点击图片查看大图
为了保证主机与PLC的通信准确无误，上位机也必须按通信协议进行和校。如接收的信息有误，则重新读取。如重复3次仍不行，则显示错误信息。
PLC可以多种方式如直接采用现有的组态监控软件与上位监迭机通信，但针对小规模的控制系统，找到一种高性能价格比的通信方法，具有积极的实际意义。
1通信装置的硬件描述
PLC与PC机之间实现通道，可使二者互补功能上的不足，PLC用于控制方面既方便又可靠，而PC机在图形显示、数据处理、打印报表以及中文显示等方面有很强的功能。因此，各PLC制造厂家纷纷开发了适用于本公司的各种型号PLC与PC机通信的接口模块。
三菱公司开发的FX-232AW接口模块用于FX2系列PLC与计算机通信。还有与以太网连接的接口模块AJ71E71、与MAP网连接的接口模块AJ71M51-S1、与FAISMAP网连接的接口模块AJ71M51M1等。
不同的通信方式，有着不同的成本价格和不同的适用范围。在此介绍一种通过PC机的RS-232口与PLC进行通信的实现方法。
--------------------------------------------------------------------------------
工控
春眠不觉晓，
工控哪家好。
产品折扣低,
只有岳航好。
-------------------------------------------------------------------------------
厦门仲鑫航自动化设备有限公司
联系人：丘伟能（丘工）
Tell：0592-5322116 18020776782
Q Q: 3171054145 3063364138
您诚心询价，我诚心报价：
您如想套价，我请您绕道：
仲鑫航竭诚为您服务！
-------------------------------------------------------------------------------
你敢来询价，我敢给报价；
你敢给我实单，我敢就给实价；
你敢给我下单，我就敢给优惠；
你敢给我下大单，我定给你大优惠；
你出合情的价格，我做合理的生意；
没有做不了的生意，只有谈不拢的价格！
你好，我好，大家好！你赚，我赚，大家赚！
-------------------------------------------------------------------------------
如果再给我一次机会，我会找厦门仲鑫航采购！
如果再给我两次机会，我还找厦门仲鑫航采购！
如果再给我三次机会，我再找厦门仲鑫航采购！
如果再给我四次机会，我只找厦门仲鑫航采购！
-------------------------------------------------------------------------------
AB ,ABB, 施耐德 GE..IC693/IC697系列 英维斯，本特利，黑马模块卡件，意想不到的优势！！！
APPLIED MATERIALS 0150-H09040 FID-NET FRONT SIGNAL TOWER CABLE
Cleaned AMAT Applied Materials 0021-21065 Al Shield BB Screwless 300mm
AMAT Applied Materials 0200-09105 Liner Ceramic, APF - New
Applied Materials 0190-13327Thermocouple Assembly with Extender Cable
Applied Materials 0020-76426 CDS Leopold
AMAT Plate Blocker Assy. 150mm 0020-09316 new
APPLIED MATERIALS 0140-20694 HARNESS ASSY PVD SHUTTER
Applied Materials AMAT GRANVILLE-PHLLIPS Convectron Gauge, 275998, 3310-01187
Applied Materials 0150-97562 Cable Assembly, Cham. C TEOS Line Middle 2
Applied Materials AMAT 0020-79091/B 8" Wafer Retaining Ring
Applied Materials/AMAT 0200-00218 Quarz Plate
NEW AMAT Applied Materials PN: 0200-01919 Pad Wafer Lift Ring 300mm Ultimax, .AD
LOT OF 2 Applied Materials 3320-01390 GSKT SHLD RF .103 CSD X 3.987 ID
Applied Materials 0040-61007 TC Heater Liner Marchi JDSM-1516 Thermocouple Dual
Lot of3 Applied Material 0020-20113 Hub DC Bias Shield Assy,SP1981-5517,AMAT,NIB
NEW AMAT Applied Materials 200mm Notch Quartz Shadow Ring Unit 0200-08340
Applied Materials AMAT PALL Inline Filter, RTS, 4HD4886-2551, 4020-00148
Applied Materials 0140-02240 Sensor Assy, Cassette Present AMAT Banner SM312CV2
Applied Materials 0150-36787 Cable Assembly Heater HE to INJ Valve Parallel
0100-35337, Applied Materials, AMAT, SPILL SENSOR BOARD
Applied Materials AMAT 0020-98947 Electrode EH1 New
APPLIED MATERIALS 3700-03273 SEAL C-SEAL K1S 2 PORT SST W/RETAINER Qty 5
Optical Fiber Assembly AMAT 25-05-0 Imaging Fiber (Pure) Applied Materials
