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目前公司主要产品包括有PLC、HMI、伺服、专用控制系统、远程I/O和现场总线产品等，其高性能自动化产品与控制方案广泛应用于塑料机械、电子设备、纺织机械、新能源、制冷制热、医疗设备、包装设备、数控设备等众多行业。经过多年发展，正航PLC已经发展成为国产PLC知名品牌。

　　二、可编程自动化控制器（PAC）

　　PAC（可编程自动化控制器）的概念是由ARC咨询集团的高级研究员CraigResnick提出的，在谈到创造这个新名词的意义时，他认为，“PLC在市场相当活跃，而且发展良好，具有很强的生命力。然而，PLC也正在许多方面不断改变，不断增加其魅力。自动化供应商正不断致力于PLC的开发，以迎合市场与用户需求。功能的增强促使新一代系统浮出水面。PAC基于开放的工业标准、具多领域功能、通用的开放平台以及高性能。ARC创造了这个词，以帮助用户定义应用需要，帮助制造商在谈到其产品时能更清晰。”

　　PAC的概念定义为：控制引擎的集中，涵盖PLC用户的多种需要，以及制造业厂商对信息的需求。PAC包括PLC的主要功能和扩大的控制能力，以及PC-based控制中基于对象的、开放数据格式和网络连接等功能。

　　功能优势

　　从PAC的定义可以看出PAC具各的特性，可以完成复杂的功能，并且系统的硬件和软件无缝集成，提高了控制系统的性能。而要完成这些功能，PLC需要额外的扩展卡才能完成。

　　编程时，集成的硬件和软件也是一个优势，用于PAC编程的集成开发环境（IDE）包括一个所有开发工具共享的标签名数据库。PAC使用同一个软件包来满足现有的和未来的自动化要求，而不是使用来自不同供应商的多个软件包。

　　PAC结合了PC的处理器、内存及软件，并且拥有PLC的稳定性、坚固性和分布式本质，PAC采取开放式结构，使用COTS（Commercialoftheshelt），也就是它是选用市面上已经成熟可用的产品组合成PAC平台，如此一来有几个好处：，产品彼此兼容性高，整合性强；第二，这些已经上市的产品技术都已相当成熟，无论是用户或组装者都容易上手；第三，市面上已经成熟的产品在价格上都已相当低廉，在成本控制方面效果十分明显；第四，使用这些市面上已有的产品，将来升级时也较容易；第五，市场已有的现成产品，各种规格、标准都相当齐全，用户可视本身需求，快速开发出产品。

Bently Nevada 3300XL NSv Proximitor Probe Cable Extension 330930-040-00-00

Bently Nevada 7200 Series 8 Meters Cable 21747-080-00

BENTLY NEVADA 12240301 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 12240301 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 330400 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 330400 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 72065-01K (Surplus New not in factory packaging)

BENTLY NEVADA 72065-01K (Surplus New not in factory packaging)

Bently Nevada 43460-01 Terminal Strip

BENTLY NEVADA PWA88199-01 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA PWA88199-01 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 2155/00-06-03-00-01-11-11-11-00-00-00 (Used, Cleaned, Tested 2 yea

Bently Nevada 330930-040-01-00 Extension Cable

Bently Nevada 21747-080-00 7200 Series Probe Extension Cable

Bently Nevada 24134-02 7200 Series Proximity Sensor Switch

Bently Nevada 24134-02 7200 Series Proximity Sensor Switch

BENTLY Nevada 3300 XL 11MM 330704-000-050-10-02-05

BENTLY NEVADA 128031-01C

Bently Nevada 3300 Series Dual Thrust Monitor 3300/20-06-03-01-00-00

Bently Nevada 330854-040-24-00 3300 XL 25MM Probe Extension Cable

BENTLY NEVADA 30000-00-73-18-02 (Used, Cleaned, Tested 2 year warranty)

Bently Nevada 330850-51-00 3300 XL 25MM Proximity Sensor

Bently Nevada 28480-02-90-2-3 Proximity Sensor Probe

Bently Nevada 330101-00-24-10-02-0 3300 XL 8MM Proximity Probe

BENTLY NEVADA 83860-000-018-072-X (Surplus New In factory packaging)

BENTLY NEVADA 72300-01-02-02-05-01-01 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 12240701 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 12240701 (Used, Cleaned, Tested 2 year warranty)

Bently Nevada 330101-00-60-10-02-00 3300 XL 8MM Proximity Probe

Bently Nevada 330101-00-60-10-02-00 3300 XL 8MM Proximity Probe

Bently Nevada 330780-91-00 3300 XL 11MM Proximity Sensor

Bently Nevada 330780-91-00 3300 XL 11MM Proximity Sensor

BENTLY NEVADA 72027-03F (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 72027-03F (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 3300/12-02-20-00 3300 POWER SUPPLY

