FAQ – PM866‑2

Q1: What makes PM866‑2 stand out from PM866K01?
A1: PM866‑2 comes as a redundancy kit—complete with dual CPUs, baseplates, cabling, and batteries—ready for deployment without additional hardware.

Q2: Can it run as a single CPU if redundancy is not needed?
A2: Yes, although it’s over-specified for single use, it functions normally in non-redundant setups.

Q3: Can it handle real-time control tasks?
A3: Absolutely—it combines onboard memory and high-speed communication to handle complex control loops with reliability.

Q4: What protocols are supported?
A4: It supports Ethernet, Modbus, Profibus, and RS‑232/485 communication, depending on configuration.

Q5: Is it suitable for harsh conditions?
A5: Yes—some versions are rated IP65 and operate from –20 °C to +60 °C, making them ideal for demanding environments.

Q6: How is memory retained during a power failure?
A6: Battery-backed nonvolatile storage retains critical data even during outages.

Q7: Is the installation complex?
A7: Not at all—it mounts on standard DIN rails and the kit includes all necessary hardware.

Q8: Does it support future expansion?
A8: Yes—its design ensures compatibility with I/O modules and communication extensions via CEX bus.

Q9: What are its physical dimensions?
A9: Typically around 130 × 85 × 25 mm, though some variants may be slightly larger.

Q10: How much does it weigh?
A10: Between ~0.5 kg to 1.5 kg depending on variant and included components.