MC07B0220-503-4-00

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MC07B0220-503-4-00

市场上主要开关品牌一般选用PC料，PC料又叫防弹胶，抗冲击、耐高温、不易变色的特性对于控制电气的开关来说很重要。比较好的开关正面面板和背面的底座都是用PC料的，而一般的开关会在底座上用黑色的尼龙料替换PC料，这样成本就能降低很多同样用PC料，很多开关厂家用的是海内产的（就算标用的是美国GE什么的其实也是海内合作厂做的，只是由GE卖而已），而目前国内其实还没有一家公司有能力生产PC料，所谓国内产的一般都是用回料重新加工出来的，因而杂质比较高，会很脆，耐热性也明显不佳。较差的开关为降低成本正面面板都可能不用PC料，用混合料或ABS替代。这些材料不仅抗冲击、耐热性差，还容易变色、表面摸多了就显得很毛糙。就是开关过程中导电零件的接触点。触点一要看大小（越大越好），二要看材料。触点目前主要有三种，银镍合金、银镉合金和纯银。银镍合金是目前比较理想的触点材料，导电性能、硬度比较好，也不容易氧化生锈。银镉合金触点其他方面也都比较好，但就是镉元素属于重金属，一方面对人体有害，另一方面和银的融合性也不太理想，会在触点表面形成镉金属小颗粒，导电时可能拉出电弧。纯银做触点其实并不合适，导电性能的确不错，但纯银质地比较软、还很容易氧化（像银首饰时间一长就会变黑）。质地软，开关多了触点就变形了；氧化生锈的话导电性能会差很多，锈点还容易发热，很容易就把触点烧化了。现在主要都是大面板式的，外观和手感都比以前拇指式的要好。拇指式的最大的问题在于容易卡住，因为力矩比较短，开关动作幅度比较小，弹簧轻微软一点或过硬一点，都可能造成开关卡住。前两天看到格雷（别跟我说它是米国的，它要是米国的那我就是火星人）出了个所谓复位开关，试试手感暴涩，拆开一看里面是一个小滚轮，按一下转1/4圈，为减少不可避免的摩擦，上面涂满了润滑油。试想半年后里面润滑油干了，这个开关该怎么用啊。 现在家用电器功率越来越大，对开关的通断负荷要求也比较高，特别是在电器通电的一瞬间（很多劣质开关就是通电时被瞬间大电流烧掉的）。好的开关应该能通16A以上的电流，而普通的最多只能通10A电流。

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Agilestar – AA1403006-E5 – For Nortel – New in Box

Agilestar – FTLX1841E2-AS – For Finisar – New in Box

Agilestar – XFP-10GZR-OC192​LR – For Cisco – NIB

Agilestar – 10G-XNPK-ZR – For Foundry Networks – NIB

Agilestar – ONS-SC-Z3-1470 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1490 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1510 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1530 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1550 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1570 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1590 – For Cisco – New In Box

Agilestar – ONS-SC-Z3-1610 – For Cisco – New In Box

Agilestar – SF2G-LX4-5C-47-​AS – For FibroLAN – New in B

Agilestar – SF2G-LX4-5C-49-​AS – For FibroLAN – New in B

Agilestar – SF2G-LX4-5C-51-​AS – For FibroLAN – New in B

Agilestar – SF2G-LX4-5C-53-​AS – For FibroLAN – New in B

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

Agilestar – DWDM-X2-38.19 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-38.98 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-39.77 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-40.56 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-42.14 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-42.94 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-43.73 – For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-44.53 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-46.12 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-46.92 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-47.72 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-48.51- For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-50.12 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-50.92 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-51.72 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-52.52 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-54.13 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-54.94 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-55.75 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-56.55 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-58.17 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-58.98 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-59.79 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-60.61 – For Cisco – 10GBASE-DWDM

Agilestar – DWDM-XENPAK-30.​33 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-31.​12 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-31.​90 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-32.​68 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-34.​25 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-35.​04 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-35.​82 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-38.​19 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-38.​98 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-39.​77 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-40.​56 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-42.​14 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-42.​94 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-43.​73 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-44.​53 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-46.​12 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-46.​92 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-47.​72 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-48.​51 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-50.​12 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-50.​92 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-51.​72 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-52.​52 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-54.​13 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-54.​94 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-55.​75 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-56.​55 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-58.​17 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-58.​98 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-59.​79 – For Cisco – New in Box

