Illustration of a system with symbols (previously: switching symbols) to illustrate the order of the individual devices and their functional workflow.
The circuit diagram must therefore allow the identification of the circuits for all activations and movement workflows. All hydraulic units and their connections must be shown on the circuit diagram.
The hydraulic schematic forms the basis of the pipework of the system and –– together with the function diagram — forms the basis of the search for an error.
The schematic is designed in accordance with DIN 24 347 and using switching symbols in accordance with DIN ISO 1219.