ABB CI855

¥9,999.00

The ABB CI855 is a communication interface module from ABB’s AC 800M controller family, used to connect ABB’s AC 800M control systems to industrial networks and fieldbus segments for communication with remote I/O, drives, and field devices. As a genuine ABB module, the CI855 is manufactured to ABB’s original specification, ensuring protocol compliance, electrical compatibility, and reliable performance in process and power automation installations. The CI855 provides a fieldbus master interface that integrates with the AC 800M controller architecture, making it a dependable choice for distributed control architectures where network connectivity and diagnostics are critical. The ABB CI855 installs in the AC 800M I/O rack and is configured through ABB’s engineering tools, allowing engineers to set network parameters, device addressing, and diagnostics efficiently. With its support for hot-swap and redundant system configurations, the CI855 is well suited to demanding process environments where uptime is essential. The CI855 is widely deployed in process industries and is valued for its reliability and spare-part availability.

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Description

Product Parameters

  • Model: CI855

  • Product Type: Communication Interface Module (AC 800M family)

  • Application: ABB AC 800M control systems

  • Protocol: Fieldbus master interface (confirm specific protocol from datasheet)

  • Transmission Rate: Per protocol specification (confirm from datasheet)

  • Redundancy: Supports redundant configurations (confirm per system design)

  • Configuration: Via ABB engineering tools

  • Mounting: AC 800M I/O rack

  • Operating Environment: Industrial process environment

(Confirm exact protocol, transmission rate, channel count, and redundancy behavior from the official ABB datasheet for CI855.)

Advantages and Features

  • Native AC 800M integration — the CI855 installs directly in the AC 800M I/O rack for streamlined configuration.

  • Fieldbus master capability — connects ABB controllers to a wide range of field devices and remote I/O.

  • Redundancy support — designed for high-availability network architectures.

  • Hot-swap capability — enables maintenance without full system shutdown (per system configuration).

  • Module diagnostics — simplifies troubleshooting and reduces mean time to repair.

  • Proven reliability — part of ABB’s widely deployed AC 800M communication family.

Application Cases and Fields

  • Oil & Gas — distributed control and remote I/O networks

  • Power Generation — plant control system communication

  • Chemical & Petrochemical — fieldbus-based process control

  • Water/Wastewater — plant-wide distributed I/O

  • Pulp & Paper / Metals — drive and field device integration

The CI855 is commonly deployed where fieldbus communication with AC 800M controllers is required.

Comparison with Competing Products

Aspect ABB CI855 ABB CI854AK01 (PROFIBUS DP) Generic third-party interface
System integration Native AC 800M Native AC 800M Requires gateway/mapping
Protocol Confirm from datasheet PROFIBUS DP Variable
Redundancy Supported Supported Often limited
Diagnostics Module-level Module-level Often limited
Support/warranty OEM-backed OEM-backed Varies

Selection Suggestions and Precautions

  • Confirm the specific fieldbus protocol supported by CI855 and verify it matches your network design.

  • Verify network topology, transmission rate, and device count against your application before ordering.

  • Confirm compatibility with your AC 800M controller and I/O rack revision.

  • Check firmware and configuration compatibility with your engineering tools.

  • Plan redundancy requirements and confirm the module supports your architecture.

  • Ensure proper fieldbus cabling, termination, and grounding per ABB guidelines.

  • Source from authorized channels to avoid counterfeit or mismatched revisions of the CI855.

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