警告不要在要求精確測(cè)上總時(shí)間的應(yīng)用軟件中使用定時(shí)觸點(diǎn)。這些類型的應(yīng)用軟件首選計(jì)時(shí)器，時(shí)基子程序和PID塊。CPU基于–個(gè)自由運(yùn)行的定時(shí)器更新定時(shí)觸點(diǎn)基準(zhǔn)，該計(jì)時(shí)器與CPU掃描開(kāi)始沒(méi)有關(guān)系。如果掃描時(shí)間與定時(shí)觸點(diǎn)時(shí)鐘保持同相，定時(shí)觸點(diǎn)將一直顯示相同的狀態(tài)。例如，如果CPU是在–個(gè)掃描時(shí)間設(shè)定為100ms的固定掃描模式,T_ 10MS和T_ 100MS位將不會(huì)觸發(fā)。注意:對(duì)于定時(shí)觸點(diǎn)在PACSystems CPU、90-70系列和90-30系列操作中的不同的簡(jiǎn)述見(jiàn)附錄C中的“LD功能塊的不同”。

Turck Proximity Sensor BI20-CK4080-VP4?X2-H1141 #31316

Yuken Directional Valve T-DSG-03-3C53-D?24-5022 #13248

Parker Cylinder 01.50 CJ2ANU19AC 1.000 #32325

AIC Heater Band A-M330C145M3-ST?ZB 330mm ID x 145mm

STI AC BeamSafe Receiver 43427-0020 #17583

Swivel Caster with Brake 12 x 3 Rubber Wheel #28982

Fuji Electric Transistor Module 2MBI200J-140, 200A, 140

Fast Heat Temperature Controller CD3-A3-DU #37794

Miller Fan Motor 141518 #30723

Allen Bradley Motor Starter Contactor 709-DOD93 #29276

Square D SPXTMQ5 T Mini Connector 5 Pin #29210

Square D Circuit Breaker FAL36100 #15961

Moore Industries Servo Board 15823-1 #33207

Allen Bradley 1770-XG Connector Data Hiway #28963

Hoffman WireWay Telescopic Fitting F88LA #34291

Matheson Gas Regulator SP1347 #30535

US Motors Speed Reducer 5636/B05N, 1750 RPM, #33757

US Electrical Motor High Efficiency F012B, .75 HP, 1750