A cost effective multi-functional system for operating one dispensing valve and controlling peripheral equipment such as an advancing unit, rotospray etc. Process functions are programmed by means of a keypad. A visual display on the front panel indicates each seperate operational step. Faults are also indicated and signalled electrically. The quantity of product released is determined both by the product pressure and the length of time the dispensing valve is open. This system can be integrated into fully automated production lines using its PLC interface.