GDD471A001 ABB 控制卡模塊
首先，要明確一點(diǎn)，無(wú)論是PLC，還是運(yùn)動(dòng)控制器、運(yùn)動(dòng)控制卡，它們的本質(zhì)都是一種控制器，主要負(fù)責(zé)自動(dòng)化系統(tǒng)中運(yùn)動(dòng)軸的控制，同時(shí)也支持輸入輸出信號(hào)的控制。從區(qū)別來(lái)看，主要有以下幾點(diǎn):
1、GDD471A001 ABB 控制卡模塊PLC的專(zhuān)長(zhǎng)在于邏輯10控制，實(shí)現(xiàn)一些復(fù)雜的邏輯控制都很易。對(duì)于運(yùn)動(dòng)控制，一般低端的PLC主要是通過(guò)高速輸出點(diǎn)來(lái)進(jìn)行脈沖控制，中高端PLC一般會(huì)通過(guò)總線(xiàn)的方式來(lái)進(jìn)行控制，常用的總線(xiàn)包括Profinet、EtherCAT、CC-Link等.
2、GDD471A001 ABB 控制卡模塊運(yùn)動(dòng)控卡通過(guò)PCI插槽將控制卡插在PC的主機(jī)上，也可以通過(guò)以大網(wǎng)連接到PC主機(jī)上;利用高級(jí)編程語(yǔ)言C++、C#、VB、http:/VBNETlabview等編程語(yǔ)言進(jìn)行開(kāi)發(fā);編程中使用運(yùn)動(dòng)控制卡廠商提供的控制卡AP接口函數(shù)，來(lái)實(shí)現(xiàn)對(duì)控制卡資源的使用;運(yùn)動(dòng)控制卡也分為脈沖型和總線(xiàn)型，一般總線(xiàn)型要比脈沖型稍貴一些。

GDD471A001

3、GDD471A001 ABB 控制卡模塊PLC具有工作可靠，編程簡(jiǎn)單等優(yōu)點(diǎn)，但其運(yùn)動(dòng)控制功能相對(duì)簡(jiǎn)單，PLC的應(yīng)用過(guò)程中主要通過(guò)PLC+HMI，這就導(dǎo)致可視化界面受到了一定的限制，因此現(xiàn)在基于PLC的上位機(jī)應(yīng)用也越來(lái)越廣泛;
運(yùn)動(dòng)控制卡可以利用PC強(qiáng)大的功能，比CAD功能、機(jī)器視覺(jué)功能、軟件高級(jí)編程等，利用FPGA+DSP / ARM + DSP芯片的功能實(shí)現(xiàn)高精度的運(yùn)動(dòng)控制 (多軸直線(xiàn)、圓弧插補(bǔ)等，運(yùn)動(dòng)跟隨，PWM控制等)。
5、運(yùn)動(dòng)控制器和運(yùn)動(dòng)控制卡的算法幾乎一樣，它們之間的主要區(qū)別在于運(yùn)動(dòng)控制卡需要依賴(lài)于P編程，而運(yùn)動(dòng)控制器可以直接寫(xiě)程序并下載，這樣就可以脫機(jī)運(yùn)行
6、隨著機(jī)器視覺(jué)的廣泛應(yīng)用，運(yùn)動(dòng)控制與機(jī)器視覺(jué)得到了良好的結(jié)合，相比之下，視覺(jué)項(xiàng)目采用運(yùn)動(dòng)控制卡能夠節(jié)約很大的硬件成本，總而言之，PLC相對(duì)來(lái)說(shuō)更偏向于邏輯控制，而弱化于運(yùn)動(dòng)控制，而運(yùn)動(dòng)控制卡、運(yùn)動(dòng)控制器更偏向于運(yùn)動(dòng)控制，而弱化于邏輯控制，同時(shí)，運(yùn)動(dòng)控制卡和運(yùn)動(dòng)控制器對(duì)開(kāi)發(fā)人員的門(mén)檻也要相對(duì)高一些，因此大家可以根據(jù)自己的實(shí)際情況，選擇合適的解決方案。

GDD471A001

GDD471A001 ABB control card module
First of all, to be clear, whether it is PLC, or motion controller, motion control card, their essence is a controller, mainly responsible for the control of the motion axis in the automation system, but also support the control of input and output signals. From the perspective of difference, there are mainly the following points:
1, GDD471A001 ABB control card module PLC expertise lies in logic 10 control, to achieve some complex logic control is very easy. For motion control, the general low-end PLC is mainly through the high-speed output point to pulse control, and the high-end PLC is generally controlled by the bus, the commonly used bus includes Profinet, EtherCAT, CC-Link and so on.
2, GDD471A001 ABB control card module Motion control card through the PCI slot the control card is inserted in the PC host, can also be connected to the PC host through a large network; Using high-level programming languages C++, C#, VB, http:/VBNETlabview and other programming languages for development; The control card AP interface function provided by the motion control card manufacturer is used in programming to realize the use of control card resources. Motion control cards are also divided into pulse type and bus type, and the general bus type is slightly more expensive than the pulse type.
3, GDD471A001 ABB control card module PLC has the advantages of reliable work, simple programming, but its motion control function is relatively simple, PLC application process mainly through PLC+HMI, which leads to a certain limitation of the visual interface, so now based on PLC PC applications are more and more widely;
Motion control card can use the powerful functions of PC, than CAD function, machine vision function, software advanced programming, etc., the use of FPGA+DSP/ARM +DSP chip functions to achieve high-precision motion control (multi-axis straight line, arc interpolation, motion following, PWM control, etc.).
5, the motion controller and the motion control card algorithm is almost the same, the main difference between them is that the motion control card needs to rely on P programming, and the motion controller can directly write programs and download, so that you can run offline
6, with the wide application of machine vision, motion control and machine vision have been a good combination, in contrast, visual projects using motion control card can save a lot of hardware costs, all in all, PLC is relatively more inclined to logic control, and weakened in motion control, and motion control card, motion controller is more inclined to motion control, and weakened in logic control, At the same time, the threshold of motion control cards and motion controllers for developers is also relatively high, so we can choose the right solution according to our actual situation.

GDD471A001