XISI TIME稀釋時間D200QF25 TIME蒸汽閥25%勺時間量D202QF50 TIME蒸汽閥50%勺時間量D204Q

8、F75 TIME蒸汽閥75%勺時間量D206QF100 TIME蒸汽閥全開的時間量D210RF25 TIME溶液閥25%勺時間量D212RF50 TIME溶液閥50%勺時間量D214RF75 TIME溶液閥75%勺時間量D216RF100 TIME溶液閥全開的時間量D230PIAN CA偏差量設定PLC限制中央空調程序分段源代碼機器第一次運行時自動設置閥門參數:|M500DMOV 80ONCE |+.DMOV 160+DMOV 240+.DMOV 320|D200 + QF25 | TIME | | | |D202 + QF50 | TIME | | | |D204 + QF75 | TIME

9、 | | | |D206 +|QF100 |TIME |I|K|+DMOV 80D210 +|RF25 |TIME |K|+DMOV 160D212 +|RF50 |TIME |K|+DMOV 240D214 +|RF75 |TIME |K|+DMOV 320D216 +|RF100|TIME |K|+DMOV 5D230 +|PIAN |CA|+SETM500 +ONCE | | | |開機時將根據設置的偏移量計算出閥門上下限:|M8000|83 +-I I-+DSUB D200D230D100 +|QF25PIAN| | 1TIMECA| |1|+DADD D200D2301|D102 +

10、|QF25PIAN| | 1TIMECA| | 1|+DSUB D202D2301|D104 +|QF50PIAN| | 1TIMECA| |1|+DADD D202D2301| D106 +|QF50PIAN| | 1TIMECA| | 1|+DSUB D204D2301|D108 +|QF75PIAN| | 1TIMECA| | 11|+DADD D204D2301 |D110 +|QF75PIAN| |1TIMECA| |1|+DSUB D206D2301 |D112 +|QF100PIAN| | 1TIMECA| |1|+DADD D206D2301|D114 +|QF100PIAN|

11、 |TIMECA| |M8000| |188 +-I I-+DSUB D210D230D120 +|RF25PIAN|11TIMECA| |1|+DADD D210D2301 |D122 +|RF25PIAN|11TIMECA| |1|+DSUB D212D230|D124 +|RF50PIAN|11TIMECA| | 1|+DADD D212D2301|D126 +|RF50PIAN|11TIMECA| | 1|+DSUB D214D2301|D128 +|RF75PIAN|11TIMECA| |1|+DADD D214D2301|D130 +|RF75PIAN|11TIMECA| | 1|

12、+DSUB D216D2301 |D132 +|RF100PIAN|TIMECA| | |DADD D216D230D134 +RF100PIAN|TIMECA|+預熱|M30K100 |293 +-I/I-+(T50 )+|READY|INI|TIME |+RSTC220 +|ZQF |TIME |+RSTC221 +|RYF |TIME |M109 |+( )-+|QFINI |M119 |+( )-+|RFINI |T50|+-I ISETM30 +INIREADY |TIME進入自動狀態I|X3M30305 +-I I-I IMC|AUTO READYI | |N0 |M400X1X2

13、1X22310 +-I II/II/I-+SETRUN LSLQS |BUZU BUZU|+.RST+.RSTX2316 +-I IRSTSTOP| |N0 M400 + | | | | |+| | | | |M0 + AUTO | RUN | | | |M5 + WAIT | STOP | | | |M4 +XISI | | | | |M0 + AUTO | RUN | |報警進入稀釋狀態|M8 M4 M5|318 +-I I-1 I-+-I/IMCN1 M401 +|ERROR XISI |WAIT|STOP|M8|+-I/I+|ERROR|N1 |M401|-+-1|M0 M4 M10Y

14、17|325 +-I/I-I I-+-I/I()-+|AUTO XISI |FSBTFSB |RUN|M0|+-I I+|AUTO|RUN|M0M4 M5Y15 |330 +-I/I-I I-+-I/I-+()-+|AUTO XISI |WAIT |RYB |RUN|STOP |M0|K12000|+-I I+(T0)+|AUTO|RUN|M0 T0 M5M3 |338 +-I I-I/I-I/I()-+|AUTOWAITZLCU |RUNSTOP|I|M0M4Y16 |342 +-I/I-I I-+()-+|AUTO XISI |LJB|RUN|T0|M0 M4M2 |+-I I+-I I-

