如果 PID 块的采样时间不小于总计时间 的 1/2，那麽 PID 块无法实现对此过程的控制。太大的采样时间会使控制不稳 定 。 采样时将不应大于总计时间的 1/10(差的情况下也不能大于总计时间的 1/5)。例如，如果预计 PV 值会用 2 秒钟的时间到达终值的 2/3

GOODYEAR 569-009-254-002?00 Insta-Grip Hose, 1″X450′, NE

GOODYEAR 535-573-008-004?00 1/4” AUTOGRIP GRAY HOSE 300

HORTON MDU 625 928600 CLUTCH BRAKE, NIB, SEALED

NEXEN MBU 625 928500 CLUTCH BRAKE, NIB

GRAHAM MOTORS & CONTROLS 176B6000 CYCLETROL 150 DC CONT

GENERAL ELECTRIC FVK4100E 100 Amp BUS PLUG ENCLOSURE, N

SOLA ?? 13C15JP 15 kVa GENERAL PURPOSE TRANSFORMER

WIRT AND KNOX 1212-1020 FIRE HOSE REEL, NIB

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MODICON 690MCI00006 690 MCI 000 06 CONNECTOR CABLE, NIB

POWERTRAN B3-1500-1-ENC GENERAL PURPOSE TRANSFORMER, 3.

MANNESMANN DEMAG EKDH WIRE ROPE HOIST TROLLEY WITH MOTO

RINGFEDER CORP HSDA-63W LOCKING ASSEMBLY, NIB

PRECISION DEVICES PDA-400-a1 SURFOMETER, NIB

SICK AGSE 900-1211 PHOTOELECTRIC LIGHT CURTAIN EMITTER,

EDMUNDS CAG COMPUTER-AIDED GAGING