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编程功能
离线编程方式:PLC和编程器公用一个,编程器在编程模式时,只为编程器提供服务,不对现场设备进行控制。完成编程后,编程器切换到运行模式,对现场设备进行控制,不能进行编程。离线编程方式可降低系统成本,但使用和调试不方便。在线编程方式:和编程器有各自的,主机负责现场控制,并在一个扫描周期内与编程器进行数据交换,编程器把在线编制的程序或数据发送到主机,下一扫描周期,主机就根据新收到的程序运行。这种方式成本较高,但系统调试和操作方便,在大中型PLC中常采用。
五种标准化编程语言:顺序功能图(SFC)、梯形图(LD)、功能模块图(FBD)三种图形化语言和语句表(IL)、结构文本(ST)两种文本语言。选用的编程语言应遵守其标准(IEC6113123),同时,还应支持多种语言编程形式,如C,Basic等,以满足特殊控制场合的控制要求。
(五)诊断功能
PLC的诊断功能包括硬件和软件的诊断。硬件诊断通过硬件的逻辑判断确定硬件的故障位置,软件诊断分内诊断和外诊断。通过软件对PLC内部的能和功能进行诊断是内诊断,通过软件对PLC的与外部输入输出等部件信息交换功能进行诊断是外诊断。
PLC的诊断功能的强弱,直接影响对操作和维护人员技术能力的要求,并影响平均维修时间。
(六)处理速度
PLC采用扫描方式工作。从实时要求来看,处理速度应越快越好,如果信号持续时间小于扫描时间,则PLC将扫描不到该信号,造成信号数据的丢失。
处理速度与用户程序的长度、处理速度、软件质量等有关。目前,PLC接点的响应快、速度高,每条二进制指令执行时间约0.2~0.4Ls,因此能适应控制要求高、相应要求快的应用需要。扫描周期(处理器扫描周期)应满足:小型PLC的扫描时间不大于0.5ms/K;大中型PLC的扫描时间不大于0.2ms/K。
四、机型的选择
PLC按结构分为整体型和模块型两类,按应用环境分为现场安装和控制室安装两类;按字长分为1位、4位、8位、16位、32位、64位等。从应用角度出发,通常可按控制功能或输入输出点数选型。
整体型PLC的I/O点数固定,因此用户选择的余地较小,用于小型控制系统;模块型PLC提供多种I/O卡件或插卡,因此用户可较合理地选择和配置控制系统的I/O点数,功能扩展方便灵活,一般用于大中型控制系统。
(二)输入输出模块的选择
输入输出模块的选择应考虑与应用要求的统一。例如对输入模块,应考虑信号电平、信号传输距离、信号隔离、信号供电方式等应用要求。对输出模块,应考虑选用的输出模块类型,通常继电器输出模块具有价格低、使用电压范围广、寿命短、响应时间较长等特点;可控硅输出模块适用于开关频繁,电感低功率因数负荷场合,但价格较贵,过载能力较差。输出模块还有直流输出、交流输出和模拟量输出等,与应用要求应一致。
