UAC389AE02 HIEE300888R0002 ABB
For the PC_BASE system, the low-grade X86 supporting chips have been discontinued, including DRAM, etc., so that you want to use 386, 486, 586 are impossible, (I have always liked ICOP’s M6117, but now DRAM is really unable to buy new goods, all eat inventory), unless the use of old chips. At the same time, intel and Microsoft have completely abandoned the backward compatibility rule, making the existence of PC_BASE less and less meaningful. No industrial control manufacturers have kept up with the new speed of these two big guys, when your product is ready for the market, you will find that all the devices you use have been discontinued, you can only go to the second-hand market to buy parts.
In the development process of PC_BASE, most manufacturers have encountered the problems of high cost of PC_BASE and strong development ability of users, which makes it difficult to expand the quantity of PC_BASE and high technical support ability and requirements for manufacturers. For this reason, many industrial computer manufacturers have found soft logic developers such as KW, infoteam, ISAGRAF, 3S, using industrial computer or PC104+IO board to form a control platform, the biggest advantage of this control platform is that it can support the various resources of the existing PC, so that monitoring and control can be done in one. The disadvantages are mainly from the small PLC, the cost is too high, the number of points is too small for the large and medium PLC, and there are many architectural problems in anti-interference and anti-vibration.
In the past few years, we spent a lot of time trying to choose the ideal processor among many different types and couldn’t find it. At that time, the engineers on the consumer products side turned their eyes to ARM, because in most cases, the difficulty of developing X86 hardware and software on WINCE and linux is not much different from that of developing similar programs on ARM. And the cost of ARM is much lower than X86. After we tried several ARM (at that time ADI’s industrial ARM has not yet come out), I feel that ARM is not ideal for industrial use, a lot of display, audio, VGA, Ethernet MAC and other functions are not used in the conventional industrial control platform, and ARM anti-electromagnetic compatibility is also a headache. For the general requirements of 2000V fast pulse can also be met, but it is difficult to go up. At present, the choice may be much simpler, quite a lot of industrial ARM, coolfire, AVR, M16 so that developers have many choices, which as a control, M16 is really a very suitable processor, but it is a pity that it is produced.
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