Macros — Eplan Siemens S7-1200

Macros allow you to store the entire PLC schematic—including the power supply, the 24V distribution, the input fuses, and the output relays—as a single, intelligent object.

It feels repetitive because it is repetitive. macros eplan siemens s7-1200

In EPLAN, a macro is a saved snippet of a circuit. Think of it like a Function Block (FB) in the S7-1200. Just as you wouldn't rewrite a PID control loop from scratch for every motor, you shouldn't redraw the wiring for an S7-1214C every time. Macros allow you to store the entire PLC

This means your TIA Portal tag table and your EPLAN schematic are now mirror images without manual typing. Think of it like a Function Block (FB) in the S7-1200

Bridging the Gap: Using Macros in EPLAN to Supercharge Your Siemens S7-1200 Workflow

When you build your macro, assign the symbolic names in the EPLAN macro properties. When you insert the macro into a new project, EPLAN will ask for a "Structural identifier" (e.g., =Conveyor1). Type it once. EPLAN automatically renames all tags inside the macro to "Conveyor1_Motor_1_Run".

Open your largest completed S7-1200 project. Select the entire PLC schematic in EPLAN. Go to Page > Macro > Save . Name it Base_S7-1200_16DI_16DO . Test it on your next small project.