1 机型的选择
PLC机型选择的基本原则是,在功能满足要求的前提下,选择较可靠、维护使用较方便以及性能价格比的较优化机型。
在工艺过程比较固定、环境条件较好(维修量较小)的场合,建议选用整体式结构的PLC;其它情况则较好选用模块式结构的PLC。
对于开关量控制以及以开关量控制为主、带少量模拟量控制的工程项目中,一般其控制速度无须考虑,因此,选用带A/D转换、D/A转换、加减运算、数据传送功能的低档机就能满足要求。
而在控制比较复杂,控制功能要求比较高的工程项目中(如要实现PID运算、闭环控制、通信联网等),可视控制规模及复杂程度来选用中档或高档机。其中高档机主要用于大规模过程控制、全PLC的分布式控制系统以及整个工厂的自动化等。根据不同的应用对象,表1列出了PLC的几种功能选择。Tuck NI 4-M12-VN6X-H1141 Proximity Sensor 1643100
SMC SY5420-5W0Z-01T-F2 Pneumatic Solenoid Valve SY5000
Whitey B-43S4
Banner Engineering VS4AP5RQ
Bimba Flat-II FT-041.75-M
ROHM KM2003-22A
Bimba FS-092-M
SMC CQ2A63TN-15DZ Compact CQ2-Z
FHCS 11-6720 3X5 Black Zinc M6|1.0 20 {25 / pk}
Fanuc A20B-0008-0242/0204A Spindle Board A350-0008-T244/06
Hoffman F-22LTC T-Fit
Associated Spring Raymond E0300-049-2000M
Associated Spring Raymond E0300-055-1750M
Associated Spring Raymond E0300-049-1750M
Associated Spring Raymond E0300-055-2000M
Hoffman F22WT
Hoffman E4PBGXM
Misumi FXFA20-37-F55
RFE MPX334M305VAC150B060S MPX 0.33 Capacitor X2 275/280V~ 40/110/21 C, X2 305V
Keyence OP-42224 / 9642224 MIL 34-Pin
Jupiter Pneumatics 4201501221JP 6.5-11 LBS
Asco Red Hat II 8210G094
Carel DP030D30RU
Kyocera KPA-104-8MTA4-ZB
Keyence Light Curtain Reciever SL-C20H-R
HONEYWELL MICRO SWITCH GKNC3L, SK-U1Z, 60947-5-1, A300
Koyo TRA-815:PAL125 Thrust Roller Bearing Washer TR 73419
Carlo Gavazzi RM1A60D100
Numatics 031PA400O000000
KOYO EE4S2RSC3
Banner CL50GRYAPQ
Eaton EGHMVD6R
PEPPERL & FUCHS 3AG4022-3AG33-PF Sensor, Inductive, M12, Sr 4mm, PNP, 552449
Turck RSM RKC 577-6M Cordset M12 Male to M12 Female 6M U-04835
ATI Industrial Automation QC-5 MASTER **TE 9120-005M-000-000-1144
Beckhoff KL33120010
Allen Bradley 855T-B24TL6
Grace R-3W
Misumi CFPBTD16-P18-L16-B6
Grace C1603
SMC ZSE-C4-T
SMC ZCUKC20-50D ZCU FREE
GCX1261-24L
IFM I7R201
Allen Bradley 872C-A15N30-A2 A
Banner Engineering SMBIVUU Mounting Bracket Kit 82549 1426P
Phoenix Contact IB IL AI 2/SF-PAC I/O Module 2861302
OMAL 230-371 SP 10/50V