Description
| Product model | 57310255-AL |
| Manufacturer | ABB |
| Product category | Communication module (Fieldbus interface) |
| Module designation | CI854 |
| Supported protocol | PROFIBUS DP (Master and Slave modes) |
| Data transfer rate | 9.6 kbps to 12 Mbps (auto-baud or fixed) |
| Backplane interface | AC 800M internal bus (S800 I/O compatible) |
| Max. remote I/O stations | Up to 126 slaves per segment |
| Redundancy support | Yes (with redundant CPU and dual CI854 modules) |
| Operating temperature | 0°C to +60°C |
| Mounting method | Plug-in module for AC 800M rack (no DIN rail) |
| Certifications | CE, UL 61010-1, IEC 61326, ATEX (for hazardous area variants) |
Product Introduction
The ABB 57310255-AL is the official order code for the CI854, a high-performance PROFIBUS DP communication module designed exclusively for ABB’s AC 800M programmable logic controller platform. This module enables seamless integration of distributed I/O, drives, valves, and third-party field devices into ABB’s System 800xA or standalone AC 800M control architectures. As a core enabler of modular automation, the ABB 57310255-AL supports both master and slave operation, allowing flexible network topologies in complex industrial processes.
Engineered for reliability in demanding environments like power generation, oil & gas, and heavy industry, the ABB 57310255-AL delivers deterministic data exchange at speeds up to 12 Mbps while maintaining full compatibility with S800 and S900 I/O subsystems. Its native integration with Control Builder M software simplifies configuration, diagnostics, and online monitoring—reducing engineering time and minimizing commissioning errors. The module also supports hot-swap in redundant configurations, ensuring continuous operation during maintenance.
In modern process automation, fieldbus connectivity remains critical for cost-effective signal distribution. The ABB 57310255-AL provides a proven, certified path to connect legacy and new PROFIBUS devices without gateways or protocol converters—preserving investment while enabling scalable system expansion.
Core Advantages and Technical Highlights
Core Advantages and Technical HighlightsNative AC 800M integration: The ABB 57310255-AL plugs directly into the AC 800M controller backplane and is recognized instantly in Control Builder M. No external drivers or GSD file management is needed for ABB I/O—though third-party devices are fully supported via standard GSD imports. This tight coupling ensures low-latency data exchange and unified diagnostics.
Robust redundancy capability: When used in pairs with redundant AC 800M CPUs, two ABB 57310255-AL modules provide automatic failover on PROFIBUS segments. If the primary channel fails, the backup takes over within milliseconds—critical for boiler protection, turbine control, or safety-related loops where communication loss cannot be tolerated.
High device density and speed: A single ABB 57310255-AL can manage up to 126 PROFIBUS slaves, including remote I/O clusters like ABB’s TB850-based S900 stations. With support for 12 Mbps transmission, it handles high-speed applications such as motor control centers or fast interlocking systems without cycle time penalties.
Comprehensive diagnostic visibility: The module reports detailed status—including slave health, cable faults, baud rate mismatches, and station timeouts—directly to the AC 800M CPU and System 800xA operator station. Engineers can pinpoint field issues from the control room, reducing troubleshooting time in large plants.
Industrial-grade resilience: The ABB 57310255-AL features galvanic isolation (500 Vrms) between backplane logic and fieldbus lines, protecting the controller from ground loops and surges. Its conformal-coated PCB option (available in -AL variant) enhances resistance to humidity and corrosive atmospheres—common in coastal or chemical facilities.
Typical Application Scenarios
The ABB 57310255-AL is a cornerstone in large-scale process control systems where distributed architecture reduces wiring costs and improves maintainability. In thermal and hydroelectric power plants, it connects boiler feed pumps, condenser vacuum systems, and auxiliary switchgear over PROFIBUS—enabling centralized monitoring from the main control room while meeting IEEE and IEC grid compliance requirements.
In oil & gas terminals and refineries, the ABB 57310255-AL links remote wellhead controllers, custody metering skids, and fire/gas detection panels to the central AC 800M system. Its ATEX-ready design (with proper enclosure) allows deployment in Zone 2 hazardous areas. The redundancy feature ensures continuous communication during critical shutdown sequences.
For water and wastewater utilities, the ABB 57310255-AL integrates lift stations, chemical dosing units, and UV disinfection systems across wide geographic areas using fiber-optic PROFIBUS extenders. Because it supports both master (to field devices) and slave (to higher-level DCS) modes, it also acts as a gateway between legacy systems and new ABB platforms during phased migrations.
Related Model Recommendations
- ABB 57310255-AK: Non-conformal coated version; same function, standard environment use
- ABB CI864: Foundation Fieldbus H1 communication module for the same AC 800M platform
- ABB CI874: Ethernet/IP and Modbus TCP interface module—modern alternative for IP-based networks
- ABB TB850: Terminal base required for S900 I/O modules connected via 57310255-AL
- ABB AC 800M PM864: Primary CPU that hosts the 57310255-AL in non-redundant systems
- ABB AC 800M PM865: Redundant-capable CPU for dual 57310255-AL configurations
- ABB DSMB 147: Optical link module used with 57310255-AL for long-distance PROFIBUS over fiber
- Siemens IM 153-2: Comparable PROFIBUS interface for ET 200M—but not compatible with ABB systems
Installation, Commissioning and Maintenance Instructions
Installation preparation: The ABB 57310255-AL must be installed in an AC 800M controller rack with adequate backplane power budget. Verify the CPU firmware supports CI854 (Control Builder M v5.0 or later). Insert the module firmly into the designated slot—typically adjacent to the CPU—and secure the retaining screw. Connect the PROFIBUS cable to the 9-pin D-sub connector using shielded, twisted-pair cable (e.g., Belden 3076R), terminating only at the segment ends with 220Ω resistors. Ensure proper grounding of the cable shield at one point to avoid ground loops.
Maintenance suggestions: The ABB 57310255-AL requires no routine maintenance. However, monitor its status LEDs: green = operational, red = fault (e.g., bus short, missing termination). Use Control Builder M’s I/O Manager to view real-time diagnostics for each slave. If replacing a failed unit, ensure the new ABB 57310255-AL matches the hardware revision (check label). In redundant systems, replace modules during a planned maintenance window using hot-swap procedures to avoid bus disruption. Keep spare modules stored in ESD-safe packaging.