Agilestar – DWDM-XENPAK-60.​61 – For Cisco – New in Box

Agilestar – 10GBASE-ZR-XFP – Enterasys Networks – NIB

Agilestar – EX-XFP-10GE-ZR – Juniper – New in Box

Agilestar – E1MG-BXD-60KM-A​S – For Foundry – New in Box

Agilestar – E1MG-BXU-60KM-A​S – For Foundry – New in Box

Agilestar – XENPAK-1XGE-ZR – Juniper – New in Box

Agilestar – SU69CD-AS – For Marconi – XFP 10GBASE-ZR SM

Agilestar – PAN-XFP-ZR – For Palo Alto – New in Box

Agilestar – XFP-10GZR-OC192​LR2 – For Cisco – NIB

Agilestar – FTLX1811M3 – For Finisar – New In Box

Agilestar – XFP-10G-ZR80 – For Alcatel-Lucent – NIB

Agilestar – X2-10GB-ZR – For Cisco – New in Box

Agilestar – DWDM-XFP-30.33 – For Cisco – New in Box

Agilestar – DWDM-XFP-32.68 – For Cisco – New in Box

Agilestar – DWDM-XFP-35.04 – For Cisco – New in Box

Agilestar – DWDM-XFP-36.61 – For Cisco – New in Box

Agilestar – DWDM-XFP-38.19 – For Cisco – New in Box

Agilestar – DWDM-XFP-40.56 – For Cisco – New in Box

Agilestar – DWDM-XFP-42.14 – For Cisco – New in Box

Agilestar – DWDM-XFP-43.73 – For Cisco – New in Box

Agilestar – DWDM-XFP-46.12 – For Cisco – New in Box

Agilestar – DWDM-XFP-47.72 – For Cisco – New in Box

Agilestar – DWDM-XFP-50.92 – For Cisco – New in Box

Agilestar – DWDM-XFP-50.12 – For Cisco – New in Box

Agilestar – DWDM-XFP-48.51 -For Cisco – New in Box

Agilestar – DWDM-XFP-46.92 – For Cisco – New in Box

Agilestar – DWDM-XFP-44.53 – For Cisco – New in Box

Agilestar – DWDM-XFP-42.94 – For Cisco – New in Box

Agilestar – DWDM-XFP-39.77 – For Cisco – New in Box

Agilestar – DWDM-XFP-38.98 – For Cisco – New in Box

Agilestar – DWDM-XFP-35.82 -For Cisco – New in Box

Agilestar – DWDM-XFP-34.25 – For Cisco – New in Box

Agilestar – DWDM-XFP-31.90- For Cisco – New in Box

Agilestar – DWDM-XFP-31.12 – For Cisco – New in Box

Agilestar – XFP-10G-Z-OC192​-LR2 – Juniper – New in Box

Agilestar – DWDM-XFP-51.72 – For Cisco – New in Box

Agilestar – DWDM-XFP-52.52 – For Cisco – New in Box

Agilestar – DWDM-XFP-54.13 – For Cisco – New in Box

Agilestar – DWDM-XFP-54.94 – For Cisco – New in Box

Agilestar – DWDM-XFP-55.75 – For Cisco – New in Box

Agilestar – DWDM-XFP-56.55 – For Cisco – New in Box

Agilestar – DWDM-XFP-58.98 – For Cisco – New in Box

Agilestar – XENPAK-10GB-ZR – For Cisco – New in Box

Agilestar – XFP-10G-Z-OC192​-LR2 – ForJuniper Networks

Agilestar – DWDM-XFP-31.12-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-31.90-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-34.25-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-35.82-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-38.98-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-39.77-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-42.94-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-48.51-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-50.12-​AS – For Cisco – New in Box

Agilestar – DWDM-XFP-60.61- For Cisco – New in Box

Agilestar – DWDM-XFP-59.79 – For Cisco – New in Box

Agilestar – DWDM-XFP-58.17 – For Cisco – New in Box

Agilestar – DWDM-XFP-56.55 40km- For Cisco – New in Box

Agilestar – DWDM-XFP-50.92 40km- For Cisco – New in Box

Agilestar – DWDM-XFP-38.19 40km- For Cisco – New in Box

Agilestar – DWDM-XFP-35.04 40km- For Cisco – New in Box

Agilestar – DWDM-XFP-32.68 40km- For Cisco – New in Box

Agilestar – 3HE00046AA – For Alcatel-Lucent – NIB

Agilestar – MGBIC-LC07 – For Enterasys Networks – NIB

Agilestar – DWDM-X2-55.75 40km – Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-54.94 40km – Cisco – 10GBASE-DWDM

Agilestar – DWDM-X2-30.33 40km- For Cisco- 10GBASE-DWDM

Agilestar – DWDM-X2-31.12 40km – For Cisco-10GBASE-D​WDM

Agilestar – DWDM-X2-31.90 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-32.68 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-34.25 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-35.04 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-35.82 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-38.19 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-36.61 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-38.98 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-39.77 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-40.56 40km- For Cisco -10GBASE-DWDM

Agilestar – DWDM-X2-42.14 40km- For Cisco -10GBASE-DWDM

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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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