AMAT Applied Materials 0242-48555 Kit , Water Hoses 2 CH System NEW
APPLIED MATERIALS -- 0030-00200 C-- Pedestal Ring
AMAT Applied Materials CRIO SENSE BOX 0090-A7270
0100-09322, Applied Materials, AMAT, OZONATOR DISTRIBUTION BOARD
0100-20048, Applied Materials, AMAT, CRYO DISTRIBUTION BOARD
Applied Materials 0010-10328 ShellL Assy, 200mm, Oxide ESC
APPLIED MATERIALS VME CONTROL BD 0100-00012
AMAT Applied Materials 0010-26750 Slit Valve Door new
Applied Materials AMAT 672544 Prom Board Used Working
Applied Materials 3700-01088 SEAL CTR RING ASSY NW50 W/VITON ORING SST304
AMAT 0200-36415 PUMPING RING, CERAMIC C-SHA , NEW
Applied Materials AMAT Kit Main AC Trip Unit 0242-75001
APPLIED MATERIALS RING MAGNET ASSY,UPPER 0010-30591
APPLIED MATERIALS OPTO ISOLATION 0100-02420 REV: 002
Applied Materials 0150-76318 Coax Cable 55'
Applied Materials AMAT Cutler Hammer Circuit Breaker, WMS2C03, 0680-00382
Applied Materials AMAT 0020-02344 SHIELD LOWER 300MM SIP
Applied Materials 0020-46697 CENTERING FIXTURE 200MM 5 ZONE PROFILER
AMAT 0140-38166 HARN ASSY., IR SNSR, E-DTCU Applied Materials
NEW APPLIED MATERIALS AMAT 0050-40761 EXHAUST WELDMENT
Applied Materials 0100-20321, PCB, DC Bias Itnerface Board Schem. 0130-20321 P2
Applied Materials 0620-01164 CABLE ASSY 332CG 6" LG + 2.75" 15P-DSUB
Applied Materials AMAT 0021-45977 COVER DSDA SHAFT HOUSING , REF NEW
Applied Materials AMAT 0090-00193 0100-00313 0100-00373 OCLP Main Control Board
AMAT Applied Materials Centura Inner Shield 300mm 0020-52600 new
APPLIED MATERIALS 0150-12497 REV 002
Applied Materials AMAT VCR Weldment, 0050-01041
AMAT Applied Materials Rorze FABS-202 Wafer Transfer Elevator Lift Assembly
AMAT Device NET I/O Block DIP294 0190-36511 DeviceNet Applied Materials
Applied Materials 0150-39085 Cable Assy, 50 T Baratron - 300MM Mainframe
Applied Materials 0021-25150 REV 001 DISK SHUTTER ALPS AL & ESC AL 300MM
Applied Materials AMAT 30712550 SRA2K Board
Applied Materials 0010-30580 Hose Assy, DI Water Return with Quick Disconnect
Applied Materials 3300-01639 FTG TBG UN TEE 3 X 3/8T 316 SST
AMAT 0140-01988 MP1 Mainframe I/O Assy Cable Applied Materials
APPLIED MATERIALS DXZ -EXZ CHAMBER MDC BELLOWS KIT
Applied Materials/AMAT 8300 RF Micro-Match Network PN: 0010-00799
AMAT 0010-13188 CRESCENT DRIVE ASSY, VDPM, 300MM DESICA, NEW
NEW AMAT APPLIED MATERIALS VACUUM FITTING 0040-20329-A
APPLIED MATERIALS 0150-09922 Cabel Assembly, Ozone Analyzer HAMAT
Applied Materials AMAT Pressure Regulator, 3800-01231
APPLIED MATERIALS, AMAT, 0200-00374, ISOLATOR 300mm, HDPCVD ULTIMA
0020-35665 / COVER, SHIELD LAMP BASE UPPER / APPLIED MATERIALS
AMAT 0040-887893 Thermocouple Watlow 32DSUM060F Applied Materials
APPLIED MATERIALS 0010-76005 P5000 ROBOT BLADE 8" AMAT
LOT OF 2 Applied Materials 0021-20877 PWR SPLY SUPPORT RAIL GEN RACK 300MM
