Modular control apparatus

A control apparatus for automated control of a technical installation, comprising:

• a plurality of modules which are arranged next to one another in a longitudinal direction, wherein the modules each comprise a bus module part, and wherein a first module from the plurality of modules additionally comprises an electronics module part and a connection module part,
• wherein the electronics module part and the bus module part of said first module are mechanically and electrically combined to form a first combined arrangement, and wherein the electronics module part and the connection module part of said first module are mechanically and electrically combined to form a second combined arrangement,
• wherein each bus module part comprises a housing having a first side and a second side opposite from the first side in the longitudinal direction, and comprises a first bus connector on the first side for electrical connection to a first neighboring bus module part adjacent in the longitudinal direction, and comprises a second bus connector on the second side for electrical connection to a second neighboring bus module part adjacent in the longitudinal direction, the first and second bus connectors establishing a supply voltage bus,
• wherein the connection module part comprises a first electrical contact and the electronics module part comprises a first electrical mating contact, which, in the second combined arrangement, makes contact with the first electrical contact for electrical connection between the electronics module part and the connection module part,
• wherein the electronics module part comprises a further electrical contact and the bus module part of said first module comprises a further electrical mating contact, which, in the first combined arrangement, makes contact with the further electrical contact for electrical connection between the electronics module part and the bus module part of said first module,
• wherein the bus module part of said first module further comprises at least one movable element, which is selectively movable between a first position and a second position, the movable element, in the first position, providing an electrical connection between the first bus connector and the second bus connector and, in the second position, providing an insulation point between the first bus connector and the second bus connector,
• wherein the connection module part further comprises an external connector for applying an external supply voltage, and
• wherein the electronics module part feeds the external supply voltage from the connection module part to the bus module part using the further electrical contact and the further electrical mating contact, while the movable element is in the second position.