❓ Frequently Asked Questions (FAQ)

Q1: What is included in the PM861AK02 package?
A1: The package includes the processor module, battery unit, and a 64 MB CompactFlash memory card pre-installed.

Q2: Can the PM861AK02 be used in redundant systems?
A2: Yes, it fully supports CPU redundancy when paired with a second identical unit and redundancy accessories.

Q3: How is the unit programmed or configured?
A3: It is programmed using the Control Builder engineering software within the 800xA platform.

Q4: What type of communication does it support?
A4: It supports Ethernet, serial communication, and can be expanded to PROFIBUS, MODBUS, and FOUNDATION Fieldbus.

Q5: What makes PM861AK02 different from PM861AK01?
A5: PM861AK02 may feature updated memory or firmware support for newer system integrations, though it shares the same core architecture.

Q6: Is the CompactFlash card field-replaceable?
A6: Yes, users can replace or upgrade the CompactFlash card on-site if required.

Q7: What are the operating conditions for this CPU?
A7: It operates in temperatures from 0°C to +55°C and should be housed in a control cabinet.

Q8: Can I use this CPU with third-party I/O modules?
A8: It is designed for use with S800 and S800L I/O modules but may integrate with third-party systems using supported protocols.

Q9: Is it suitable for safety-critical applications?
A9: Yes, it is SIL2 and SIL3 ready, depending on the overall system configuration.

Q10: What happens in the event of a power failure?
A10: The battery unit ensures memory retention, and in redundant systems, failover occurs automatically if properly configured.