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PLC的選擇主要應(yīng)從PLC的機(jī)型、容量、I/O模塊、電源模塊、特殊功能模塊、通信聯(lián)網(wǎng)能力等方面加以綜合考慮。
PLC機(jī)型的選擇
PLC機(jī)型選擇的基本原則是在滿足功能要求及保證可靠、維護(hù)方便的前提下,力爭(zhēng)的性能價(jià)格比。選擇時(shí)主要考慮以下幾點(diǎn):
(一) 合理的結(jié)構(gòu)型式
PLC主要有整體式和模塊式兩種結(jié)構(gòu)型式。
整體式PLC的每一個(gè)I/O點(diǎn)的平均價(jià)格比模塊式的便宜,且體積相對(duì)較小,一般用于系統(tǒng)工藝過(guò)程較為固定的小型控制系統(tǒng)中;而模塊式PLC的功能擴(kuò)展靈活方便,在I/O點(diǎn)數(shù)、輸入點(diǎn)數(shù)與輸出點(diǎn)數(shù)的比例、I/O模塊的種類(lèi)等方面選擇余地大,且維修方便,一般于較復(fù)雜的控制系統(tǒng)。
(二) 安裝方式的選擇
PLC系統(tǒng)的安裝方式分為集中式、遠(yuǎn)程I/O式以及多臺(tái)PLC聯(lián)網(wǎng)的分布式。
集中式不需要設(shè)置驅(qū)動(dòng)遠(yuǎn)程I/O硬件,系統(tǒng)反應(yīng)快、成本低;遠(yuǎn)程I/O式適用于大型系統(tǒng),系統(tǒng)的裝置分布范圍很廣,遠(yuǎn)程I/O可以分散安裝在現(xiàn)場(chǎng)裝置附近,連線短,但需要增設(shè)驅(qū)動(dòng)器和遠(yuǎn)程I/O電源;多臺(tái)PLC聯(lián)網(wǎng)的分布式適用于多臺(tái)設(shè)備分別獨(dú)立控制,又要相互聯(lián)系的場(chǎng)合,可以選用小型PLC,但必須要附加通訊模塊。
(三)相應(yīng)的功能要求
一般小型(低檔)PLC具有邏輯運(yùn)算、定時(shí)、計(jì)數(shù)等功能,對(duì)于只需要開(kāi)關(guān)量控制的設(shè)備都可滿足。
對(duì)于以開(kāi)關(guān)量控制為主,帶少量模擬量控制的系統(tǒng),可選用能帶A/D和D/A轉(zhuǎn)換單元,具有加減算術(shù)運(yùn)算、數(shù)據(jù)傳送功能的增強(qiáng)型低檔PLC。
對(duì)于控制較復(fù)雜,要求實(shí)現(xiàn)PID運(yùn)算、閉環(huán)控制、通信聯(lián)網(wǎng)等功能,可視控制規(guī)模大小及復(fù)雜程度,選用中檔或PLC。但是中、PLC價(jià)格較貴,一般用于大規(guī)模過(guò)程控制和集散控制系統(tǒng)等場(chǎng)合。
(四)響應(yīng)速度要求
PLC是為工業(yè)自動(dòng)化設(shè)計(jì)的通用控制器,不同檔次PLC的響應(yīng)速度一般都能滿足其應(yīng)用范圍內(nèi)的需要。如果要跨范圍使用PLC,或者某些功能或信號(hào)有特殊的速度要求時(shí),則應(yīng)該慎重考慮PLC的響應(yīng)速度,可選用具有高速I(mǎi)/O處理功能的PLC,或選用具有快速響應(yīng)模塊和中斷輸入模塊的PLC等。
KLA 3629-3X-REF
SIEMENS 6SL3000-0BE21-6AA0
SIEMENS 6SN1111-0AA00-0BA1
UMTECH UMB-50T-L
Watkins Johnson 903172-001
Watkins Johnson 903171
VARIAN 04-721863-01
VARIAN 04-721865-01
A-B 1771-NIV/C
REXROTH CML20.1-NP-120-NA-NNNN-NW
INDRAMAT TDM3.2-020-300-W0
INDRAMAT TDM3.2-20-300-W0
PARKER HDY115A6-64S1
GE IC660 CBB902H
HD 14-50-701172
CONTEC SPI-8451-LLVA 7850
NIDEK 53695-PC2881A
MITSUBISHI MR-J2S-70B
TOA SEIGYO TFB-080V
FUJI PNA2AB25-0R0A
HD HPG-32A-33-J6PAJ-BL1
PANASONIC MSD153A2V
YASKAWA USAREM-01YRS11
YASKAWA UTMAH-B15AS4KB
ADVANCED B12CAMB
