Overview
Configured for high-speed deterministic data exchange in MasterBus 300 / 300E network, the ABB CI671 3BSE004043R1 (CI671 Communication Interface Module) provides direct physical/electrical execution for controller-to-controller and controller-to-station communication within Advant OCS architectures.
Hardware Specifications
| Parameter | Specification |
|---|---|
| ModelBrand | ABB CI671 3BSE004043R1 |
| Origin | Sweden / Switzerland |
| Weight | Approx. 0.6 kg |
| Dimensions | 1-slot subrack module width |
| OperatingTemp | +5 degC to +55 degC |
| PowerConsumption | +5 V DC backplane supply (typical) |
| NetworkProtocol | MasterBus 300 / MasterBus 300E |
| DataRate | 10 Mbit/s |
| Interface Type | AUI / BNC (via external transceiver) |
Backplane Communication and Deterministic Network Execution
The CI671 module integrates into the Advant Controller backplane architecture where internal bus timing is synchronized with MasterBus 300 / 300E communication cycles. Data exchange is executed through deterministic scheduling aligned with controller scan cycles, minimizing jitter in peer-to-peer transfer between AC 410 and AC 450 systems.
Backplane coupling supports structured data mapping between local I/O image tables and network transmission buffers, with fixed-cycle telegram handling over Ethernet-based physical transport. External transceiver adaptation (e.g., AUI to coaxial or fiber media via dedicated interface units) defines the final physical layer topology.
Frequently Asked Questions
Q: Does CI671 support hot-swap insertion in an active Advant Controller rack?
A: The module is not designed for live insertion under energized backplane conditions. System power-down is required to avoid bus arbitration corruption.
Q: What is the backplane power load behavior of CI671?
A: The module draws internal +5 V DC from the subrack backplane. Load is constant during operation and tied to communication cycle activity rather than I/O signal variation.
Q: Can firmware be upgraded via MasterBus network link?
A: No runtime firmware flashing is supported over MasterBus. Maintenance requires controller-level service procedures.
Field Installation Guidelines
CI671 shall be installed into a single designated Advant Controller subrack slot with verified backplane seating force applied uniformly on both guide rails. Ensure connector fingers are free of oxidation prior to insertion.
External transceiver (AUI or equivalent) must be connected using approved ABB media adapters only. Coaxial or fiber media shielding shall be grounded at a single-point earth reference to prevent ground loop formation across MasterBus segments.
Cable routing must maintain separation from high-voltage switching lines and VFD output conductors. Minimum bend radius for coaxial segments shall follow standard Ethernet trunk installation practice.
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