可根据应用要求,合理选用智能型输入输出模块,以便提高控制水平和降低应用成本。
考虑是否需要扩展机架或远程I/O机架等。
MVME
BRAND TYPE Q"ty DESCRIPTION
1 ACROMAG AVME 932X 1 1018-473B
2 ACROMAG AVME 947X 3 DIGITAL I/O BOARD
3 ADEPT TECH IM-VME-ADEPT R-B1 L1 1 Imaging IM-VME-ADEPT R-B1 L1 VME Frame Grabber Module
10332-10250 VGB MODULE
4 ADEPT TECH 10332-12400 2 VME MOTION INTERFACE MODULE MI6
5 Allen Bradley 6008-LTV 1 CPU MODULE PLC5 VME
6 Allen Bradley 6008-SV 1 VME Bus I/O SCANNER
7 ALPHI 4D-485 1 A/D Card VME
8 ASPECT 68030X 2 16M/25MHz Processor
9 AT-8 112Y-281134 1 CLOCK-TRIGGER MODULE
10 AT-8 112Y-281140 2 MIZAR-COAX MODULE
11 AVAL DATA AVME 115B 1 Board
12 AVAL DATA AVME 146 1 Board
13 BECHTEL 191-24-22156 1 Pulser VME Card
14 CPCI PCB-5510-0 2 CPU CARD
15 CSPI SC-2XL 5 SuperCard Array Processor VME Controller
16 FORCE CPCI-910 2 Force Motorola CPCI-910 XPCPCI CARD
17 FORCE SPARC CPU-5V/64-110-2/C13 1 VME Board
SPARC SBUS
18 FORCE SYS68K ASCU-2 1 CPU CARD
19 FORCE SYS68K CPU29X 1 CPU CARD
20 FORCE SYS68K PIO-1 1
21 FORCE SYS68K WFC-1 3 CPU CARD
22 GE FANUC 3230 2 VMI VME MODEL 3230 T/C CONDITIONER
23 GE VMIC VMIUME 7648-540 10 VMEBus 933MHz 128MB SBC
24 GESPAC GESVIG-4VME 1 Video Mouse Keyboard Controller Card
25 HANA KVME-041 3 MVME MODULE
26 HEURIKON HK 68/V2FA 1 PMC Module
27 HP E1406A 1 VXIbus Pcboard
28 ICOS MVS 100 MC541 1 VISION SYSTEM PCB BOARD
29 IRONICS IV-3204A-4MB 2 VME CONTROL BOARD
30 IRONICS IV-3273 1 SYSTEM CONTROLLER
31 IRONICS IV-3273A 1 VME Bus 500801
32 JOERGER VTR-1 3 TRANSIENT RECORDER
33 MICRO EE4014 1
34 MIRAE NX02 4 MVME MODULE
35 MIRAE NX03S 19 MVME MODULE
36 National Instruments AT-GPIB/TNT 5 ISA CARD ASSY181830E-01
37 National Instruments GPIB 1014 4 180155-51 Interface VME Mainframe
38 National Instruments VME MXI 2 180960-01
39 Northern Telecom NT6D51AA 2 MVME辅助卡
40 OMRON MVME 3G8B3-MA011 2 I/O MODULE
41 OMRON MVME 3G8B3-NO000 2 I/O MODULE
42 Oregon Micro Systems VME44 4 VME bus
43 Oregon Micro Systems VMEX-4E 1 VME bus
44 Performance Technolgies PT-VME 940U 4 SCSI VME64
45 PMV CPU40D-213E 1 68VME VMC CPU Card
46 Radisys EPC-16 3 VME SBC & optional MSF board
47 SBE VCOM-8 4 VMEBus Card
48 SBS VIPC610 1 CIRCUIT CARD
49 SBS VIPC616 4 Carrier Board VME IP(91611524 REV.B)
50 Schroff MPS 022 4 PC Board
51 SCI VME 1553 2 VMEBus Card
52 SCI VME 553 1 VMEBus Card
53 SIEMENS 6FM1661-3AA00 5 Simatik Karten WF 661
54 SST 5136-SD-VME 2 NETWORK INTERFACE MODULE
55 SYNERGY V400 V440K9 2 VME Board
56 Tektronix PC-3 C73249-A45-B11-6 1
57 Tektronix PC-3 C73249-A47-B9-4 1
