PTAI216 BACHMANN

PTAI216 BACHMANNPTAI216 BACHMANN

*处理单元(CPU)是PLC的控制中枢。它按照PLC系统程序赋予的功能接收并存储从编程器键入的用户程序和数据；检查电源、存储器、I/O以及警戒定时器的状态，并能诊断用户程序中的语法错误。当PLC投入运行时，首先它以扫描的方式接收现场各输入装置的状态和数据，并分别存入I/O映象区，然后从用户程序存储器中逐条读取用户程序，经过命令解释后按指令的规定执行逻辑或算数运算的结果送入I/O映象区或数据寄存器内。等所有的用户程序执行完毕之后，zui后将I/O映象区的各输出状态或输出寄存器内的数据传送到相应的输出装置，如此循环运行，直到停止运行。
为了进一步提高PLC的可*性，近年来对大型PLC还采用双CPU构成冗余系统，或采用三CPU的表决式系统。这样，即使某个CPU出现故障，整个系统仍能正常运行。

郑娟萍

厦门仲鑫航自动化设备有限公司  

PLC的工作原理
一. 扫描技术
当PLC投入运行后，其工作过程一般分为三个阶段，即输入采样、用户程序执行和输出刷新三个阶段。完成上述三个阶段称作一个扫描周期。在整个运行期间，PLC的CPU以一定的扫描速度重复执行上述三个阶段。
(一) 输入采样阶段
在输入采样阶段，PLC以扫描方式依次地读入所有输入状态和数据，并将它们存入I/O映象区中的相应得单元内。输入采样结束后，转入用户程序执行和输出刷新阶段。在这两个阶段中，即使输入状态和数据发生变化，I/O映象区中的相应单元的状态和数据也不会改变。因此，如果输入是脉冲信号，则该脉冲信号的宽度必须大于一个扫描周期，才能保证在任何情况下，该输入均能被读入。

