Abstract: A strain measurement device (10) for electrically determining a strain of a basic body, having a carrier film (12) which can be applied to the basic body (40), an electric measuring loop (14) printed onto the carrier film (12) of conductive printing paste/printing ink, which has a measuring element (16) for generating an electrical signal based on the strain and which has four conducting tracks (18) connected to the measuring element (16) for four-wire sensing, the four conducting tracks (18) each having an electrical conductor connection (22), the conducting tracks (18), the conductor connections (22) and the measuring element (16) being printed with the same printing paste. Furthermore, an overall device (38) with such a strain measurement device (10), the strain measurement device (10) being connected to a base unit (44) which has an evaluation unit (46) and an energy supply unit (48).

Abstract: A method for monitoring an IO link system and/or at least one IO link device of the IO link system and/or a plant, a plant part and/or a process that works together with the IO link system is suggested. The current (Im), the voltage (Um) and/or the electrical power (Pm) are here recorded (42) at at least one port of an IO link master of the IO link system. A monitoring of a condition (Z) and/or a detection of anomalies, errors, deviations and/or maintenance indicators and/or a prediction of a maintenance requirement, an error and/or an outage of the IO link system and/or of the at least one IO link device and/or of the plant, of the plant part and/or of the process in the IO link master occurs by means of a model (M) for the current, the voltage and/or the electrical power previously learned via machine learning.