Device for identifying the cause of a standstill in a plant, in particular a filling plant, the plant having at least one value-adding first plant portion, at least one second plant portion upstream of the first plant portion and at least one third plant portion downstream of the first plant portion, it being possible to determine values of a consumed power for each plant portion (3, 4, 5) by means of a sensor unit of the device, on the basis of a current signal belonging to the relevant plant portion (3, 4, 5), a comparison unit of the device being provided and designed to compare the values of the power consumed with a relevant determinable machine-specific comparison value for each plant portion (3, 4, 5), the relevant plant portion (3, 4, 5) being at a standstill if the value of the power consumed is less than the comparison value at a point in time T, on the basis of the standstill of the first plant portion, which lasts longer than a predefinable period of time, an identification unit of the device being provided and designed to identify, using the values of the power consumed by the plant portions (3, 4, 5), which of the plant portions (3, 4, 5) has caused a standstill, the identification unit being provided and designed to determine at least one first value dependent on the power consumption of the plant portions (3, 4, 5) after the period of standstill of the first plant portion and, based on a level of the first value, to assign the first value to a plant portion, characterized in that the second plant portion has n plant portion elements n i where i = 1,..., n', and the third plant portion has m plant portion elements m i where i = 1,..., m', the element n 1 being directly upstream of the first plant portion and the element n 1+i being directly upstream of the element n i and the element m 1 being directly downstream of the first plant portion and the element m i+1 being directly downstream of the element m i, after the second plant portion or the third plant portion has been assigned to the first value by means of the identification unit provided and designed for this purpose, to determine at least one (i+1)th value, starting with i = 1, dependent on the portion elements, of the power consumption of the plant portion elements n i and n i+1 of the second plant portion or m i and m i+1 of the third plant portion and, taking into account the (i+1)th values, to identify the cause of the standstill by means of the identification unit provided and designed for this purpose, the identification unit being provided and designed, when the plant portion element n i+1 is identified, to carry out a comparison with the directly upstream plant portion element n i+2 thereof or, when the plant portion element m i+1 is identified, to carry out a comparison with the directly downstream plant portion element m i+2 thereof, and the first plant portion k having plant portion elements k i correlated to one another where i = 1,..., k' with a correlation value of at least 0.8, element k 1 being directly upstream of the value-adding contact portion element k 1 and element k i+1 being directly upstream of element k i, after the first plant portion has been assigned to the first value depending on the identification unit provided and designed for this purpose, to determine at least one (i+1)th value, starting with i = 1, dependent on the portion elements, of the power consumption of the plant portion elements k i and k i+1 of the assigned plant portion (3, 4, 5) and, taking into account the (i+1)th values, to identify the cause of the standstill by means of the identification unit provided and designed for this purpose, the identification unit being provided and designed, when the plant portion element k i+1 is identified, to carry out a comparison with the directly upstream plant portion element thereof.