The graphical programming software test.con now has its own documentation website. All Test Controllers of the company Gantner Instruments with the final designation …T, as f.e. Q.station 101DT or Q.gate IPT are programmed with this software. test.con is based on simple technical signs and symbols, which can be recognized easily by engineers and technicians. These signs and symbols are represented as function blocks. No programming language has to be learned to program a Controller. By connecting the function blocks, a function block network is developed and translated into a machine-readable network description and loaded into the controller.