TIS have developed an electronic module for controlling the individual harness cords of the jacquard on raschel machines. The compact design and modular construction of the device allows warp density to be varied between 10 and 46, or between 50 and 100 threads per centimeter without modifying the harness. The control system consists of a microcomputer and hard disk for storing patterning data. All jacquard raschel models consisting pf 1 or 2 jacquard bars and straight-through harness (with or without knockover bar) can be equipped the TIS control modules.