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机型选择的基本原则是在满足功能要求及保证可靠、维护方便的前提下,力争最佳的性能价格比。
1.合理的结构型式
整体式PLC的每一个I/O点的平均价格比模块式的便宜,且体积相对较小,所以一般用于系统工艺过程较为固定的小型控制系统中;而模块式PLC的功能扩展灵活方便,I/O点数量、输入点数与输出点数的比例、I/O模块的种类等方面,选择余地较大。维修时只要更换模块,判断故障的范围也很方便。因此,模块式PLC一般适用于较复杂系统和环境差(维修量大)的场合。
2.安装方式的选择
根据PLC的安装方式,系统分为集中式、远程I/O式和多台PLC联网的分布式。集中式不需要设置驱动远程I/O硬件,系统反应快、成本低。大型系统经常采用远程I/O式,因为它们的装置分布范围很广,远程I/O可以分散安装在I/O装置附近,I/O连线比集中式的短,但需要增设驱动器和远程I/O电源。多台联网的分布式适用于多台设备分别独立控制,又要相互联系的场合,可以选用小型PLC,但必须要附加通信模块。
Thomas & Betts Hazlux 116 Shock / Vibration 786607025232
Phoenix Contact MCR-PS-24DC/10D?C
Schmersal AZM 161SK-12/12RKA-?024
SMC AFM20-N02-CZ (Lo) Filter , VHS20-N02-Z Lockout, & NAV2000-N02-5DZ
SMC Regulator Bank (4) NARM2500-A-N02 (LS) w/ ISE40-T1-62L
SMC AVL3000-N03 Soft Start Valve with Lockout & AW30-N03DE-Z
Pair of Misumi SEBNZ8-115
Datalogic HS500A
Keyence EtherCat NU-EC1
KB Electronics KLBC-240DS / SI-5 (3843B)
TURCK HAS8141-0, BS8146-0 CONNECTOR
SMC MGPM12-108
Allen Bradley 194E-E25-1753-6?N
Hoffman F22G24
Allen Bradley TLS3-GD2 Safety Interlock Swich W/ Guard Locking 440G-T27183 E
Allen Bradley 898R-PP68MT-A10 8 Port Dual Channel 6 Pin Receptacles 10 M 898
Siemens-CB15 Profibus Interface Module 6SE3290-0XX87-8?PB0 SIY002O0239
Banner PVD100Q/70989
SMC VQ2200N-51 VQ2 4-Way
Banner K50FLGRY2NQ K50
Oriental Motor Co 5IK60GU-SWM AC Magnetic Brake Motor, 60W, 1/12HP, 1300-1600RPM
Keyence PJ-V20T
Siemens 3RA6120-1CB32
Leeds & Northrup N0231RW K023C
HOFFMAN F66LTA
Allen Bradley 855T-BSPM80
GE Fanuc VersaMax Micro Controller, IC200UEX011-B
Murr Elektronik VBS-RC 022 / 220L Art.-Nr 24 063 RC
Hoffman E2PBGSS
Gould Shawmut 60655R 60A-600V HRC-1
Patlite 12-E32396 LED
EATON Moeller FAZ-C3/1-RT-SP 1 Pole
Keyence FU-A05
PULNIX TM-1040 LOT L 10-0443
PULNIX TM-1040 LOT F 10-0443
Allen Bradley 1746-L524 SER C SLC 500
Allen Bradley 800MR-FXQL24 Ser D 800M-XA
Phoenix Contact STIO-IN 2,5/3 OG Terminal Blocks 3209196
Allen Bradley 1492-WG4
Spectrum Illumination LA18-630 24DC
Cooper Cruise-Hinds CHBB6 CWBB3
ABB MKCS3 Mechanism Kit for OS60J12 & OT160UE3
Balluff BMF00C4 235K-PS-C-2A-SA?2-S49-00,3 T-Slot M8
KEYENCE GT-A22 HIGH-ACCURACY
SIGNAMAX KJS458TL-C5E CAT5E SCREENED KEYSTONE JACK T568A/B
Turck VB 80-5 Cable and 8-Port Junction Box U07013
Allen Bradley 800F-X01
Phoenix Contact MCR-PSP DC
PROPORTION AIR DQB1TFEE060 AIR REGULATOR MOD 067
BradConnectivit?y Woodhead 1300100799
Microguard MG-36-AB-AU
TURCK Bi10-Q14-AP6X2-?V1131
Allen Bradley 1492-W4 Orange Terminal Blocks 600V IEC60947-71 4mm
Allen Bradley 855T-B24SA3
Allen Bradley 800F-1YP/800F-X?01
AAG PC890E Back Plane Circuit Board 420890-35327 40-20-35328
AAG PC890D Back Plane Circuit Board 420890-35327 40-20-35328
Omron 44532-2020 Relay 24V, 2NO+2NC
SMC NCDMKB075-0200-?G5PL
Oriental Motor Co. VEXTA ASM34AK-H100
SMC MKB20-20RZ
Pixelink Machine-Vision Camera PL-A741 1.3MP
Mitsumi ULBYS12-25-M4
Phoenix Contact UT 6-TMC M 8A, M Series
AMPHENOL 97-3106A24-5P 16 PIN