IC754VSI12CTD in the cutting process has a good control of the pressure, cut into the amount, according to different glass materials should be set to different pressures and cut into the amount, in addition to cut off the steps are also more important, generally used in the steps are: ① CF surface cut ② TFT surface cut ③ TFT surface cut ④ C F surface cut. In the scribing equipment are now used in the multi-knife (previously a single knife work), generally in the 5-7 knives, this system uses 5 knives, in this system the knife’s cut into the amount of left and right movements are controlled by servo systems, and are used in high-speed movement, which can greatly improve the efficiency of the work.

IC754VSI12CTD adopts Q06H CPU as the control unit, IOP310 as the positioning unit of the servo system, and also adopts two IOP310 communication module units, one of which is connected with the human-machine interface (A970GOT), and the other is connected with the image processing system, which is mainly used for the identification of Mark points (that is, marking points), and then produces a deviation correction value. In addition, the PC1 connected to the QJ74C24 is a special machine for setting the mechanical parameters and working parameters of the system as well as programming the cut-off procedure.

The communication of IC754VSI12CTD uses a special communication programme software. This system works by using deviation correction. For a new variety, the first Mark point recognition, login, MARK point shape can be arbitrary, but the general use of the word ‘ten’ for the Mark point marking, as shown in Figure 4, is the image processing system on the Mark point recognition process, recognition after the generation of a deviation from the amount of correction, based on the amount of deviation from the calculation of the reference position.