INDUSTRIAL PCA-6186E2
INDUSTRIAL DUX 2001-507B
HAMLET 3D80-001832-12
HD 14-50-177570
ABB 084903-002
Watkins Johnson 903168-001
GE IC660 CBB902H
RELIANCE S-67106
YASKAWA SGDH-20AE
CI A690-100-2030
YASKAWA DR2-04ACY12
PARKER CM232DJ-117282
AERA FC-781CHT
AERA FC-780CHT
ICT 0220006U-C
CJAC AB115-S2-P2
NSK ESA-Y2020T23-21
SANYO 65BM003HBRTA
SANYO 60490-1004RB1
MITSUBISHI AJ71QC24-R2
MITSUBISHI A3ACPU P21
YASKAWA SGMPS-04A2AH761
YASKAWA HPG-32A-33-J603B-SP
MITSUBISHI A951GOT-QSBD
NIDEK 53695-BA01A
NIDEK 53695-PC2881B
MITSUBISHI FX2NC-232ADP
YASKAWA SGDH-01AE
HD 14-50
INDUSTRIAL PCA-6186
INDUSTRIAL PCA-6186E2
YASKAWA SGDH-04AEY213
MECHATRO
SAMSUNG CSMH-15BA1ASM3
AERA VX-003 AND FC-773C
MKS VALVE VAC 99G1407
MKS VLV,LPV1-25AKLKJ5
MKS KL8475
SCHNEIDER TSXDMZ64DTK
PHOENIX SBC81205
A-B 1771-QH A
A-B 1771-WF A
Renishaw PHC9
RELIANCE 57C421B
RELIANCE S-67103-1
RELIANCE S-67103
RELIANCE s-67107-1
YASKAWA SGDM-A5ADA
YASKAWA SGMAH-A5AAA21
A-B 1785-L40L
INDRAMAT 3.2-030-300-W1
PANASONIC MDMA152D1C
GIKEN GSS-15-N02
ANELVA M-822HG
SIEMENS 6DS1703-8RR
SIEMENS C79040-A6422-C403-02-86
YASKAWA SGMP-04A3G32
NANOTEC SH8618M5304-KVA2
INDUSTRIAL PCA-6186
BROOKS 921-070
INDUSTRIAL MSC-3685A
PANASONIC MSDA083A1A
PANASONIC MSDA041D2A49
HD 14-50-309741 -13
ASS AG-SCHWEIZ 247102
PRO-FACE GP2401H-TC41-24V
INDRAMAT 109-0724-4B01
LIEBERT 12-765036-12
SEW MC07A015-2A3-4-10
INDUSTRIAL IB800-G2-1106 P-4
SIEMENS 6ES5928-3UB21
JEOL SP000937-01
YASKAWA SGMPS-08ACA2C
FUJI FVR037E7S-2
YASKAWA JZRCR-XSU02
YASKAWA JARCR-XCT01
INDUSTRIAL IBASE IB800-16
IAI SSEL SSEL-C-2-60I-30DI-NP-2-2
NIKKI DENSO NA80-20BBLKN
VMIC VMIVME 6015
SANYO P50B08100VCL69
A-B METER HP-100
FANUC A06B-6081-H103 F
YASKAWA SGDA-04AP
YASKAWA SGMP-04A3G32
KLA 8100
AD
YASKAWA SGMPS-04ACA2C
OMRON NE1A-SCPU01-V1
SEREN 1400390000C
SEREN 4600780001
SEREN 440119000
SEREN 1400950000
Mavilor BLS-074
DYNAX 65AX-034
CPU BOARD TVME 1004B
TEL TYB121-1/COM-PF
GSI GENERAL 229.017.01
GSI GENERAL 222.033.00
GSI GENERAL 229-060-00
KLA TENCOR SFS75 220663
LEICA MIS200
COMPUMOTOR S83-135-M0
