Abstract: Individual base plate modules can be furnished with individual signals, however, several base plate modules can also be furnished with the same signal at the same point in time in a control device with in series disposed base plate modules (1). Protective ground conductors (7a), neutral conductors (6a), and signal conductors (8a) are provided for the electrical connections of the solenoid valves (2). Of these conductors, the protective ground conductor (7a) and the neutral conductor (6a) are pulled through and laid through in the longitudinal direction (10) of the series of modules. The signal conductor (8a) connects the solenoid valve (2) to the respective output of a signal source. A plurality of signal conductors (8) are disposed from the first to the last base plate module (1) and directed parallel in an electrically non-conductive support plate (13a), and adjoining to the pulled through and laid through protective ground conductor (7a) and to the neutral conductor (6a).