Frequently Asked Questions (FAQ)

Q: What makes the BMXP3420102 different from the BMXP342010?
A: It offers double user memory (1 MB), hardware security (TLS, secure boot), and a smaller footprint.

Q: Can I program this CPU with the same tools as other M340 modules?
A: Yes, use EcoStruxure Control Expert (formerly Unity Pro) or SoMachine for configuration and programming.

Q: How is secure boot implemented?
A: A root-of-trust in the bootloader verifies firmware signatures before execution, preventing unauthorized code.

Q: Does it support cloud protocols?
A: Yes—OPC UA and MQTT enable direct, secure device-to-cloud communication without gateways.

Q: What is the maximum I/O scan rate?
A: The module supports I/O cycles under 1 ms, suitable for high-speed control loops.

Q: Is battery backup available for data retention?
A: Internal SRAM is volatile; use external SD card or network storage for persistent logging.

Q: Can I mount it on any DIN-rail?
A: It fits standard TS35 DIN-rail or can be panel-mounted with an optional bracket.

Q: How does the CPU handle extreme temperatures?
A: Operating between –20 °C and +60 °C, it is rated for most industrial settings.

Q: How many devices can connect to its Ethernet port?
A: Up to 4 simultaneous Modbus TCP clients or OPC UA sessions are supported.

Q: What certifications does it hold?
A: CE, UL 508, and cULus approvals for industrial control equipment.