Standards updates, application engineering notes, and industry compliance guidance from our technical team.
Siemens vs Allen-Bradley PLC — The myth: “All modern PLCs have the same power‑supply tolerance — just use an external filter if you’re worried.” In practice, a 240 VAC generator that rides ±15 % with 2 kV common‑mode spikes (not uncommon on…
Siemens vs Schneider PLC — You have 600 mm of rack depth, a supply fan that moves 60 m³/h, and an ambient that can hit 38 °C when the sun bakes the enclosure.
Siemens vs Mitsubishi PLC — The datasheets say the same number: 0 to +60°C operating temperature for the Siemens S7-1200 (CPU 1214C) and the Mitsubishi FX5U. On a spec sheet that looks like a wash.
Siemens vs Omron PLC — You’ve read the brochures: Omron Sysmac NX1P2 boasts “integrated EtherCAT motion up to 8 axes” and Siemens S7-1200 claims “integrated motion (PTO) and PID”. Both are true.
Siemens vs Schneider PLC — You spec a Modicon M241 today because the sticker price beats the S7-1200 by about $180. First year, everything runs. Year two, you add a Modbus TCP device — no issue.
Siemens vs Mitsubishi PLC — The cost of picking the wrong micro PLC isn’t the purchase order — it’s the 18‑month re‑engineering bill when you outgrow the platform.
Siemens vs Allen-Bradley PLC — The most expensive PLC is not the one with the highest list price. It’s the one that looks cheap on the PO but, three years in, forces you to buy a second software seat, pay a systems integrator to port a…
Siemens vs Mitsubishi PLC — You need a controller for a 40‑axis packaging line and a supplier says “34 ns per instruction – fastest in class.” The other side says “85 ns, but the architecture doesn’t stall.” Which number actually…
Siemens vs Allen-Bradley PLC — You’re not buying a part number. You’re buying a ratio of throughput per watt, per dollar, per hour of engineering.
A cost controller's perspective on buying Siemens PLCs (S7-1200, S7-1500, LOGO!) — why the lowest quote is rarely the best deal, and when paying extra for delivery certainty actually saves you money.