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PLC Siemens LOGO

Found 14 products
Siemens × LOGO-8 ×
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Siemens LOGO 8: when we pick it over a timer relay

We ship LOGO 8 to customers building pump-station panels, gate-automation cabinets, greenhouse controls, small HVAC. Up to 24 I/O, no PID loops, program written in a couple of hours with LOGO! Soft Comfort. If a timer relay is too dumb but a S7-1200 is overkill — this is the spot.

Our Siemens PLC catalog carries 21 models in this line: LOGO 8 (13 units), LOGO 8 Basic (4), LOGO 8 Pure (4). Supply choices per Siemens datasheet: 12/24V DC, 24V DC, 100–240V AC, 230V AC. Pick to match the cabinet bus.

Basic or Pure: which we recommend

Basic ships with a built-in text display and Ethernet web server. Field tech reads I/O state straight off the cabinet door; the owner can also log in from a browser. We pick Basic when the site is unattended and somebody needs fast diagnostics without a laptop. Pump panels, store HVAC, irrigation.

Pure has no display, no web server. Roughly 25% cheaper, smaller housing. We use it where nobody touches the unit again: gate motors, dusk lighting, hobby greenhouses. Same programming software (free LOGO! Soft Comfort, FBD). One catch: firmware upload is USB only on Pure.

Applications

  • Smart home. Lighting, blinds.
  • Pump stations. Alternation, dry-run protection.
  • HVAC. Schedule or sensor-based control.
  • Greenhouses. Auto-irrigation, heating.
  • Gate automation. Limit switches, anti-crush.

Expansion

Base: 8 DI + 4 DO. Up to 4 DM/AM modules (max 24 DI + 16 DO). Expansion modules.

LOGO 8 vs S7-1200

LOGO 8 — up to 24 I/O, no PID needed. For 40+ I/O, Profinet, SCADA — S7-1200.

Warranty and delivery

24-month warranty. Nova Poshta delivery. Orders before 14:00 ship same day.

Frequently Asked Questions

What is Siemens LOGO! 8 used for?

LOGO! 8 is used for lighting, pumps, ventilation, simple control cabinets, smart home tasks and small automation projects.

What is the difference between LOGO Basic and Pure?

Basic has a display and keys on the device, while Pure is usually lower cost and works without a display. Choose based on local setup needs.

Can I add inputs and outputs to LOGO?

Yes, LOGO! 8 supports expansion modules, but power supply, signal type and exact model compatibility must be checked.

Does LOGO replace a full S7-1200 PLC?

For simple tasks, yes. For complex logic, fast processes, large I/O count or SCADA integration, S7-1200 is a better choice.