SIMATIC S7-1500 — high-performance controllers for complex industrial automation
SIMATIC S7-1500 is Siemens flagship series of programmable logic controllers for the most demanding automation tasks. While Siemens PLCs in the LOGO 8 and S7-1200 lines cover small and medium-scale applications, the S7-1500 is built for large distributed control systems where speed, integrated safety, and advanced communication are non-negotiable.
Key advantages of the S7-1500
- High performance — bit instruction execution from 1 ns; CPU 1518 processes up to 60,000 tags/s.
- PROFINET IRT — isochronous real-time communication for precision motion control with sub-microsecond accuracy.
- Safety Integrated — built-in PROFIsafe safety functions up to SIL 3 / PLe without a separate safety controller.
- OPC UA — native OPC UA server and client for M2M communication and Industry 4.0 integration.
- Motion Control — axis control, cams, and synchronisation for up to 128 axes on a single CPU 1517/1518.
- Built-in web server — diagnostics and monitoring via browser with no additional software required.
- Modular design — up to 32 modules per rack; ET 200MP distributed I/O support via PROFINET/PROFIBUS.
S7-1500 vs S7-1200 — which to choose
Both series are programmed in TIA Portal and feature PROFINET, but they differ in scale and capability:
| Parameter | S7-1200 | S7-1500 |
|---|---|---|
| Bit instruction execution time | 0.08 us | from 1 ns (CPU 1518) |
| Max. modules per rack | 8 | 32 |
| OPC UA | from FW 4.4+ | built-in, full |
| Safety Integrated | no | yes (F-CPU variants) |
| Motion Control axes | up to 4 | up to 128 |
| PROFIBUS (DP Master) | via CM module | built-in (select CPUs) |
| Application | Conveyors, pumps, HVAC | Metallurgy, chemicals, energy |
Choose S7-1200 when the project needs up to 8 modules and no SIL 3 safety. Choose S7-1500 when you need high-speed processing, Safety Integrated, native OPC UA. For migrating legacy S7-300, Siemens recommends S7-1500 via TIA Portal Migration Tool.
S7-1500 expansion modules and accessories
The base CPU can be expanded with expansion modules:
- Signal modules (SM) — discrete I/O, analogue I/O, thermocouple and RTD modules.
- Communication modules (CM/CP) — PROFIBUS DP, RS232/485, Modbus TCP.
- Technology modules (TM) — high-speed counters up to 400 kHz, encoders, hardware PID controllers.
- Power supply modules (PS) — 24V DC system and 120/230V AC load supplies.
Warranty and delivery
All SIMATIC S7-1500 controllers ship with official manufacturer warranty. Delivery across Ukraine via Nova Poshta — Kyiv, Kharkiv, Dnipro, Odesa, Lviv. Payment by bank transfer with VAT for legal entities or cash on delivery.
