发表于:2005-11-03 22:36:00
6楼
proface 有5各串口通讯吗?web sever 和data logging软件可能需要单独购买。
siemens的软件很好,但是兼容性......
以下是美国人给我们的比较说明,欢迎大家指正。
PROFACE/XYCOM
Xycom offers a wide range of HMIs, with what appear to be similar features ie. data collection, remote Internet access, etc. However, most of these high-power features are
provided via an external software package. Unfortunately, this dilutes our message to the market, so it’s up to you to make sure your customers are informed that there are important differences.
STRENGTHS
Wide range of panels in various sizes, including models that offer video input.
WEAKNESSES
Xycom GP panels do not have a real web server. Rather, they sell software that must reside on a PC, which communicates to the panel and in turn serves the web pages. This same software package is also required for data logging.
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Ignoring the fact that this requires customers to spend money on additional software, think about the logistics involved, particularly for OEMs. They’re touting to their customers that their machine is “web-enabled” and provides data logging. If their customer does indeed
desire that capability, the OEM must purchase a license for the software and sell it to his end customer, which increases the cost of his equipment. Worse still, the OEM can’t simply hand the software to his customer and then walk away from it; he’s going to be responsible for the
installation, setup and support of it! In addition, the customer’s IT department needs to be trained, and will have to record and maintain yet another piece of software.
In comparison, the G3 series allows your OEM customers to advertise their machines as web enabled, with built-in data logging, and are easy to access with free software.