EPLAN P8 is a parts-oriented, object-based system. Without a macro, every time you insert a LOGO! 8.3 (e.g., 6ED1052-1MD08-0BA1), you must manually draw the power supply connections, the input circuits (I1 to I8, I9 to I16 for DM16 variants), the relay outputs, and the analog inputs.
By creating a Window Macro (EMA) or Symbol Macro (EMS), you achieve:
| ✅ Pros | ❌ Cons | |---------|---------| | Saves hours of manual symbol creation | Missing some newer LOGO! variants (0BA9?) | | Correct pin numbering & part numbers | No 3D model for panel layout | | Fully compatible with PLC addressing | Analog outputs sometimes not included | | Macro variables editable | Requires EPLAN license (not for free ECAD) | | Multi-language ready | Some community macros have pin errors |
If you search for Siemens Logo Eplan P8 Macrol regularly, you likely have dozens of macros. Stay organized: Siemens Logo Eplan P8 Macrol
Before building the macro, you must understand the physical I/O mapping of the target device. Let’s take the LOGO! 8.3 (6ED1052-1MD08-0BA1) as our example.
A proper macro must represent at least the main circuit (Power) and the Control circuit (Inputs/Outputs) on separate EPLAN pages.
Depending on the source (Siemens’ own EPLAN Data Portal or third-party macro libraries), you get: EPLAN P8 is a parts-oriented, object-based system
| LOGO! Model | Macro Types | Features | |------------|-------------|----------| | LOGO! 12/24 RCE (0BA8) | 2D multi-line, PLC box | 8 DI, 4 relay DO, analog inputs, Ethernet | | LOGO! 12/24 RC (0BA7) | 2D single-line | 8 DI, 4 DO, optional display | | LOGO! AM2 AQ | Macro module for expansion | 2 analog outputs | | LOGO! DM8 24R | Digital expansion macro | 4 DI, 4 DO relay | | LOGO! CMR2020 | Communication macro | IoT gateway integration |
Most macros are offered in EPLAN V2.7 to 2024 compatible formats.
Having one macro is good; having a library is better. For a standard Siemens LOGO! family, you need specific macros for: If you search for Siemens Logo Eplan P8
Create a master page called Macrol_Overview where every macro is displayed as a thumbnail for your engineering team to visually select.
| Terminal | Signal | EPLAN DT (example) | Description |
|----------|--------|--------------------|-------------|
| I1 | DI1 | -A1:X1 | Digital input 1 |
| I2 | DI2 | -A1:X2 | Digital input 2 |
| I3 | DI3 | -A1:X3 | Digital input 3 |
| I4 | DI4 | -A1:X4 | Digital input 4 |
| I5 | DI5 | -A1:X5 | Digital input 5 |
| I6 | DI6 | -A1:X6 | Digital input 6 |
| I7 | DI7 | -A1:X7 | Digital input 7 |
| I8 | DI8 | -A1:X8 | Digital input 8 |
| Q1 | DO1 | -A1:X9 | Digital output 1 |
| Q2 | DO2 | -A1:X10 | Digital output 2 |
| Q3 | DO3 | -A1:X11 | Digital output 3 |
| Q4 | DO4 | -A1:X12 | Digital output 4 |
| L1 | +24V DC | -A1:X13 | Power supply + |
| N | 0V DC | -A1:X14 | Power supply - |
| PE | Functional earth | -A1:PE | Earth / shielding |