BAYSIDE NR34S-015-LB
TEIJIN SEIKI UP30
MITSUBISHI HC-RFS103
MITSUBISHI HC-RFS103B
MITSUBISHI A1SJ71AR21
MITSUBISHI A1SJ71UC24-R4
SAMSUNG CSMS-15BA1ASM3
FAST FVC06-1 P-900212
MITUTOYO APO 5X 0.14 F200
G.CNT-1400-2
VMIC VMIVME 2532A
HAKKO V610C10
INSTRON T1721-1345
INSTRON A1721-1345
ORIENTAL PCD15T-A3
ORIENTAL PCD15T-A15
LEICA MIS200
SANYO PU0A015EMX1P00
OMRON C60H-C1DT-D-V1
MOTOROLA MVME2604
HD 17-50-025775
YASKAWA SGMAH-02AAAH161
SEREN 4601170000 T3
YASKAWA SGDS-04A01A
TEL PCB LST 3281-000058-1
TEL PCB LST 3208-000058-1
ABB 3BSC980002R519
YASKAWA CIMR-J7AA23P7
FINE HR-MOS-02A
ABB ACS301-2P7-3
AUTONET HFRC-01
AUTONET HFRDI-32
AUTONET HFDI-16 2EA
NSK ESA-Y3008A23-21.1
MITSUBISH MR-J2M-BU4
AUTONET HFRDO-32
AUTONET HFAI-08
AUTONET HFDI-16
MITSUBISHI A1S42Y
HOKUYO PBS-03JN
MITSUBISHI MR-J2M-P8B
MITSUBISH MR-J2M-10DU
CPU-1500-3
MITSUBISHI A2USCPU-S30
TEL BOARD 3208-000146-11
MOTOROLA MVME2604
TAIYO FA80B165-KR2-X79
ANRITSU 50148-1-2
GSI LUMONICS 229.068.01-A
GSI LUMONICS 229.068.01-E
FANUC A14B-0061-B002-02
GE IC600 RB752K
YASKAWA SGDS-10A01A
VMIC VMEBUS VMIVME 6015
TEL TOKYO E208-00001-32
TEL TOKYO E281-000017-32
LUXTRON M200
NEC PC-98H53R
KLA TENCOR SFS76 253537
NAIS XY64D2T
TEL TOKYO E2B013-22/FPD3
TEL TOKYO E281-000016-32
TEL PCB LST 3208-000037-12
TEL PCB LST 3281-000037-12
HD 14-50-620009
HD 14-50-205539
IAI SSEL SSEL-C-2-60I-30DI-NP-5-2
KAMOSEIKO PDB12F-02-036-8
GE IC600 RB753K
YASKAWA SGM-08A3J16
FANUC A20B-2001-0950/06B
PANASONIC MSM152A2D
DR KAISER C 54 B 239
YASKAWA JUSP-WS10AA
YASKAWA JUSP-WSCB 10AA
YASKAWA JUSP-WSCA 10AA
YASKAWA JUSP-WSCD 10AA
NIDEK S1717-PC2778A
NIDEK S1717-PC2778B
ANELVA FUCHO CMS-205
FUJI FPU080H-A10
BROOKS 921-118
MOTOROLA 01-W3960B
KLA 710-404582-00
SAGINOMIYA 16CH A/D X-885C
SAGINOMIYA 8CH D/A X-880B
SAGINOMIYA GAGE X-829D
FORCE CPU-5V
A29 DSPL 670-5851021
A29 DSPL KA6362-01
12220514A
12229514B
MTS ADDA 490357-01B
MTS ADDA 484317-01D
MTS ADDA 492150-01A
SAGINOMIYA MODEL2405 X-712
DUAL D452827-01 C
MTS ADDA 484317-01D
MTS ADDA 501432-01A
MTS ADDA 492150-01A
TAKE TSCD-100
