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- CI857K01/CI857
- AC 800M Communication Interface Module
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- 59 × 185 × 127.5 mm
- 0.7kg
- 3BSE018144R1
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ABB CI857K01 / CI857 (3BSE018144R1) — Product Overview
Brand: ABB
Series: AC 800M / System 800xA — INSUM Ethernet Communication Interface
Product Introduction
The CI857K01, also known simply as CI857 (ABB part number 3BSE018144R1), is an Ethernet-based INSUM fieldbus interface module. Designed for ABB’s AC 800M controllers, it enables seamless integration with the INSUM Ethernet network, providing reliable, long-distance data exchange with precise time-stamped control loops. The interface is hot-swappable and powered through the controller’s backplane—no separate power needed.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | CI857K01 / CI857 (3BSE018144R1) |
| Protocol | INSUM Ethernet (10 Mbit/s) – Master mode |
| Master/Slave | Master |
| Transmission Speed | 10 Mbit/s |
| Line / Module Redundancy | Line: No Module: No |
| Hot‑Swap | Yes (in RUN mode) |
| Max MCUs per AC 800M | 6 CI857 units per controller |
| Max INSUM Devices per CI857 | Up to 128 MCUs |
| MB300 Gateway Limit | Max 2 INSUM → TCP/IP gateways per CI857; each supports 128 devices |
| CEX‑Bus Power | Powered by the AC 800M backplane via CEX‑Bus |
| Max Connection Distance | Extended via standard Ethernet cabling (machine dependent) |
| Dimensions (W×H×D) | 59 × 185 × 127.5 mm (2.3″ × 7.3″ × 5.0″) |
| Weight (incl. base) | Approx. 0.70 kg (1.5 lb) |
| Power Use | ~150 mA @ 24 V DC (~3.6 W) |
| Operating Temp. | +5 °C to +55 °C |
| Storage Temp. | –40 °C to +70 °C |
| Protection Rating | IP20 |
| Certifications | CE, RoHS, WEEE; ISA-S71.04 corrosion G3 |
Product Applications
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Process automation, including long-distance signal distribution and motor synchronization within ABB’s 800xA systems
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Ideal for environments needing time-distributed control loops, accurate time-stamping, and extended Ethernet ranges
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Bridges INSUM field communication with devices like MCUs, gateways, and redundant network nodes
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Supports high-availability systems where fieldbus uptime and live maintenance are required (hot-swap capable)
Product Advantages
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Seamless INSUM integration: High-capacity master interface for control loops up to six CI857 modules and 128 MCUs per CI857
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Hot-swap ready: Replace interface units under power without stopping processes
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Field-hardened design: Industrial IP20 rating with robust corrosion protection and extended temperature range
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Powered via backplane: No external power needed—draws clean power through CEX-Bus
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ABB-certified quality: Designed for industrial Ethernet environments and ABB’s modular architecture
Related Models in the Same Series
| Model | Description |
|---|---|
| CI857K01 / CI857 | INSUM Ethernet interface (this model) |
| CI854AK01‑EA | Profibus DP/V1 fieldbus interface |
| CI855K01 | MasterBus 300 interface |
| CI856K01 | S100 I/O interface kit |
| CI858K01 | DriveBus interface |
Popular ABB Communication Modules
| Model | Function |
|---|---|
| CI854AK01‑EA | Profibus DP/V1 interface |
| CI855K01 | MasterBus 300 interface |
| CI856K01 | S100 I/O field interface |
| CI860K01 | Foundation Fieldbus HSE interface |
| CI873K01 | Ethernet/IP / DeviceNet interface |
FAQ (QA Format)
Q1: What network does CI857K01 use?
A1: It connects AC 800M controllers to ABB’s INSUM Ethernet network, acting as a master over a 10 Mbit/s link.
Q2: Can I swap this module without shutting down the system?
A2: Yes—it supports hot-swap capability during RUN.
Q3: What’s its power source?
A3: Powered via the CEX-Bus from the AC 800M controller—no extra power wiring needed.
Q4: How many devices can a CI857 manage?
A4: Up to 128 MCUs per CI857, and up to 6 CI857 masters per controller.
Q5: What are its physical specs?
A5: Measures 59 × 185 × 127.5 mm, weighs about 0.70 kg (1.5 lb).
Q6: Does it provide redundancy?
A6: No line or module redundancy—but supports multi-master setup and backup paths.
Q7: What operating environment is it designed for?
A7: Indoor cabinet use, +5 °C to +55 °C, IP20 rating, G3 corrosion resistant.
Q8: Where can I use this interface?
A8: Common in process plants, power systems, switchgear requiring distributed control and time sync.
Q9: What’s its power consumption?
A9: Around 150 mA @24 V DC (~3.6 W).
Q10: Is it globally certified?
A10: Yes—complies with CE, RoHS, WEEE, and industrial corrosion & safety standards.