michigan type 720 xxx the inputs of the power transducer 22 are electrically connected to the power bus 24 of a machine tool 26 the inputs of the transducer 22 read the voltage across and current flowing through the machine tool 26 the output of the power transducer 22 is a signal proportional to the power dissipated by the machine tool 26 the power monitor 24 receives this power signal filters it and translates it to a binary coded decimal bcd output a technique which is well known to those skilled in the art the power monitor 24 is of the type manufactured by the valeron corporation model 720 001 it is contemplated that any equivalent power meter adapted to read the current through and voltage across a given load and generate a bdc output signal could be substituted in place of the power transducer 22 and power monitor 24 additionally various power transducers 22 are available the exact model numbers of which will vary depending upon the application or the line voltage and current associated with the machine tool 26 the power meter 12 has a four parallel line bcd output and a four parallel line digit select output the eight parallel outputs.