美国投资开发公司在其《个人计算机与编程软件以及与PLC联系操作的美国市场》调查报告中说,对于PC与PLC联机操作,美国用户希望有更有用的硬件和软件,更好的文件编制功能,并且愿意为此付出相应的价钱。 报告称,43%的用户认为,未来最主要的需要是可允许标准开型软件的硬件;约有28%的用户则认为更容易使用的软硬件是最重要的。要求文件编制功能更好者列第三位,占用户的 U.S. investment and development company in its “Personal Computer and Programming Software and U.S. Markets Operated in Contact with PLC” survey report stated that for PC and PLC online operation, U.S. users want more useful hardware and software, and better documentation capabilities. , And willing to pay for the corresponding price. According to the report, 43% of users believe that the most important need in the future is to allow the hardware of standard open software; about 28% of users think that the easier to use hardware and software is the most important. The third party is required to have a better document preparation function, accounting for the user’s