SANYO SB227002
SANYO 0311069C
DUAL D486155-01 A
INDUSTRIAL IB865-Q2-CP1A-0218
ADAPTRONIC MT250-EL321-1
YASKAWA DF9202111-C0
YASKAWA CLSR-CA-1CN2A
DATAL DS2100N-1204
YOKOGAWA SD1015B02
DYNAX FICS-CPU/2.3
INDUSTRIAL ROBO-6382
FANUC A14B-0070-B002-03
FANUC A20B-0009-0470/02A
FANUC A20B-0009-0460/10A
HEIDENHAIN LC191F
CCD FA-620 62365
SIEMENS 6SE3211-5BA40
PANASONIC MSDC083D1A01
IAI SEL-GS-2-AC-400.400-2
SAGINOMIYA D.S.C DPS-3 X-944B
BERGER LAHR VRDM3913/50LWCEB
FANUC A20B-0008-0430.06A
DV NET DELTA I/O DVPA-27N2
Watkins Johnson 903172-001
Watkins Johnson 903171
VARIAN 04-721863-01
VARIAN 04-721865-01
A-B 1771-NIV/C
REXROTH CML20.1-NP-120-NA-NNNN-NW
INDRAMAT TDM3.2-020-300-W0
INDRAMAT TDM3.2-20-300-W0
M2RS232
M12IOAL
THOMSON NT115-005-0
APEX DYNAMICS AB142-S1-P2
PANASONIC MDMA152S1G
PANASONIC MDMA202A1C
MITSUBISHI HC-SFS102B
PULSTEC OPA-360-01A
PCB BOARD VMC-1 REV.C
PCB BOARD PBMU-I-001
PCB BOARD PRTU-002
PCB BOARD PTGU-901E HD 14-80-349557-6
RADSTONE PME 68-33 25574-100
RADSTONE 25B43-202
BROOKS BRD-T2U/T5X-COMP32-B
BROOKS 921-118
MOTOROLA 01-W3960B
KLA 710-404582-00
KLA 073-404581-00
NIDEK S1717-PC2778A
NIDEK S1717-PC2778B
ANELVA FUCHO CMS-205
FUJI FPU080H-A10
YASKAWA JUSP-WS10AA
YASKAWA JUSP-WSCB 10AA
YASKAWA JUSP-WSCA 10AA
YASKAWA JUSP-WSCD 10AA
YASKAWA SGM-08A3J16
FANUC A20B-2001-0950/06B
PANASONIC MSM152A2D
DR KAISER C 54 B 239
CONCURRENT 106-00044-00
SURUGA KS202-100R
OMRON CVM1-CPU11-EV2
FV-ALIGNER DOS/P1/P3-700
FANUC A20B-2000-0170/06B
FANUC A350-2000-T176/05
MATRIX V1000
LEICA MIS200
ABB 1MRS091409
Tencor 261408
Tencor 261394
INDRAMAT 71C-0-N S-3-C/095-B-0//S01
E2B101-16/MCP
E208-000001-16
3M80-001250-17
E280-000001-27
LEICA INS2000
YASKAWA JUSP-WSCB60AA
YASKAWA JUSP-WSCA60AA WS60AA
FUJI 6R1TI30Y-080
6MBP200RA060-06
YASKAWA JUSP-WSCB 30AA
YASKAWA JUSP-WSCA30AA
YASKAWA JUSP-WSCD 30AA
YASKAWA JUSP-WS30AA
FANUC A16B-2202-078
FANUC A16B-2203-0990/02A
TOKYO EFS-23U
PANASONIC MSMA252A1D
ASSY 03-17307-00
MITUTOYO 300-1000102
3M81-026551-15
MKS 1559A00721LR1BN
SAGINOMIYA DSP-2 X-8872
YASKAWA SGDB-30ADG