It is often necessary to represent the same device several times. The cross-reference then shows where each other part of the device is to be found in the schematic.
Electromagnetically actuated valves are often used in fluid power systems, and these are represented in the fluid schematic as a simplified solenoid symbol without connection point designations, for example using the 
symbol. If the intention is to document the fluid power and electrical engineering elements across disciplines within a single project, then EPLAN Fluid allows cross-references with solenoid symbols to be displayed in both the fluid and electrical schematics.
A cross-reference is only created and displayed under the following conditions:
- The device tag, the connection point designations, and the function definitions of the coil in the fluid and electrical schematics must agree with each other.
- The solenoid in the fluid schematic must not be a main function.
- The "Pair cross-reference" representation type must be set for the solenoid symbol in the fluid schematic.
- The "Electrical engineering" trade must be set for the solenoid symbol in the fluid schematic.
Note:
The correct "Pair cross-reference" setting for the representation type and "Electrical engineering" setting for the trade are automatically adopted as soon as you insert an electromagnetically actuated valve into the fluid schematic from one of the fluid power symbol libraries delivered with the system.
Example:
In the electric schematic (figure on the left) the solenoid references the operating element with the same name in the fluid power schematic. Conversely the operating element in the fluid power schematic (right) references the coil with the same name in the electrical schematic.
See also