APPLIED MATERIALS SDD BELLOW KSM-1813-62-8 221-742900 REV B 0190-B4120
Applied Materials 0010-00538 Laser Assy 1101P-0725 Uniphase
AMAT 3510-01015 MOTT Flow Restrictor 5 SLM @ 30PSI N2
AMAT Applied Materials PVD 6" Process Kit 0020-28064
NEW AMAT APPLIED MATERIALS 0242-40320 BRACKT FINL LINE W/ FRC CH A or B 300M KIT
Applied Materials AMAT 0100-A1270 PCBA
Applied Materials AMAT SS Pressure Gauge, 3310-00144
AMAT Applied Materials 0100-20458 PVD/IMP Chamber Interface Rev. 12 Used Working
Applied Materials Veriflo Regulator 45300792 3800-00037
Applied Materials 0100-09085 LVDT Voltage Regulator Board Assembly AMAT 24V
Applied Materials AMAT 0020-09933 Gas Distribution Plate New
Applied Materials 0020-40412 BLANK NON-ENP CERTERFINDER REV.A
0020-24913, AMAT, APPLIED MATERIALS, PEDESTAL SST 8inch 101 COVERAGE, NEW
AMAT 0150-12231 CABLE ASSY INTERCONNECT R, NEW
Boc Edwards Applied Materials AMAT 0020-23045 Lower Shield
AMAT Applied Materials 0140-17345 Harness Assembly Water Flow INTC G NEW
Applied Materials Metron A129039 ASSY WFR HOLDER CR-200NC 1.5MM
APPLIED MATERIALS 0100-00232 VAL-P5-1590-02 (#1013)
Applied Materials 0050-10314 Vent Line, Etch Chamber AMAT
Applied Materials 0140-20694 Harness Assy PVD Dhutter Sensors
0100-76053, Applied Materials, AMAT, ROBOT INTERCONNECT BOARD
APPLIED MATERIALS CABLE ASSY 0150-03048
Applied Materials PCB Contactor Interlock Board 0100-20027 TPS-C-0471-063
APPLIED MATERIALS DXZ-EXZ CHAMBER PM KIT
Applied Materials 0100-35393 0110-35393 REV P1 Wafer Rotation Interface Board
AMAT 0200-36664 Quartz Window View Lid Applied Materials 9 1/2" dia X 3/4" thick
Applied Materials Laser Robot Characterization Fixture Assy with Case 0010-21999
AMAT 0040-20433 Rev E Spool Exhaust Transfer Chamber Applied Materials RTSB30
Applied Materials 0150-13043 Cable Heater Cham. "C" TEOS Line BP
APPLIED MATERIALS 0020-33538 PLATE, PERF OX 200MM, UNANODIZED AMAT *NEW, SEALED*
Applied Materials IPC Fab Automation SCM 2000f Controller Interface Unit
APPLIED MATERIALS 0150-G0330 OHU PANEL-P16 BL RF BOX 29500 CABLE
Applied Materials AMAT Split Clamp, 0690-01088
Applied Materials AMAT Quatz Bell Jar 8" Endural PVD PIK 2 Preclean Kit
Applied Materials 0620-00573 CABLE
NEW APPLIED MATERIALS 0140-77284 CABLE, D1 IO, HARNESS AMAT
Applied Materials AMAT COLDER PRODUCTS Coupling, LCD130-06, 3300-03997
Kit of 50pcs Applied Materials 0020-46521 SCREEN SMALL 200MM 5 ZONE PROFILER
Applied Materials Analog Input Board ASSY 0100-09054
Applied Materials 0154-0136-000
APPLIED MATERIALS ASSY RIM PRESSURE VALVE/S 0010-47135
Applied Materials AMAT "Y" Reducer, 3300-05059
AMAT 0190-09299 Cable Bifurcated Fiber Optic 15 FT WLD Applied Materials
Applied Materials/AMAT 0020-30347 Cylinder external
Applied Materials 0200-09572A Quartz Collar
