IC697BEM731 IC697BEM731IC697BEM731 IC697BEM731
可編程控制器類型
4.1按控制規(guī)模分
控制規(guī)模主要指控制開關(guān)量的入、出點(diǎn)數(shù)及控制模擬量的模入、模出，或兩者兼而有之（閉路系統(tǒng)）的路數(shù)。但主要以開關(guān)量計(jì)。模擬量的路數(shù)可折算成開關(guān)量的點(diǎn)，大致一路相當(dāng)于8～16點(diǎn)。
依這個(gè)點(diǎn)數(shù)，PLC大致可分為微型機(jī)、小型機(jī)、中型機(jī)及大型機(jī)、超大型機(jī)。
微型機(jī)控制點(diǎn)僅幾十點(diǎn)，如德維森公司的V80系列PLC本體從16點(diǎn)到40點(diǎn)，OMRON公司的CPM1A系列PLC，西門子的Logo僅10點(diǎn)。
小型機(jī)控制點(diǎn)可達(dá)100多點(diǎn)。如如德維森公司的V80系列PLC可擴(kuò)展到256點(diǎn)，OMRON公司的C60P可達(dá)148點(diǎn)，CQM1達(dá)256點(diǎn)。德國(guó)西門子公司的S7-200機(jī)可達(dá)64點(diǎn)。
中型機(jī)控制點(diǎn)數(shù)可達(dá)近500點(diǎn)，以至于千點(diǎn)。如德維森公司的PPC11系列可擴(kuò)展到1024點(diǎn)，OMRON公司C200H機(jī)普通配置zui多可達(dá)700多點(diǎn)，C200Ha機(jī)則可達(dá)1000多點(diǎn)。德國(guó)西門子公司的S7300機(jī)zui多可達(dá)512點(diǎn)。
大型機(jī)：控制點(diǎn)數(shù)一般在1000點(diǎn)以上。如如德維森公司的PPC22系列可擴(kuò)展到2048點(diǎn)，OMRON公司的C1000H、CV1000，當(dāng)?shù)嘏渲每蛇_(dá)1024點(diǎn)。C2000H、CV2000當(dāng)?shù)嘏渲每蛇_(dá)2048點(diǎn)。
超大型機(jī)：控制點(diǎn)數(shù)可達(dá)萬(wàn)點(diǎn)，以至于幾萬(wàn)點(diǎn)。如美國(guó)GE公司的90－70機(jī)，其點(diǎn)數(shù)可達(dá)24000點(diǎn)，另外還可有8000路的模擬量。再如美國(guó)*康公司的PC－E984--785機(jī)，其開關(guān)量具總數(shù)為32k（32768），模擬量有2048路。西門子的SS－115U－CPU945，其開關(guān)量總點(diǎn)數(shù)可達(dá)8k，另外還可有512路模擬量。等等。
以上這種劃分是不嚴(yán)格的，只是大致的，目的是便于系統(tǒng)的配置及使用。
一般講，根據(jù)實(shí)際的I/O點(diǎn)數(shù)，凡落在上述不同范圍者，選用相應(yīng)的機(jī)型，性能價(jià)格比必然要高；相反，肯定要差些。
自然，也有特殊情況。如控制點(diǎn)數(shù)不是非常之多，不是非用大型機(jī)不可，但因大型機(jī)的特殊控制單元多，可進(jìn)行熱備配置，因而采用了大型機(jī)。
鄭娟萍
廈門仲鑫航自動(dòng)化設(shè)備有限公司
4.2按結(jié)構(gòu)劃分
PLC可分為箱體式及模塊式兩大類。微型機(jī)、小型機(jī)多為箱體式的，但從發(fā)展趨勢(shì)看，小型機(jī)也逐漸發(fā)展成模塊式的了。如OMRON公司，原來小型機(jī)都是箱體式，現(xiàn)在的CQM1則為模塊式的。
箱體的PLC把電源、CPU、內(nèi)存、I/O系統(tǒng)都集成在一個(gè)小箱體內(nèi)。一個(gè)主機(jī)箱體就是一臺(tái)完整的PLC，就可用以實(shí)現(xiàn)控制。控制點(diǎn)數(shù)不符需要，可再接擴(kuò)展箱體，由主箱體及若干擴(kuò)展箱體組成較大的系統(tǒng)，以實(shí)現(xiàn)對(duì)較多點(diǎn)數(shù)的控制。
模塊式的PLC是按功能分成若干模塊，如CPU模塊、輸入模塊、輸出模塊、電源模塊等等。大型機(jī)的模塊功能更單一一些，因而模塊的種類也相對(duì)多些。這也可說是趨勢(shì)。目前一些中型機(jī)，其模塊的功能也趨于單一，種類也在增鄉(xiāng)。如同樣OMRON公司C20系列PLC，H機(jī)的CPU單元就含有電源，而Ha機(jī)則把電源分出，有單獨(dú)的電源模塊。
模塊功能更單一、品種更多，可便于系統(tǒng)配置，使PLC更能物盡其用，達(dá)到更高的使用效益。
Refurbished ASTeX MKS AG1111 4.8kV power supply w/certificate
Kepco ATE-150-3.5M Power supply 0-150V, 0-3.5A
ENI OEM-12B-02 RF Generator, OEM-12B with Calibration sheet.