58 Themis LXE-8 1 VME MicroSparc Processor Card
59 TOSHIBA DSV1 1
60 VMETRO VBT-321B 1 VMEBus Card
61 XYCOM 106514 1 VMEbus Disk Driver
62 XYCOM XVME-010 1 VMEbus SRM Card
63 XYCOM XVME-210 1 VMEbus DIN Card
64 XYCOM XVME-540 1 32-ch Analog Input4-ch Analog Output VME
65 XYCOM XVME-566 1 VMEbus FAIN Card
66 XYCOM XVME-655 1 VMEbus CPU Card
67 XYCOM XVME-688 2 VME BUS Module
68 Yamatake-Honeywell CB500 2 VME
69 MC1-AB37 1
70 Momentum Computer Board 1
71 Power Amp Control 2
BRAND TYPE Q"ty DESCRIPTION
1 MOTOROLA 20131950142 1 16MEG CPU REV.0CR
2 MOTOROLA MVME 130DOF 1 MODEL:CACHE-1
3 MOTOROLA MVME 131 2 VME Board
4 MOTOROLA MVME 147 2 Single Board Computer
5 MOTOROLA MVME 147-012 1 68030 CPU, 25Mhz, 8MB memory
6 MOTOROLA MVME 147-013 7 68030 CPU, 25Mhz, 16MB memory
7 MOTOROLA MVME 147-023 5 PROCESSOR BOARD
8 MOTOROLA MVME 147SA-1 4 68030 CPU, 25MHZ, 8MB, SCSI
9 MOTOROLA MVME 147SA-2 2 32MHz SBC
10 MOTOROLA MVME 147SB-1 3 PROCESSOR BOARD
11 MOTOROLA MVME 162-031 1 Board
12 MOTOROLA MVME 162-12 1 Board
13 MOTOROLA MVME 162-210 2 Board
14 MOTOROLA MVME 162-522A 2 VME Board
15 MOTOROLA MVME 162-523 2 CPU Board
16 MOTOROLA MVME 162P244LE 2 68040 CPU, 25Mhz, 16MB, 2 SIO, 4 DMA IP, Ethernet
17 MOTOROLA MVME 162P344SE 2 Board
18 MOTOROLA MVME 167 4 VME CPU BOARD 68040/25HZ W/16MB RAM
19 MOTOROLA MVME 167-02A 2 CONTROL BOARD
20 MOTOROLA MVME 167-02B 2 Board
21 MOTOROLA MVME 167-03B 7 VMEbus VME Board
22 MOTOROLA MVME 167-04A 6 68040U CPU, 25Mhz, 32MB
23 MOTOROLA MVME 167B 1 PROCESSOR BOARD
24 MOTOROLA MVME 177-004 4 68060 CPU, 50Mhz, 128KB, 32MB
25 MOTOROLA MVME 177-005 4 68060 CPU, 50Mhz, 128KB, 64MB
26 MOTOROLA MVME 188 1 16MB Memory Board
27 MOTOROLA MVME 224-2 2 Board
28 MOTOROLA MVME 332XT 4 68010 Intelligent Communications Controller
29 MOTOROLA MVME 332XTP 1 SINGLE BOARD
30 MOTOROLA MVME 332XTS 1 8-Channel Intelligent Serial Communications Controller Board
31 MOTOROLA MVME 333-2 3 Serial Controller Card
32 MOTOROLA MVME 334 2 Single Board Computer
33 MOTOROLA MVME 334A 3 SBC Board
34 MOTOROLA MVME 337-1 2 Single Board Computer
35 MOTOROLA MVME 374 1 Ethernet Controller Board
36 MOTOROLA MVME 374-1 3 Ethernet Controller Board
37 MOTOROLA MVME 376 1 Ethernet Controller Board
38 MOTOROLA MVME 510-051 2 Board
39 MOTOROLA MVME 705-1 1 Adapter 331/333, 3-Channel with RS232
40 MOTOROLA MVME 709-1 1 Board
41 MOTOROLA MVME 710B 1 ADAPTER, 332XT, 8 CHANNEL, SERIAL
42 MOTOROLA MVME 712/M 1 Transition module for MVME147/167/177/187
43 MOTOROLA MVME 712A/AM 1 Mainframe Board
