我们的PLC-DCS备件已经建立了独特的全球采购关系，强大的电子商务的推广，
大幅度的折扣，交货快捷，和数以万计的产品销售信息。我们真正的价值优势是
使我们的客户保持领先的竞争优势。
CAT 131000315儋州市
CAT 131000315儋州市
摘要：介绍了推进系统的基本组成，重点介绍了基于多线程技术的PLC与PC的通
讯方式，给出了部分VC6.0的程序，该种通讯方法简单、实用有较高的实用价值。
关键词：串行通讯PLC多线程重叠结构VC6.0
0.引言
在现代工业控制系统中，PLC以其高可靠性、适应工业过程现场、强大的联网功能等特
点，被广泛应用。可实现顺序控制、PID回路调节、高速数据采集分析、计算机上位管
理，是实现机电一体化的重要手段和发展方向。但PLC无法单独构成完整的控制系统，
无法进行复杂的运算和显示各种实时控制图表和曲线，无良好的用户界面，不便于监控。
将个人计算机（PC）与PLC结合起来使用，可以使二者优势互补，充分利用个人计算机
强大的人机接口功能、丰富的应用软件和低廉的价格优势，组成高性能价格比的控制系统。
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VICOR VI-234-CW CONVERTER MODULE QTY (2)
Hitachi Earth-Leakage Circuit Breaker, Model: EX50B
Durakool Cat# BFC-722 Mecury Relay, 1 Pole
(5) MICRO SWITCH 982FS1-A3P-6.5-?L Proximity Sensor, =
VICOR VI-J30-CX DC-DC CONVERTER MODULE QTY (3)
Thomas & Betts 5262 ?" Ring Seals. Qty. 18. ...
UBI P/N: 0.002917.05, Model: Scan Image Scanner
Allen-Bradley: 800MR-QA12S Orange Pushbotton Switch. N...
Allen-Bradley SLC 500, Cat. #: 1746-IB16 Input Module. ...
Dialco / Dialight: 922-1524-525 Pushbotton Swit
LEYBOLD AG 289 12 A9514 0024 VALVE USED R
CEA BERKLEONICS CEAD6C150Y501R VOLTAGE TESTER
CEA BERKLEONICS CEA6D200Y101F2P?1 STANDARD CELL
Modicon Model: PC-0085-102 Programmable Controller
OMEGA: 5TC-TT-T-30-36 Teflon Insulation Thermoc, 5 Pk
PHOENIX CONTACT FLK 26 NR. 2280051 CH-NR: 91/94319/7
Bimba Model: MRS-020.5-D Pneumatic Cylinder
General Electric Motor Controllers & XFMR's. 9
Bimba Model: 0070-5-NT Pneumatic Cylinder. 5/16" Sing...
Allen-Bradley 140-MN-0160 Starters, Qty. 4,
DMT JAY-EL D13-413A50 24-30 VDC RELAY SWITCH
OMEGA J IR+ CO- 610 THERMOCOUPLE
Jasper Electronics Model: APS12-4/OV2-12,
Celwave Model: PA9441 RX Power Supply
Square D Catalog Number: SDSA3650 Secondary Surge Arr...
Motorola 1N1185R Power Silicon Rectifier Diodes
TLA TECHNOLOGY CONTROLLER BOARD REV. A
Norgren Model: R73G-2AK-RMG Regulator kit w/ Guage. Ne...
Potter & Brumfield Model: CB-1024B-78 Time Delay
Schrack Model: RP821024 Relays. Qty. 5
Littlefuse: 3AG, 1/100 Slow-Blo Fuses in Case. ...
PERKIN ELMER 690-0726-008 690-5049-007 BB DAC ADC82AG C...
Littlefuse: 3AG, 1/100 Slow-Blo's. 35+ in Bag
Square D Model: DPA 23 SER. A 35 AMP. DEFINITE CONTACTO...
Gould / Shawmut Amp-Trap Model: A6K80R Classs RK1 Fuse
Modicon / Gould P800 Power Supply, PN: AS-P800-003 w/ K...
Lotr of Norgren 5726-01 & F07 Filters, 7 Pieces
Nidec Beta V: TA450DC Fan, Model: A331256-10A. Tested
Littlefuse Model: KLA-1/2 130 VAC Fuses. Qty.10
Buss Model: CHCC3I Fuse Holder, 30A / 600V / 200K AMP
Telemecanique Model: LC1 D18 10 Contactor w/LA 8 DN 20
Rexroth Bosch: ID80/E-SL. P/N: 3 842 401 651. Read-Wr
NAIS / Panasonic Model: HC4-H-DC24V Relay
Square D Type: SK5271N, Class 9070 Transformer Diconne...
Watlow Model: J4A26 "Firerod" Cartridge Heaters
Electrovert: 3-0759-479-01-4?, Missing One Insulator
Clippard / Minimatic: R-421 4-Way Valve with Clippard C...
BAS / Bioanalytical Systems Model: PM-80 Solvent Delive...
Bimba Flat -1, Model: FO-090.5-3RL Peumatic Cylinder
APOLLO COMPUTER 015891 REV. 01 EA02801467 BOARD
Bimba Model: MRS-021.5-D Pneumatic Cylinder
AVAYA TN793B / 108551755 ANALOG LINE BOARD PCB
Struthers-Dunn Model: A314XCX48PL Octal Relay. 24V, 50...
