游蕲水清泉寺,寺临兰溪,溪水西流。
山下兰芽短浸溪,松间沙路净无泥,潇潇暮雨子规啼。(潇潇 一作:萧萧)
谁道人生无再少?门前流水尚能西!休将白发唱黄鸡。
PLC使用专用的指令或运动控制模块,对直线运动或圆周运动的位置、速度和加速度进行控制,可实现单轴、双轴、3轴和多轴位置控制,使运动控制与顺序控制功能有机地结合在一起。PLC的运动控制功能广泛地用于各种机械,如金属切削机床、金属成形机械、装配机械、机器人、电梯等场合。
3.闭环过程控制
过程控制是指对温度、压力、流量等连续变化的模拟量的闭环控制。PLC通过模拟量I/O模块,实现模拟量(Analog)和数字量(Digital)之间的A/D转换与D/A转换,并对模拟量实行闭环PID(比例-积分-微分)控制。现代的大中型PLC一般都有PID闭环控制功能,这一功能可以用PID子程序或专用的PID模块来实现。其PID闭环控制功能已经广泛地应用于塑料挤压成形机、加热炉、热处理炉、锅炉等设备,以及轻工、化工、机械、冶金、电力、建材等行业。
INTEC 7010198 ANALOG PROCESSOR II MODULE REV L D575351
INTEC 7010216 EX WIDTH DISC REV M D575352
ACOPIAN VA24H850M 24V-DC 8.5A POWER SUPPLY D575740
INTEC 7810005 CAMERA INTERFACE REV H D575353
INTEC 7010052 DISCRIMINATOR REV R D575354
LUMETRICS 13000-12 OPTICAL THICKNESS PROBE SENSOR 50MM SS D575507
PEPPERL FUCHS WE77/EX1 129199 SWITCH AMPLIFIER 115V-AC D579505
BROWNELL ELECTRO PCM-10 CURRENT TRANSDUCER D575335
CPC 38378-4 PCB CIRCUIT BOARD D575807
GE 16SB1B11X2 TYPE SB-1 BREAKER ROTARY ConTROL SWITCH D579845
CUTLER HAMMER E51SPL E51RN LIMIT SWITCH 10-30V-DC D575643
CUTLER HAMMER E51SPL E51DF3 LIMIT SWITCH BODY/HEAD 10-30V-DC D575656
HUBBELL SSLS1TMP SOLID STATE LIMIT SWITCH D575642
MOORE INDUSTRIES SIY/PRG/4-20MA/10-42DC-VTD[DIN] ConVERTER ISOLATOR D575191
MIDLAND JAY TECTRITE BAP1223 PHASE MonITORING RELAY 208V-AC D575843
FISHER ROSEMOUNT CL6784X1-A1 DISCRETE I/O TERMINATION PANEL REV A/B 240V D582710
YASKAWA CMPC-CM34C-4 MOTIONPACK-34 MOTIonCONTROLLER 24V-DC D582757
STEC SEC-7340M O2 10SLM MASS FLOW ConTROLLER D575925
WATLOW 11225-02 ANAFAZE ConTROLLER BOARD REV A D575956
POWER MODULE CIRCUIT BOARD 402856-AB 402856-0 D575958
TR100 50100647 34103075 BACKPLANE REV 1 PCB CIRCUIT BOARD D575957
HARTING HAN-K4/2F 4-PIN ConNECTOR W/ INSERT CAGE-CLAMP 1IN NPT 660V 80A D575774
DWYER V6EPB-B-S-LF W.E. ANDERSON FLOW SWITCH 1450PSI 1/2IN NPT 125/250V D582879
PAK LINE CTR19 0534 NR0050M PCB CIRCUIT BOARD D575812
ACOPIAN A24H850 24V-DC 8.5A AMP POWER SUPPLY ConTROLS D582882
CURTIS INDUSTRIES LCT LIQUID LEVEL ConTROL BOARD 120V-AC D575802
HonEYWELL 914CE2-3K MICRO SWITCH LIMIT SWITCH D576021
SCHNEIDER 140CPS12400 MODICON QUANTUM POWER SUPPLY LMS AC PS 115/230V-AC D575868
GENERAL ELECTRIC GE CR2820-1740 B3 TIME-DELAY RELAY 230V-AC D582968
ITD 120 INVERTER TRANSFER DRIVER TERMINAL D580235
TYCO 5130-104-01 AUXILIARY RELAY MODULE PCB CIRCUIT BOARD D583173
BINMASTER VR-41 SPDT VIBRATING ROD LEVEL ConTROL 20-250V-AC D583140
SQUARE D 9055-A0116 MAGNETIC TIME DELAY CURRENT RELAY SER A 600V-AC 10A D583081
SQUARE D 9037 HG1S1 CLOSED TANK FLOAT SWITCH D583235
ELECTRO CHEMICAL DEVICES ECD T21 PROCESS TRANSMITTER D578636
MCGUIRE 112-224 AUTODOK LEVELER OPERATION ConTROLLER 600V-AC 30A AMP D579813
SIEMENS 6ES5454-4UA12 SIMATIC S5 OUTPUT MODULE D583263
SIEMENS 6ES5465-4UA12 SIMATIC S5 ANALOG INPUT MODULE D583260
TEXAS NUCLEAR 885820 PCB CIRCUIT BOARD REV C D580300
MOORE ECT/4-20MA/4-20MA/12-42DC-RF-VTD SIGNAL ISOLATOR ConVERTER D580421
ALLEN BRADLEY 22-HIM-C2S POWERFLEX OPERATOR INTERFACE KEYPAD SER C D580637
TDK 3EA00E182F/B PCB CIRCUIT BOARD D576359
FW BELL PCS-200 INDUCTIVE CURRENT SENSOR 4-20MA D580743
DWG 01-474-0050-4 DOUBLE TORQUE SWITCH ASSEMBLY D580629
CCL 3825 TYPE PRS-025-32 CENTRIFUGAL SWITCH 600V-AC 1300RPM D580651
ISSC 1013-1E1B TIMER RELAY 120V-AC D580646
EAGLE SIGNAL BRE9A6 TIMER 120V-AC D580813
SCN-749N142 PCB CIRCUIT BOARD D580734