BENTLY NEVADA 72301-01-04-01-01-01-01 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 72101-01-04-01-01-01-01 (Used, Cleaned, Tested 2 year warranty)

Bently Nevada 7200 Series 21505-000-052-10-02 215050000521002-UNUSED/BOXED -

BENTLY NEVADA 3300/30-04-04-00-00-00 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 726902-2M (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 726902-2M (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 1701/05 GENERAL ELECTRIC 1701/05-01, TERMINAL BASE,BOXZR

BENTLY NEVADA 1701/05 GENERAL ELECTRIC 1701/05-01, TERMINAL BASE,BOXZR

BENTLY NEVADA 7200-DRV-R (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 7200-DRV-R (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 7846202 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 330101-02-12-05-02-00 (Surplus New not in factory packaging)

BENTLY NEVADA 330101-02-12-05-02-00 (Surplus New not in factory packaging)

BENTLY NEVADA 9571-30 (Surplus New not in factory packaging)

BENTLY NEVADA 9571-30 (Surplus New not in factory packaging)

BENTLY NEVADA 72471-18-01-01-00-00-00-00-02-00-02-15 (Surplus New not in factory

MZ-486, BENTLY NEVADA 84145-01 XDUCR I/O + RECORD TERMINALS

BENTLY NEVADA 30001-12-35-36-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 3300/16 XY/GAP DUAL VIBRATION MONITOR 3300/16-03-01-00-01-00-00

BENTLY NEVADA 30000-00-23-18-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 30000-00-23-18-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 30000-00-23-36-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 30000-00-23-36-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 30000-00-13-18-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 30000-00-51-18-02 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 30000-00-51-18-02 (Used, Cleaned, Tested 2 year warranty)

Bently Nevada 18745-03 High Temp 7200 Series Proximitor

Bently Nevada 18745-03 High Temp 7200 Series Proximitor

BENTLY NEVADA 7200-TP-R (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 7200-TP-R (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 7213006 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 7213006 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 90225-22-02-01-01-02-02-01-01-02 (Used, Cleaned, Tested 2 year war

BENTLY NEVADA 3300/02-02-20-20-20-20-02-00-00-00-00-00-00-01-01 (Used, Cleaned,

BENTLY NEVADA 330100-50-00 Proximitor Sensor 8mm

BENTLY NEVADA 330100-50-00 Proximitor Sensor 8mm

BENTLY NEVADA 30000-00-08-18-01 (Used, Cleaned, Tested 2 year warranty)

BENTLY NEVADA 330130-045-10-00 (Surplus New not in factory packaging)

BENTLY NEVADA 330130-045-10-00 (Surplus New not in factory packaging)

BENTLY NEVADA 3300XL PROXIMITOR SENSOR 330180-91-00 NEW

BENTLY NEVADA 3300XL PROXIMITOR SENSOR 330180-91-00 NEW

BENTLY NEVADA PWA72009-05 PC BOARD PWA7200905

BENTLY NEVADA PWA72009-05 PC BOARD PWA7200905

BENTLY NEVADA 3300 XL NSV 330901-04-36-05-02-00 NEW

Bently Nevada Velocity Seismoprobe Sensor 26862-03-12

BENTLY NEVADA 330130-045-00-05 (Surplus New not in factory packaging)

BENTLY NEVADA 3300 XL 8MM 330101-00-48-10-02-00 NEW

BENTLY NEVADA 3300 XL 8MM 330101-00-20-05-02-05 NEW

BENTLY NEVADA 3300 XL 8MM 330101-00-20-05-02-05 NEW

BENTLY NEVADA 3300 XL 8MM 33105-02-12-10-02-00 NEW

BENTLY NEVADA 3300XL 8MM 330101-00-76-10-02-00 NEW

BENTLY NEVADA 3300XL NSV 330903-05-09-10-02-00 NEW

BENTLY NEVADA Digital Tachometer 7200 TACH 72790-03-04-15-00-01-01-01-00001

BENTLY NEVADA PROBE 21504-00-60-05-02 NEW

BENTLY NEVADA PROBE 21504-00-60-05-02 NEW

BENTLY NEVADA 30004-02-12-18-02 (Surplus New In factory packaging)

BENTLY NEVADA 30004-02-12-18-02 (Surplus New In factory packaging)

BENTLY NEVADA 90225-22-04-06-02-02-02-03-01-02 (Used, Cleaned, Tested 2