How to Choose Delta PLCs?

Five‑Step Selection Method for the Perfect Match

Follow this systematic approach to select the right Delta PLC:

Step 1 – Determine I/O Scale

• Small (< 64 points) → DVP‑EC3, DVP‑SS

• Medium (64‑256 points) → DVP‑ES2, DVP‑EH3

• Large (> 256 points) → AS or AH series

Step 2 – Evaluate Speed & Performance

• AS: 40 ksteps/ms (32‑bit SoC) for high‑speed positioning/motion.

• AH: 12 ksteps/ms with redundant options.

• DVP: sufficient for standard logic.

Step 3 – Choose Output Type

• Relay (R) – for inductive loads (contactors, valves).

• Transistor (T) – for high‑frequency pulses (stepper/servo drives).

Step 4 – Consider Communication

• Modbus/Modbus TCP, CANopen, EtherCAT – select based on fieldbus requirements.

Step 5 – Use Delta’s DIASelector online tool (no registration, covers 5,000+ products).
Ouling Engineering offers one‑on‑one selection consultation for precise, cost‑effective choices.