DEMAG Dematic DC  LDBV 380Z045D00   LDBV 380 Z 045 D 00

INDRAMAT DSS02.2-W100-BE12-01-FW Frequenzumrichter

INDRAMAT DDS02.2-W100-BE76-01-FW Frequenzumrichter

INDRAMAT DDS02.2-W100-BE31-01-FW Frequenzumrichter

Indramat DDS02.2-W100-BE12-01-FW    

INDRAMAT TDM1.2-050-300-W1-000  TDM 1.2-050-300-W1-000 -used-

INDRAMAT NAM 1.2-15  NAM1.2-15  Netzanpassungsmodul

Indramat TDM 3.2-020-300-W0    TDM3.2-020-300-W0

INDRAMAT TVD 1.3-15-03  TVD1.3-15-03 Power Supply Versorgungsmodul

INDRAMAT TDM 1.2-050-300-W1-0  TDM1.2-050-300-W1-0 Frequenzumrichter

SEW EURODRIVE MOVITRAC 3007-403-4  SachNr. 8256519 - used -

SEW Eurodrive MDx60A0110-5A3-4-00 S-Nr. 08226857 + MDX61B0110-5A3-4-0T -used-

SEW MOVIDYN MP 5011 AD 00   MP5011AD00

Indramat HDS04.2-W200N-HS 34-01-FW   

SIEMENS SIMOVERT P 6SE1222-2AB02  6SE1 222-2AB02  D400/32 M6REFQ

SIEMENS SIMOVERT P 6SE2108-3AA21  6SE2 108-3AA21 

Siemens Simovert 6SE2133-3AA01   6SE2 133-3AA01

Siemens Simoreg 6RA2125-6DV62-0   6RA2 125-6DV62-0

SEW Movitrac 3007-403-4-00 -unused/OVP-

SEW MOVITRAC 1006-403-4-00

Danfoss MCD3000  Softstarter MCD3022-T7-B21-CV4  - used -

INDRAMAT HDS03.2-W100N-HS34-01-FW DSS02.1M DEA02.1M DLF01.1M CLC-D02.3M-FW HSM01

Siemens SED2.45/32B  6SE6436-2BD34-5EA0   6SE6 436-2BD34-5EA0

INDRAMAT HDS03.2-W100N-HS34-01-FW   DSS 2.1  DLF 1.1   DEA 4.2

SIEMENS MICROMASTER 420 6SE6420-2AD22-2BA1  6SE6 420-2AD22-2BA1  2.20 kW

Getriebebau NORD SK 700E-112-340-A  11kW  inkl. Bedienger?t SK TU1-PAR

DANFOSS Frequenzumrichter VLT2803 VLT 2803 0.9 kVA VTL2803PD2B20STR0DBF00A00C0

DANFOSS Frequenzumrichter VLT5006 VLT 5006 7.6 kVA VTL5006PT5B20STR3DLF00A00C0

Siemens Micromaster 440 6SE6440-2UD15-5AA1 & EMC-Filter Vers:A03/2.06 - used -

QUICK Antriebstechnik DV-505-750RP Frequenzumrichter

SCHAFFNER Spannungsversorgungsfilter FN351H-80-34  -3X 520VAC-

SEW EURODRIVE EMV-Modul EF 014-503 SachNr.: 8263841 -used-

SEW EURODRIVE  MC07A008-5A3-4-00   8272484

SEW EURODRIVE MOVITRAC MC07A055-5A3-4-00  08272549  Umrichter

SEW EURODRIVE MOVIDYN  MAS51A010-503-50  826256X  Umrichter

SEW EURODRIVE MOVIDRIVE 31C015-503-4-00  8263337 Umrichter ohne Bedienteildeckel

SEW EURODRIVE MOVIDRIVE 31C015-503-4-00  8263337  Umrichter

Getriebebau NORD NORDAC Vector SK 7500/3 CT 11.30 kVA

SEW EURODRIVE MOVIDRIVE MDV60A0075-5A3-4-00 8264872 MDX60A0075-5A3-4-00 8226849

St?ber Frequenzumrichter FCM 1028

reis 1410 Id.Nr.: 1729335 10A/20A  Rev.E2 Servodrive

SCHAFFNER Frequenzumrichter, Netzfilter FS5070-16-29

SCHAFFNER Frequenzumrichter, Netzfilter FS5787-16-29

MITSUBISHI FR-ABR-H0.75K Bremswiderstand

MITSUBISHI FR-E540-0.75K-EC FR-E5NF-H0,75K -used (obere Frontabdeckung fehlt)-

MITSUBISHI FR-E540-0.75K-EC FR-E5NF-H0,75K -used-

Siemens 6SE1290-2AF03-Z 6SE1200-6AB00 Frequenzumrichter

Siemens Micromaster Vector 6SE3221-0DC40 6SE3 221-0DC40 -used-

Siemens Micromaster 6SE3221-0DC40 6SE3 221-0DC40 -used/Halterungs?se gebrochen-

SEW BW 147-T Bremswiderstand -unused-_

Siemens 6SE6440-2UC21-5BA1 6SE6 440-2UC21-5BA1

MITSUBISHI MR-J2HBUS5M-A Servokabel

Siemens Simoreg 6RA8 222-1CA0-0  6RA8222-1CA0-0 Card

