西门子S7-300 STL编写PID例程(英文).pdf西门子S7-300 STL编写PID例程(英

文件名称: 西门子S7-300 STL编写PID例程(英文).pdf

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详细说明：西门子S7-300 STL编写PID例程(英文)pdf,西门子S7-300 STL编写PID例程(英文) Address Data Type Comment 1 basicPID FB101 M101 BOOL dDB D101 DE101 4 raw OUTPUT INT F PIW! 256 INT MW O NT 7 loop_scheduler T 0 TIMER 口tmE M 6.1 BOOL 9|m 42 BOOL 10 lOOp OUT POW 256 INT 11 B100 Cmy1e七卫 estart Oe ethel1: r restart,int1a1z巨卫工D1a□p t pID l 卫g卫 araMeTE上st 七ia1Wa11已三, A good, safe starting point for gain is 1.0 EN EN口 N OUT pidDB.gain Tetryl2:卫 ate tends ta make fast1 oops unstar1e,s0立t立s0 tten set to0 MOVE EN EN口 0.00000e+口I N 口UT dEBat Metall3:Se三t工m。t。5000m11立三色cds,a5三ead MOVE EN EN口 100Doe+00号口UT Network4:1aP三品mP1tim=500丑工1立三是Yd 12s色巴□d M口vE EN EN口 5.0apoe+a口 N 口UT pi山B".samp1e oBI Example program shoring PID loop operation Netvr 1- pID lo cheduling timer 1口口p七工卫e DT s 1apt立m BCD R twork2:Pex1dca11y二a]1P工Df1n1ct1a1上工ock CDR loop time asic工D EN ENO mmode recr r modt raw pT"Pl PsP raw OUTPUT" HOUT Network 3 Copy output to Analog Output point. M口uE EK口 raw OUTPUT"HIN 口UT 1p口tT" Address Decl Synbol Data Type Initial TalueComment 0.0i lode re BOOL F豆LSE requested mode false=manual true=auto PT 工TT process variable in 0..27648 range 4.0a1t BOOL FALSE C1yynt.mdef沍1s已= sitL-1七Yue〓u口 6.oin out SP 工yr setpoint in 0. range o in out OUT 工T output in 0. range 10.stat REAL 1-000000e+ooo proportional gain factor 14.stat RE豆L 0.000000e+ooo derivative time, in msec 18.0零七a七上已已t 1.000000e+004integration time, in msec 2stat sample REAL 1-000000e+002 sample time 26.ostat PTscl 00000ue-001P 0.0st Pscl REAL 5.000000e-001sP, scaled to0..1 34.ostat TTs二1 R盈L lOUT 0..1 8. stat ra上 RE豆L 0. 000000eto00error ter 4 三七邑 h立邑 RR豆L 000000eto00 integration accumulato 46.0s七 p。1 REAL 5.000000e-0o1 last sammple's pT term 0.000000et000 precalculated integration coefficient 54.0多a|DCa色￡E 「RRAL 0.00000色+000 preca1 culated derivative c。e丘 ficient BOOL FALSE current mode. false=manuel. true=aut 58.1sta七 le BOOL FALSE aLc且term口dech Mp RE盈L 图 proportla1 ter of pid 4.temp M R豆AL ine叮上a七 1of ter丘卫工D 8.temp Md CeriTatτ e term of工 12.templA REAL CD卫七r立上ut立口卫七 FB101:B阻s口P工D,Wit丑au旦1axms,pt立0ms,巳t已 This function block performs a simple, position algorithm pID calculation. The k1cksk。1dbea1 led Tit上 a separat色inst盘 ce dat盘上1 for each p工D1P For each PID loop, the block should be called regularly at the interval specified in the #sample parameter The enginee1ise多pns上1 e for setting appropriate T=1ue三 in the cai1,并工ate 工e三e, and *samp1ef立e1 ds in the inst arce data h1ck. The other fie1 ds in the be changed by the programmer: these fields are used by the loop for internal C三1cuLa七立Q卫s While in Manual mode, the loop does not per form the PID calculation. The user may write values to the OUT parameter to manually control the output while in Manual mode. While in Auto mode, the loop does the PID calculation and writes to the out put Manual Auto transition, the loop does a "Bumpless Transter TH loop t三t三p1Yt( sp paramete) to the1eYp, end sets the 1p'siYt“ai七m(欺上主盘s)tt上e已1EEeP1:t(0UTp盘益et色).T三 t上 e attest口ie 七1ga111atgd1 口1 cUt at t上 a =an Ts11 t上 last Manual mode loop output after putting a loop in Auto mode, you should change the sp (setpoint to the required walue as the Bumpless Transfer will re changed it equal the pt

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