ESC-C
切断电源，如装有编程器，拔掉编程器
当所有的指令执行完毕时，集中把输出状态寄存器的状态通过输出部件转换成被控设备所能接受的电压或电流信号，以驱动被控设备，这就是输出刷新阶段。PLC经过这五个阶段的工作过程，称为一个扫描周期。完成一个周期后，又重新执行上述过程，扫描周而复始地进行。扫描周期是PLC的重要指标之一，在不考虑第二个因素（与编程器等通信）时，扫描周期T为：
（读入一点时间×输入点数）+（运算速度×程序步数）＋（输出一点时间×输出点数）十故障诊断时间
显然扫描时间主要取决于程序的长短，一般每秒钟可扫描数十次以上，这对于工业设备通常没有什么影响。但对控制时间要求较严格，响应速度要求快的系统，就应该精确的计算响应时间，细心编排程序，合理安排指令的顺序，以尽可能减少扫描周期造成的响应延时等不良影响。
Mahr Federal EASW1 .375" Dia. Stem, 12mm/.670" Stem, Remote Transducer
(V56) 1 WESTINGHOUSE SIZE 3 (?) MANUAL STARTER
Hubbell MHS-Y070S 70 W, HPS S62, 9-7/8"x16-1/4" Lens, Floodlight w/ Bulb
Festo Electric Control Block / Valve Terminal IFB8-02 #52819
Winsmith Worm Gear 6CT #70627
Conair Micro Trac 3 Control MicroTrac3 #30037
Lucent NE G-4 Mini Alarm Monitor
Hytrol Roller Gate Conveyor Conveyor595 #59595
Chicago Pneumatic CP-0214-FALEL, 1 1/2" Jaw, C-Yoke Compression Rivet Squeezer
Agilent J6824A, 8 Port, T1/E1 Line Interface Module + J6801A Analyzer Mainframe
General Radio 1482-Q, 2h +/- 0.1%, 10.6 kHz, 1125Ω Resistance, Standard Inductor
(H14) 1 NETSTAL B PC BOARD
HP / Agilent Post Regulator Board Assembly, For 8753 Series
(8302) Lambda Power Supply LRS49-5
Lee Engineering Lift Truck D48 #48221
Modicon Panel Mate Plus Operator Interface #51271
Mini-Circuits ZDC-15-2, 0.5 to 250 MHz, 1.4 VSWR, BNC (F) Directional Coupler
(N1-3) 1 ELECTRO-MATIC 21559 NORTON GRINDER DRIVE
(10088) Parker Filter HF22H10VQ
Aeg Circuit Board 706021A600 #53408
Tektronix P6119 DC to 100 MHz, 2.0 m Cable Length, Passive Probe
United Electric Controls (UE) 10-F14, 5 A, One SPDT Pressure Switch, in Box
D1024B-Ce Solenoid Valve
Allen Bradley Operator Workstation 953-07 #56400
(Q9-4) 1 FANUC A16B CONTROL MODULE
(000 FLR) Allen Bradley 15 HP Drive 1336-B015-EOE
Love Controls Temperature Controller 16A
FIREYE EP-1601 PROGRAMMER MODULE.
Tenma 3.5 Digit LCD Display, Handheld Digital Multimeter + Instructions
Omega RD-1 Multiple Range (100 mA Max) 100 Ohm Max, Recorder Module + Manual
Parker Hannifin Hydraulic Pump AS #44574
PARKER C425 HANDLE TOGGLE
General Radio 1566-B / 1567, Sound Level Measure Set w/ Case & Accy's, As-Shown
(O1-6) 1 ALLEN BRADLEY 1771HS3CR SERVO CONTROLLER
Sti First Transmitter Light Cutain MCFX1 #78727
(Q8-1) 1 FISHER ROSEMOUNT 39A7263 POWER SUPPLY CARD
Omega CN7101R1-A (CN7100 Series) Auto Tuning, Temperature Controller, Tested!
HP / Agilent AGA12 YTX Driver Board Assy., for 8566A, 8566B,
Star Seiki Operator Panel P300-A #43141
HP / Agilent Microprocessor Board Assy., for 8662A, in Box
(0444) Square D Relay 8501-XO40 V
