Siemens SIMATIC S7-1500 Function Manual page 94

Call function block
To call the function block in the user program, follow these steps:
1. In the "Program blocks" folder, select the cycle OB (e.g., OB1) in which you want to call
the function block and open the cycle OB with a double-click.
2. Select the function block you want to call in the "Program blocks" folder.
3. Drag the function block into the instruction part of the cycle OB.
The "Call options" window opens.
Figure 6-14
4. Confirm the call options by clicking "OK".
Result: You have called the alarm block in the user program and created an instance alarm.
Diagnostics
Function Manual, 11/2019, A5E03735838-AF
Call function block
6.5 Example program for program alarms
Alarms
93