SEW MOVIDRIVE MCF40A0110-5A3-400 MDx60A0110-5A3-4-00 -used-

SEW Movitrac 31C005-503-4-00 inkl. EMV Modul EF 014-503 -wie neu-

PARKER SSD Drives 6053/PROF/00 + 2x 6511-RS232-00-G

BERGER LAHR D148.13 D 148.13

ESR Pollmeier MidiDrive BN6667.2380-N2-K5-Z1-P1

ESR Pollmeier MidiDrive A BN6682.3879-K5-Z1

ESR Pollmeier MidiDrive BN6617.1542.1285

EUROTHERM 7100A 7100 A Frequenzumrichter

NORDAC COMPACT SK 1500/3 NC   SK1500/3NC

MITSUBISHI MR-JCCBL2M-L Encoderkabel

MITSUBISHI MR-JCCBL5M-L Encoderkabel

ESR Pollmeier MidiDrive D BN6742.3310 B1-R1-A1-SK

SEW MOVITRAC 3004-403-1-00 SachNr. 8256357  6,6 kVA

KEB COMBIVERT 15.56.20A-3389 Frequenzumrichter 16 kVA

Siemens MIDIMASTER Vector 6SE3222-3CG40  6SE3 222-3CG40

HITACHI HFC-VWS 11 LF3 Frequenzumrichter 7,5 kW  

SEW MOVITRAC 3011-403-1-00 SachNr. 825639X  16 kVA

Siemens Motorsteuerger?t 3RW2235-0DB15 3RW2 235-0DB15

Lenze 765 E3 b Frequenzumrichter 

Danfoss VLT5004 VLT5004PT2B20STR3DLF00A00  4,4 kVA

emecanique ATV452075N Altivar 5 Serie 45 2

Siemens Simoreg  6RA2431-6GS22-0  6RA2 431-6GS22-0

Siemens Simoreg  6SE1210-2AB00 6SE1 210-2AB00 

Loher Dynavert 2T2A-03400-007 16 kVA Frequenzumrichter

Loher Dynavert 2T2A-03400-004 8,7 kVA Frequenzumrichter

SIEMENS Simoreg 6RA7025-6DV62-0-Z  6RA7 025-6DV62-0-Z

Control Techniques UNI2402 Frequenzumrichter  7,5 kW

COOPER Tools TM12 960900 Steuerung

DGD GARDNER DENVER Controller-C TFT T L2 F 960734-F

ABB Drives ACS60100093 Frequenzumrichter

emecanique Altivar 28 ATV28HU09M2  ATV2 8HU09M2

NORDAC COMPACT SK1100/2CV SK1100 Frequenzumrichter1100W

SM Sieb & Meyer Type M1 26.44.0007 Servo Logikkarte  

SM Sieb & Meyer Type M2 26.44.0007 Servo Logikkarte  

DANFOSS Frequenzumrichter VLT5011 VLT 5011 - used -

SIEMENS SIMODRIVE 6SC6130-0FE01  6SC6 130-0FE01

SEW MOVIDRIVE MDV60A030-5A3-4-0T Umrichter

ABB MS450 MS 450 1SA M45 0000 R1004 Motorschutzschalter

SIEMENS SIMODRIVE 6SC6100-0GA00  6SC6 100-0GA00

SIEMENS SIMODRIVE 6SC6100-0NA21   6SC 6100-0NA21 

BERGER LAHR Karte D191 D 191 RS.05

ifm IE5312   IEK3002BBPKG/US

SEW Eurodrive EMV-Modul EF030-503 -unused/OVP-

SEW Eurodrive EMV-Modul EF014-503 - used -

SEW EMV-Modul  EF075-503

ALSTOM Microverter D 1.8 /380-2   029 143704 

NORDAC COMPACT SK370/2CV SK370 Frequenzumrichter 370W

SIEMENS SIMOREG E150/15 6RA2113-6BK26-0 6RA2 113-6BK26-0 -unbenutzt/OVP-

INDRAMAT  CZ 1.2-01-7  CZ1.2-01-7  CZ1-2-01-7 CZ12017

INDRAMAT TVM 2.4-050-220/300-W1/115/220  TVM2.4-050-22

INDRAMAT Netz-Anpassungsmodul  NAM 1.2-15   NAM1.2-15

FANUC VELOCITY A06B-6050-H104 Control Unit A06B6050H104

DEMAG MANNESMANN DPU500V016B01 Frequenzumrichter

Netzger?t für AEG Frequenzumrichter NG 3-690 /EZO 95W

Powerboard AEG Frequenzumrichter T56030155045

ABB Drives ACS60100053 Frequenzumrichter

Siemens SIMOVERT P 6SE2117-3AA21 Frequenzumrichter

BLEMEO Frequenzumrichter 11DE6A200

Lenze 8303 Frequenzumrichter Typ 8303_E.1L.23  

Siemens SIMODRIVE 6RB 2101-4A-Z R 6RB2101-4A-Z R

INDRAMAT Servo Controller TDM 1.2-050-300-W1-000 /S100

Rexroth Indramat Servoregler DKC 03.1-040-7-FW -used-