15、I/I()-+|AUTO XISIZLEN |RUN|Y15M7K18000|349 +-I I-+-I/I-+(T1)+|RYB|NLTJK|M102 |M0M200M102 |+-I I-+-I I-I I()-+|Q2KAUTO QF<25Q2K |RUN|T1|358 +-I ISETM7 +|NLTJK|M5|360 +-I IRSTM7 +|WAITNLTJK |STOP|M4X27 M3M100 |362 +-I/I-I/I-I I()-+|XISI-YCL ZLCUQJZK |M4X27 M2 M208M101 |366 +-I/I-I/I-I I-I I()-+|XIS

16、I -YCL ZLEN QF>75Q1G |X27M243M110 |371 +-I/I-I I()-+|-YCL RF<10R2K |0|X27X26M213M111 |374 +-I I-I/I-I I()-+|-YCL -YL RF<50R1K |X27X26X25M112 |378 +-I I-I I-I/I()-+|-YCL-YLYHRJZ |X27X26X25X24M215M113 |382 +-I I-I II II/II I()-+|-YCL -YL YH YCH RF>50R1G |X27X26X25X24M240M114 |388 +-I I-I I

17、I I-I I-+-I I()-+|-YCL -YL YH YCH |RF>0R2G |K1200 |+(T2)+|M10X26M10|399 +-I I-I I-+()-+|FSBT -YL |FSBT |T2|+-I I+|M7 X5K6000 |403 +-I I-I I-+(T10 )+|NLTJK TX>TS|+RSTM104 +|Q1G1 |T10M233|409 +-I I-I ISETM103 +|QF<10Q3K |0|M7 X5K1200 |412 +-I I-I/I-+(T11 )+|NLTJK TX>TS|+RSTM103 +|Q3K |T11M

18、208|418 +-I I-I ISETM104 +|QF>75Q1G1 |IIIIII|M2X6K600 |421 +-I I-I I-+(T12 )+|ZLEN PQ<PL|M7M233M105 |+-I I-I I()-+|NLTJK QF<10Q3K1 |0|M2X13K600 |429 +-I I-I I-+(T13 )+|ZLEN PQ>PH|M7M208M106 |+-I I-I I()-+|NLTJK QF>75Q1G2 |T12|437 +-I I-+SETM8 +|ERROR|T13|+-I I-+|440 +MCRN1 +|報警|X14 M2

19、 M230M108 |442 +-I I-+-I I-+-I I()-+|HOTGF|ZLEN |QF>0QG |M615 |K9000 |+-I I-+(T30 )+|T30|452 +-I ISETM8 +|ERROR|M2K18000|454 +-I I(T31 )+|ZLEN|X23|458 +-I ISETM23 +|XSQDWHAVE |XSQDW |T31M23 M122 X22M120 |460 +-I II II/II/I-+()-+|HAVE LJZ LQS |L1G | XSQDW BUZU|+RSTM123 +(T32 )+|M121 X22469 +-I I-I

20、/ISET|L1K LQS| BUZU|T31M23X22M122472 +-I I-I I-I I-I/I(|HAVE LQS LJZ|XSQDWBUZU|T31M122 X23477 +-I I-I I-I I(T33 )+|LJZ XSQDW|T31M122 X23483 +-I I-1 I-I/I-+(T34 )+|LJZXSQDW|+RST+RSTL1K- | 100% | | |K3000 | | | | |M122 + LJZ | | | |M121 | )-+ L1K | | | |K9000 | | | |K9000 | | | | | M23 + HAVE | XSQDW

21、| | |M122 + LJZ | |T33|491 +-I ISETM8 +|ERROR|T34|493 +-I ISETM123 +|L1K- |100% |M0 M5 X27K9000 |495 +-I I-I/I-I/I(T40 )+|AUTOWAIT -YCL|RUNSTOP|T40|501 +-I ISETM8 +|ERROR|X16K100 |503 +-I I-+(T41 )+|JJIN |X20|+-I I-+|LJSDW|X21|+-I I-+|LS|BUZU |X22|+-I I-+|LQS|BUZU|T41|510 +-I I-+SETM8 +|ERROR|X11|+-