INAUEN VCD-860N37-1 VCD860N371 CONTROL BOARD NICE!
Bimba Model: MRS-093－－DXP Pneumatic Cylinder
IDEC Model: RH3B-D Relay w/ SH3B-05C Base , DC 24V
IDEC Model: RH2B-UD Relay w/ SH2B-05C Base , DC 24V
Eaton / Cutler-Hammer: 23F119 Push Button Switch. Ne...
OMEGA ENGINEERING WTJ-10-12 THERMOCOUPLE QTY (6)
AVAYA TN464GP 108826884 DS1 INTFC 24/32 BOARD PCB
TELTEC 01V 5088 BOARD PCB
ISOPAD (Tyco) Type TF26020 Temperature Controller R
ISOPAD (Tyco) Type TF26020 Temperature Controller R
Optiforms / UTS P/N: 1054. 603500, Rev. B Reflector.
Pacific Scientific Model: 5410-012 Micro Step Drive. N...
Phoenix Contact PN: 2942108 Relay Contact. EMG-10-REL...
Alco Model: MTF 3060 Selector Switch. Old Stock
Telemecanique Model: ZB2BK123 Green Switch. Old ...
Eaton Model: 8824K14 Toggle Switch. MS3509-23. ...
Cramer Model: 635K-A Hour Meter. 115/60, 2.7W
Gordos: SM-IDC5 Relay Module. Out: 50mA, 30VDC. In: 3...
Lot of: G-Sicherungsein?satze 10 ESKA Fuses, 5000V,1.A. ...
Buss Fuses Type: LPJ-30SP Low Peak Fuse. Old Stock....
Mercator Control Systems (MCS) Model-10 RF Pwr. Control
Quadtronics (QT): CMR1501A Digital Time Delay Relay
Lot Allied Control Model: T163 24VDC Relays, 7 Pieces
Bussmann / Buss Fuse: AGC-2-1/2 Fuses, Qty. 45
Bussmann / Buss Fuses: ABC-1 Fuses, Qty. 22
Hitachi Earth-Leakage Circuit Breaker, Model: ES-50B
Bussmann / Buss Fuses Model: FNQ-R-4 Fuse
Bussmann / Buss Fuses Model: KTK-R-1 Fuse. Old Sto...
Lot Fusetron FRN-R-6/10 Dual Element Fuses, Qty. 2. ...
West Model: PYZ4TAY1-5V Temperature Controller. 8 Pin ...
Instrument Transformers Model: 5RBT-601 Current Transfo...
Electro-Craft E19-3 Servo Motor. R8023-D-1000-1/?2-L
ALLEN BRADLEY 700-HF33A1 CONTROL RELAY QTY (2)
BIMBA MRS-.087-PBL MRS-.087 MAGNETIC REED SWITCH
Littlefuse: FLA-10 SloBlow Fuses. Qty. 5 O...
ALLEN BRADLEY 595-A AUXILIARY CONTACT SER. B
Optek Technology Model: OPB982T51 Sensor
Viewtronix Model: XT1502T Operator Interface Touchscree...
COHERENT GENERAL 0503-004 0503-006-3 BOARD
MODICON AEG AS-B833-016 / B833 / ASB833016 =
Gould Model:ATQ5 Fuses. 500V Qty. 2. Old...
Package: Buss Model: GDA-6.3A Fuses. Qty. 10. Old...
Modicon / AEG P810 Power Supply, Model: AS-P810-000 *
INTERNATIONAL POWER IHES-18/OVP DIGALOG POWER SUPPLY
Schneider Automation / Modicon Model: AS-BDAP-218
Magnecraft Electric: M60AA-12A A.C. CONTACTOR *W2
ACDC Electronics Model JF5N150P-176 Switchable Power Su...
Nihon Pisco Model: VGH074B-66 Vacuum Switch
ACDC Electronics Model JF751B-2000-000?0 Switchable P/S....
Phoenix Contact PN: 2938714. MINI-PS-100-240?AC/5DC/3 M...
SPEEDLINE CAMALOT XP50322 REV 5 XP50321 REV B BOARD
Acromag Model: CSA-161T-M-XSG-?U-1 Transmitter
Symbol Technologies Model: LS8540-I100A Scanner
Allen-Bradley: 1770-FCC / Cat. #: 1770-KCA Key Panel fo...
Allen-Bradley Cat. #: 599-K04 Surge Suppressor for 120V...
Coherent Optical Mirror Plate, Cat: 45-5261-000. O...
Trak Microwave FSCM: 12855, PN: 5041-1087, 200 MHz
Potter & Brumfield: CHB-38-80001 Time Delay Relay
Buss / Cooper Model: FRS-R-600 Fusetron Fuses. Ol...
Omega Engineering Model: 6132H-P-0/600C 1/16 DIN Temper...
T A Systems 120V, 400 Watt Heater, Model Unknown
Condor: HB12-1.7-A+ Switching Power Supply, Tested
Glenn Electric Heater / Starflex Model: SF-503 Heater
WEIDMULLER 910200 TERMINAL FUSE DIN RAIL QTY 3
WEIDMULLER 910150 9101500000 FUSE DIN QTY 3
Video Display Corporation Model: C5M11P4 5" CRT
AMERICHEM ENGINEERING SERVIVES MODEL 630T TIMER MODEL
