Product Comparisons
Mitsubishi MELSEC FX5U vs Siemens S7-1200
Two popular compact PLCs; compared by processing speed, motion, ecosystem and engineering software.
Updated: 2026-07-06
| Technical Comparison | MitsubishiMELSEC FX5U | SiemensSIMATIC S7-1200 |
|---|---|---|
| Engineering software | GX Works3 | TIA Portal |
| Built-in motion | Strong pulse/positioning | Basic, extends via PROFINET |
| Reach (Europe) | Mid | Very high |
MitsubishiMELSEC FX5U
View productPros
- Fast instruction processing
- Built-in positioning/pulse outputs
- Tight integration with MELSERVO
Cons
- GX Works3 learning curve
- Less widespread than S7 in Europe
SiemensSIMATIC S7-1200
View productPros
- Very widespread, broad ecosystem
- Built-in PROFINET
- Integrated engineering in TIA Portal
Cons
- S7-1500 needed for high axis counts
- Some advanced functions live in the higher tier
Verdict
For built-in positioning power and a Mitsubishi servo backbone, FX5U is efficient. For a broad ecosystem, spare-part availability and a PROFINET-based standard, S7-1200 is the safe pick. The existing plant brand is usually the deciding factor.
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