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()"*+,-.'/0$#&1 270890:)x=n1e !E 9ABr q44PMG+D9ހI2fDjo! /$Yĩ'mcK>S!D_p[_z)GplU~f:̷D GOkC}g""vIuRS[bqWk bZn\܉ʕ`n';V^̽m\ܑ {y̽WR t`nps{7CzKKtAտe-@"VIDSsimple PID-desk.vix_h[UO )"Ü.tl"\y(U3cU2(8J. m ==\d| {أW%0)4%y!+!>ՁI=?{~ Ȍݚ_ lAүBm E{dN,B^?ڇVx#m$R,!c1zҭbm JCg"BF /c-%e wLRhw廆6|%˓)o+BKUIs\ 2V.XNU {D*7@ةAd d_j]O3L`_.RPi'xn8S;{jqow{Gh١9Z?%L?سBǯbLJZ2IAtԉlw0tGpw;D=|aL1HH%wbLdNg6/^"8n:J跥v>un~"w9yj١xeD2[.DXx F&&d8u]RBˤWSZ '!d̨X =7Vhq?Ɨ ~T*'-CCw[5*T䶨 ^wt4ɋ62Qr]ŗ;Tޏ\ վ y$;VZ ໟA,V @ C{nom= Ab8n{V~^>/"OʟB zg:9Mk3S`  8.2 P@ set point@ process variable@ output value@ P@ I@ D@ upper limit@ lower limitP P p   This is a simple PID which can be used to control a system. The idea of a PID is to control a system by comparing the set point (the system value you want) to the process variable (the current system value), and adjusting the output value (what you output to the system in an attempt to get the process variable to approach the set point. The set point is the value you desire the system to achieve. The process variable is the current value of your system, and is usually acquired by an analog input channel of your DAQ device. P is the Proportional component. This is the amount by which the error gets multiplied. The error is the set point minus the process variable. I is the Integral component. This is how much the PID output will depend on what has happened in the past. D is the derivative component. This is how much the PID output will depend on speculation of what will happen in the future. The output value is the PID output which is usually generated at an analog output channel of your DAQ device in an attempt to get the process variable equal to the set point. The upper limit is the maximum value the PID can output to the system. The lower limit is the minimum value the PID can output to the system.qAaAq9x%D%D9D!D!xwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww @ output value@ lower limit@ upper limit@ process variable@ D@ I@ P@ set point< x  n@ set point@ process variable@ output value@ P@ I@ D@ upper limit@ lower limit! @f@ t@!First Call?: T/Fg         "FPHPsimple PID-desk.vi3D R R  Note: This function is not designed for control loop rates > 1kHz. 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