Lot of 2 Vari-Size Cord Grip HUBBELL HBL5266C
AGL microwave generator B13171, Power source 1.25kW
BNC Female Union
AE RFPP LF-5 500 Watts RF Generator, AE 3150012
BNC Female to Low Frequency Male Union
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ENI AP-400BM1 Power Amplifer/Generator AP-400
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LIEBERT GXT1500RT-120 0.7POWER FACTOR 120V-AC
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US Digital Motor 212-2575-001 Rev. A W101
Chroma DC electronic load 63600-5, and Chroma 60640-80-80 module, S636005000270
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SOLA power supply SDN 8-5-24
AMAT 0010-09750 RF match, CVD, P5000, module mfg.3kv, 13.56 Mhz
Mean Well USA DR-4524 Power supply, 24V, 2A
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Advanced Energy AE PDX 2500 RF Generator controller panel, PDX-2500, S31597
Used RF male to Low Freq. FE Coax Connector 15
RF Low Freq. Union Gilbert Connector G874
New RF Coax Bulkhead SilverPlated RG571/U
Qualidyne 5V 150A Switching Power Supply 10099, Surplus
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Advanced energy 2026-000-D, ASM LDM PLASMA Generator
AMAT 0190-13407 AE PDX RF Generator 500W, 325-375 KHz
AMAT 0190-77508 Flow switch, Malena M55-113-00-002
ENI RF GENERATOR OEM-12B-02 power generator, OEM12B-02 ; AMAT 0190-70080
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Lambda DPP50-24, DIN Rail Power Supply, 50W
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NEW Advanced Energy Navigator RF MATCH 3155132-001 D
New Rf Coax Connector UG59B/U Amphenol
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Comet CFMN-200CAC/15-AF-G, MC1C-200E/15, 200pF, 15kV/9kV
Asyst Crossing Power distribution, power fail detector, asyst 12846-002, XP 0603
RFPP 7520581010, RFPP AE RF50S 5KW RF power products
RF Low Freq. Union Amp M-M Amphenol 83-15 PL-258 49191
New RF Coax UG186A4U Amp Amphenol part # 554-85/141
AMAT VACUUM FORELINE AND FLANGE 0040-30354, lots of 4
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Novellus 27-128501-00, Astec MP1-2Q-2U-2U-00, 100W, 73-690-0024
Comet CF3C-100E/50, L 8702, 100pF, 50kV/30kV
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Acopian Triple Outlet Power Supply 51515T9AM
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Parker Motion & Control DC4 Power Supply Compumotor CP 7301-DC4-90, 400613
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New RF Coax Bulkhead Connector
Integrated Power system REL110-1006-AC6 WT/PFP3 Power with 17-174297-00-2 mount.
New Coax Connector RF 90 Degree TRU-3299
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ENI RF power meter 1006-508 rev 4 MRC CP-10
ZYGO PIEZO INTERFACE MODULE 291-00184-01, 39402
ZYGO PIEZO INTERFACE MODULE 291-00184-01, 39401
3 NEW Carlo Gavazzi BPH Universal Power Supply, BP H 110, 240 AC/DC
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Lot of 3 BNC male to Low Frequency Fe Union
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OM Speed Control Pack SSP-1, 250V, 7.5A
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2 EFI electronics MBP120/208Y, Linemaster MBP, surge protection 0175-770291
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ANORAD 855895 Axis Controller, 4612014-0001
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352 Gauge controller GRANVILLE-PHILLIPS, model # 112
7 Lambda 45A-28, New in box Power Supply, 28V, 17.5A, LFS4528 Novellus QT330134
4 BECO MAN-103307, fluid solenoid valve
