Frequently Asked Questions (FAQ) — ABB PM860

Q1: What power does the PM860 require?
A1: It operates on 24 V DC (±10%) with low power usage, typically under 8 W.

Q2: What are the CPU and memory specs?
A2: Around a 24 MHz ARM-based processor, with approximately 8 MB RAM and 8 MB Flash.

Q3: What communication interfaces does it offer?
A3: Two Ethernet ports (10/100 Mbps) and two RS‑232 serial ports for network and legacy device connections.

Q4: How scalable is the PM860?
A4: Up to 96 I/O modules (around 10,000 I/O points), suitable for extensive control networks.

Q5: Is there a safety variant available?
A5: Yes—SIL 3-certified versions (e.g., PM860H) allow combining safety and process control.

Q6: What is its reliability in industrial environments?
A6: Very high—MTBF around 200,000 hours plus robust design ensures long-term stability.

Q7: What are its physical dimensions and weight?
A7: Dimensions near 115 × 125 × 115 mm, with a typical weight of about 0.18 kg (some sources cite packaged weight up to 4.3 kg).

Q8: What operating temperatures can it withstand?
A8: Designed for –40 °C up to +70 °C environments.

Q9: What industrial sectors is this module used in?
A9: Common in power generation, chemical, oil & gas, water treatment, and manufacturing plants.

Q10: How energy-efficient is the PM860?
A10: Very—consumes around 8 W, reducing facility energy usage.