Electropneumatic solenoid valve for a field device of a process plant, such as a power plant, a chemical plant, a food processing plant, or the like, comprising: an electromagnetic actuator with a coil that can be energized and a solenoid armature movable relative to the coil, at least one air chamber into which three air channels (11, 21, 51) open, wherein the three air channels comprise a first air channel, a second air channel, and a control air channel; at least one valve member which, in a first closed position, closes the first air channel and opens the second air channel and which, in a second closed position, closes the second air channel and opens the first air channel; at least one driver, in particular an actuating rod or shaft, which is movable in a first actuating direction and in a second actuating direction opposite to the first actuating direction and which connects the valve member to the solenoid armature for force transmission, wherein at least one driver biasing means, such as a spring, is arranged between the driver and the solenoid armature to provide a biasing force on the driver in a driving direction corresponding to the first or second actuating direction (S1, S2) and wherein at least one return biasing means, such as a return spring, is provided to provide a return force on the driver opposite to the driving direction, characterized by an analog and/or digital diagnostic electronics that detects the current flowing through the coil to provide a diagnostic result based on at least a first local current flow minimum correlating to an impact of the valve member on a valve seat considering a stop time difference between the first local current flow minimum and a second local current flow minimum correlating to an impact of the solenoid armature on a stopper. an electromagnetic actuator with a coil that can be energized and a solenoid armature movable relative to the coil, at least one air chamber into which three air channels (11, 21, 51) open, wherein the three air channels comprise a first air channel, a second air channel, and a control air channel; at least one valve member which, in a first closed position, closes the first air channel and opens the second air channel and which, in a second closed position, closes the second air channel and opens the first air channel; at least one driver, in particular an actuating rod or shaft, which is movable in a first actuating direction and in a second actuating direction opposite to the first actuating direction and which connects the valve member to the solenoid armature for force transmission, wherein at least one driver biasing means, such as a spring, is arranged between the driver and the solenoid armature to provide a biasing force on the driver in a driving direction corresponding to the first or second actuating direction (S1, S2) and wherein at least one return biasing means, such as a return spring, is provided to provide a return force on the driver opposite to the driving direction, characterized by an analog and/or digital diagnostic electronics that detects the current flowing through the coil to provide a diagnostic result based on at least a first local current flow minimum correlating to an impact of the valve member on a valve seat considering a stop time difference between the first local current flow minimum and a second local current flow minimum correlating to an impact of the solenoid armature on a stopper.