22、I I-+|OLLJB|X12|+-I I-+|OLFSB|稀釋、待機|M2K24000|514 +-I I(T20 )+|ZLEN|M2X17|518 +-I I-I I-+SETM4 +|ZLEN LSDW |XISI |M0|+-I/I+|AUTO|RUN|M8|+-I I+|ERROR|M4P|523 +-I I-+MOVT20 D20 +|XISI |XISI |TIME |D20 |+(T21 )+|M4M230M107 |532 +-I I-I I()-+|XISIQF>0QCXG |T21|535 +-I I-+SETM5 +|WAIT |STOP |+RSTM4 +|X

23、ISI |M5M240M115 |538 +-I I-I I()-+|WAITRF>0RG |STOP|X17M0K6000 |541 +-I/I-I I(T22 )+|LSDW AUTO|RUN|I|X17 M0 M5K6000 |546 +-I/I-I I-I I(T23 )+|LSDWAUTOWAIT|RUNSTOP|T22M4|552 +-I I-+-I IRSTM4 +| |XISIXISI |X5|+-I I-+|TX>TS|T23 M5|556 +-I I-+-I IRSTM5 +|WAITWAIT |STOPSTOP |X5|+-I I-+|TX>TS|M8K

24、600 |560 +-I I-+(T42 )+|ERROR|+RSTM0 +|AUTO |RUN |T42+-I/ISETT42 X4567 +-I I-I I-+RST571 +MUTE I+.RSTMCRIY0 + BELL |IIIIY0 + BELL |IIIIM8 + ERROR|IIIIN0 +II蒸汽閥開量大小監測IIM8000|573 +-I I-+-DZCP D100D102C220M200 +IIZQFQF<25 |IIIITIMEII1IIIII +DZCP D104D106C220IIM203 +IIZQFQF<50 |IIIITIMEI I 1IIIII

25、+DZCP D108D110C220IIM206 +|ZQF|TIME|1QF<75| | | 1|+DZCP D112D114C2201|M233 +|ZQFQF<10| |TIME0| |K| |+DCMP C2200M230 +ZQFQF>0 |TIME| |溶液閥開量大小監測1M80001 |655 +-I I-+-DZCP D120D122C221M210 +|RYFRF<25 | | 1TIME| |11|+DZCP D124D126C2211|M213 +|RYFRF<50 | |1TIME| |11|+DZCP D128D130C2211|M216

26、 +|RYFRF<75 | | 1TIME| | 11|+DZCP D132D134C2211|M243 +|RYFRF<10| |TIME0| |K| |+DCMP C2210M240 +RYFRF>0 |TIME|II蒸汽閥限制|X0M50 |737 +-I I()-+|ZQFKQFK F |F|X15M51|739 +-I I()-+|ZQFGQFG F |F|X7M52 |741 +-I I()-+|RYFKRFK F |F|X10M53|743 +-I I()-+|RYFGRFG F |F|M51M8220 |745 +-I I()-+|QFG F|M50M8012

27、 M30K6000000|748 +-I I-+-I/I-1 I(C220)+|QFK F| READYZQF|TIME|M51|+-I I-+|QFG FY5)+Q1G |QF>0QFK FZQFGM101 M230 M50 757 +-I I-+-I I-+-I/I|M104 | +-I I-+|Q1G1 | |M106 | +-I I-+|Q1G2 |M107 | +-I I-+|QCXG |M108 |+-I I-+|QG |M100 | +-I I-+ |QJZK|M30M109+-I/II I-+|READY QFINIIIIIII|M102 M51 M100 M107 M108 M235 M30Y3|769 +-I I-+-I/II/II/II/II/II I()-+|Q2K |QFG F QJZK QCXG QG QF>10 READYZQFK |0|M103 |+-I I-+|Q3K |M105 |+-I I-+|Q3K1|溶液閥限制| | |M53 779 +-I I(|RFG F| | |M52M8012 M30782 +-I I-+-I I-1 I(C221|RFK F| READY|M53 |+-I I-+|RFG F |