Rieter

The structure of the Mill Information System (MIS)

Index

These systems mostly feature a three or four-level structure, starting at the lowest level, i.e. the level at which sensitive sensors are installed directly at special control points on the machines. They pick up the incoming figures and transmit them to the second level, the machine level. At the machine level, simple computers collect, transform and evaluate the signals arriving from the sensors. The summarized result is often indicated in a simple manner on a panel at the machine, informing the personnel responsible and enabling them to react immediately.

The third level is the level of the PC workstation, where the data collected at the machine level is selectively evaluated and informatively displayed in the supervisor‘s office, often also in graphic form (Fig. 101). The top level of the MIS is usually a commercial host computer.

Here again, all information arriving from the third (or perhaps second) level is collected in a condensed and compatible form by a local network and selectively evaluated in an easy-to-use form, e.g. as diagrams (Fig. 100).The detailed analysis of the second, third and fourth level enables immediate action to be taken if the slightest deviation occurs.

Fig. 101 – Diagram of SPIDERweb

Fig. 100 – The different levels of the SPIDERweb system