AB 2801-NC18A

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描述

AB 2801-NC18A

得注意的是PLC和DCS这些原来处于不同硬件平台的系统，正随着计算技术、通信技术和编程技术的发展，趋向于建立同一硬件平台，运用同一个操作系统、同一个编程系统，执行不同的DCS和PLC功能。这就是真正意义上的EIC三电一体化。或者说DCS和PLC的形态将会变化，而它们的功能依然存在。其中的关键技术应该是嵌入式PC系统及支持现场总线的I/O （硬件） ，以及以IEC 61161-3为基础的编程系统及强实时(hard real-time)操作系统。PLC在中国的发展
在中国，大约从1974、75年在北京和上海开始开发采用位片式微处理芯片的可编程顺序控制器，并有所应用。但一直未能形成批量生产。在改革开放刚起步的1979年，在当时的机械部仪表局的推动下，开始从美国MODICON引进起584的PLC，并首先在电站的辅机如输煤、除灰除渣、水处理系统以及水泥厂等控制系统中成功应用，从而大大推动了PLC在我国工业的大规模运用。遗憾的是，花了很大一笔外汇的这个项目并不曾形成良性的有后续的发展。
自1985年开始，小型PLC首先是日本三菱电机公司的MELSEC-F，通过非政府渠道进入中国市场。不到三、四年时间，小型PLC就形成了大面积的推广应用局面。1990年以后，Siemens、Allen Bradley以及其它知名品牌开始大举进入中国市场，占据中、大型的PLC的较大份额。1995年后形成了大型PLC以欧美为主、中型PLC欧美和日本平分秋色、小型PLC则以日本为主、Siemens也步步紧逼的格局。至今没有很大改变。

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主营DCS系统配件
机器人系统配件
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Agilestar – SF2G-LX4-5C-55-​AS – For FibroLAN – New in B

Agilestar – SF2G-LX4-5C-57-​AS – For FibroLAN – New in B

Agilestar – SF2G-LX4-5C-59-​AS – For FibroLAN – New in B

Agilestar – SF2G-LX4-5C-61-​AS – For FibroLAN – New in B

Agilestar – 3HE00047AA – For Alcatel-Lucent – NIB

Agilestar – FTRX-1811-3 – For Finisar – New In Box

Agilestar – ONS-SE-2G-1470 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1490 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1510 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1530 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1550 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1570 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1590 – For Cisco – New In Box

Agilestar – ONS-SE-2G-1610 – For Cisco – New In Box

Agilestar – DWDM-XENPAK-36.​61 -For Cisco – New in Box

Agilestar – DWDM-X2-30.33 – For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-31.12 – For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-31.90 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-32.68 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-34.25 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-35.04 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-35.82 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-36.61 – For Cisco – 10GBASE-DWDM

PLC模块，可编程控制器，CPU模块，IO模块，AI模块，通讯模块。AB/施耐德/ABB/GE/本特利/西屋/英维斯/霍尼韦尔/黑马/FU克斯波罗

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主营：本特利，英维思，伍德沃德，福克斯波罗、西屋、瑞恩、施耐德莫迪康、ABB、AB、西门子、摩托罗拉、GE发那科、安川、博世力士乐，ACSO，力士乐等各大品牌的DCS系统配件，机器人系统配件，大型伺服系统备件。

先介绍几点经验。
1、先通读一遍“系统手册”（不管能不能看懂，先了解个大概，以便学习编程时查找）；
2、由位控逻辑入手，逐渐增加定时、计数等条件，把或、与、非关系理顺；
3、进而练习整数运算、实数运算、类型转换；
4、量程转换、PID调节回路的建立及P、I、D参数的理解（最好是有个物理回路验证，比如变频器+电机+测速传感器）；
5、循环、顺序、跳转等程序控制（尽量避免跳转，非跳不可时也是跳的越近越好）；
6、中断、通讯、位置控制....

本人以ABB工业机器人配件DSQC系列和Motorola MVME系列，GE 卡件 模块 驱动器系列为主攻。各位电工朋友可根据自己的条件选择适合自己的PLC品牌，由于PLC的基本框架大同小异，学会一种至于其它的学习起来也就简单了。

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