44 MOTOROLA MVME 167C 1 Board
序 型号/规格 库存
1 SBS Technologies,Inc. 4
主卡VIPC616 91611524 Rev D00013 S/N:541231
副卡 TIP700-10 IP-OPTONPUT-16 8
副卡 TIP600-10 IP-OPTONPUT-16C 8
2 MOTOROLA MVME162-P244LE(CPU) 1
3 Allied Telesyn International AT-MX10S AUI-RG58 2
4 Schroff Made in GERMANY 2
Type:SEM312
5V 7A,12V 1.5A, 12V 1.5A
5 MOTOROLA MVME162 P344SE 1
6 MOTOROAL MVME 162 PA344SE 1
7 OMS→OREGON MICRO SYSTEMS,Inc. 4
MODEL:VME 44-4E
8 Acromag AVME 9471 3
9 Gespac GESVIG 4VME WFM-68 1
10 SBS Technologies,Inc.
主卡VIPC610 91610263 Rev C93050E
副卡IndustryPack IP-488 1
IndustryPack IP-dual PI/T IP-Digital 48
Motorola MVME 332XTS controller board
Motorola MVME340A VME 340A VME CPU parallel I/O board
Motorola MVME 374 CPU MODULE
Motorola Model # MVME 147-012
Motorola MVME162-522A VME BOARD 01-W3960B
Motorola MVME 147 MVME147 SBC VME 01-W3520B 03A
Motorola MVME 147S MVME147S SINGLE BOARD COMPUTER VME
Motorola MVME 214 MVME214 BOARD VME 84-W8374B01 REV C
Motorola MVME 162-533A 01-W3992B 01A & 01W3960B
Motorola MVME 187B 01-W3690B 03D 01-W3689B 03E
THEMIS UltraSPARC USP-2 VME Module
NEW Radisys EPC-16 VME SBC & optional MSF board
XYCOM XVME-688 VME BUS MODULE NEW
GE VMIC VME Bus VMIVME 7648-540 933MHz 128MB SBC
CSPI SC-2XL SuperCard Array Processor VME Controller
Cognex 8200 6U VME Vision Processing Board
Force Sparc CPU-5V SBUS VME CPU-5V/64-110-2/C13
VME Apcom 1600M PDC-2 VXI MVME
VME VMIC 3111 Module VXI MVME
VME APCOM 1600M RFC-2 Module VXI MVME
VME APCOM 1600M SYN-2 Module VXI MVME
VME MicroSparc Processor Card Themis LXE 8
Performance Technologies PT-VME-940U SCSI VME64
PMV 68 VME CPU40D-213E VMC CPU Card
Bechtel STL Pulser VME Card 191-24-22156
Alphi Tech AD-48S A/D Card VME 1 pcs
XYCOM XVME-540 32-ch Analog Input4-ch Analog Output VME
New Allen Bradley 6008-LTV PLC5/VME
GE FANUC VMI VME MODEL 3230 T/C CONDITIONER
MVME162 P344SE MVME Motorola Mainframe MVME 16
VERY NICE SST NETWORK INTERFACE MODULE MOD# 5136-SD-VME
MVME VME bus card cage w/cards Fuji machine control
FUJI CNC inserted machine includes
1pc VM1152A, 1pc VM1610,
2pc VM1530, 2pc VM1540A,
1pc VM1710, 1pc VM1931
Intel Pentium 133 MHz VME board
NEW Radisys EPC-16 VME SBC & optional MSF board
CPCI CPU CARD PCB-5510-0
Motorola M68EN302 VME Development adapter
Motorola CMB1200 M.Core Development target board
MOTOROLA MVME 147-012 + MVME 712/M Set Serial Aspect
MVME105 MVME117-3 MVME117-4
MVME117A MVME121 MVME123
MVME133 MVME133-1 MVME133-2
MVME133A-20 MVME133SA MVME133SA-20
MVME133SA-20A MVME133XT MVME133XTS
MVME134
MVME134FP