Frequently Asked Questions (QA)

Q1: What is the primary function of CI855K01?
A1: It acts as the master interface between ABB’s core systems and the MB 300 fieldbus network.

Q2: What communications speed does it support?
A2: It operates at 10 Mbit/s, handling about 200 datasets per second.

Q3: Does it support redundancy?
A3: Yes—line-level redundancy ensures data link resilience; however, module redundancy is not supported.

Q4: Can it be replaced while the system is running?
A4: Yes—it supports hot-swapping during RUN mode, so no downtime is required.

Q5: How many MB 300 devices can be on the CEX-bus?
A5: Up to 12.

Q6: What are its dimensions and weight?
A6: Measures 59 × 185 × 127.5 mm and weighs about 0.7 kg.

Q7: What power does the module consume?
A7: Roughly 150 mA at 24 V DC (~3.6 W).

Q8: What environments can it handle?
A8: Rated for +5 °C to +55 °C operation, storage down to –40 °C, protected to IP20, and designed against corrosion (ISA G3).

Q9: What certifications does it hold?
A9: It holds CE, RoHS, WEEE, and marine certifications like BV, DNV-GL, LR.

Q10: What’s included in the module package?
A10: It includes the CI855 interface module and the TP853 baseplate.