Patent ID: 7016792

Claim:
An apparatus for measuring values comprising a pick-up unit including a measured values pick-up and a data memory connected to said measured values pick-up, said apparatus further comprising an evaluating device and at least two electrical conductors forming a conductor pair connecting said evaluating device to said pick-up unit, said at least two electrical conductors having the same or approximately the same electrical potential during a measuring operation, whereby data predetermined by said evaluating device can be read-out from said data memory and/or can be recorded, wherein said data memory is constructed as a data memory module which is wired into said at least two electrical conductors forming said conductor pair having said same or approximately the same electrical potential during said measuring operation, said apparatus further comprising a current limiting circuit for switching said data memory module from said measuring operation to a communication mode for performing a data transmission, and wherein said pick-up unit comprising said data memory has at its disposal, in a three, four, five and six conductor technique for connecting said evaluating device to said pick-up unit, the same connector conductor number as a conventional pick-up without a data memory.