Product Core Brief
- Model: DSCS131 57310001-LM
- Brand: ABB
- Series: Advant OCS / Advant Master (MasterFieldbus)
- Core Function: MasterFieldbus controller board providing deterministic fieldbus connectivity between ABB Advant controllers and subsystem devices.
- Product Type: MasterFieldbus Communication / Controller Board
- Key Specs: MasterFieldbus interface | Backplane-powered | Advant OCS / Master compatible
- Condition: New Original / New Surplus / Tested Used
Key Technical Specifications
- Module Type: MasterFieldbus controller board
- Part Number: 57310001-LM (DSCS131)
- System Compatibility: ABB Advant OCS / Advant Master DCS
- Communication Function: Deterministic controller-to-subsystem fieldbus link
- Power Supply: Backplane-powered module
- Topology Support: Line or trunk/drop layouts with proper termination and shielding
- Diagnostics: Front-panel LED status indicators (typical for Advant controller boards)
- Mounting: Advant OCS / Master rack cardfile
- Dimensions (approx.): 321.3 × 228.6 × 19.8 mm
- Weight (approx.): 0.46 kg
- Origin: Sweden (per supplier listing)
Product Introduction (No Fluff)
This is an ABB MasterFieldbus controller board used in legacy Advant OCS and Advant Master DCS systems to maintain deterministic fieldbus communication between controllers and distributed subsystems. It serves as a central interface for keeping I/O nodes and supervisory devices synchronized on older ABB DCS architectures.
For plants running installed-base Advant systems, this module is a targeted replacement when MasterFieldbus communication becomes intermittent, diagnostics flag a board fault, or a spare is needed for planned maintenance. Because it is a legacy component, verify rack type, slot configuration, and firmware compatibility before commissioning.
QA & Testing SOP (Dynamic & Transparent)
Fieldbus controller boards fail differently from analog I/O cards. The usual symptoms are lost bus segments, node timeouts, or intermittent communication faults rather than single-channel drift.
- Inbound authenticity check: Verify 57310001-LM labeling, ABB markings, PCB revision, connector condition, and absence of corrosion or rework.
- Physical inspection: Check edge connector pins, card guides, fieldbus connectors, and LED indicators for damage or bent contacts.
- ESD-safe handling: Stored in anti-static bags with humidity control; handled at ESD-safe workstations.
- Power-up and diagnostics: Verify board power-up sequence and LED status on a compatible Advant rack where available.
- Communication sanity check: Where a test environment is available, verify basic board initialization, LED behavior, and absence of persistent fault indications. Full MasterFieldbus segment testing depends on the connected nodes, termination, and engineering station configuration.
If a full OEM Advant rack is not available for functional testing, we disclose it clearly rather than inventing test results.
Installation Pitfalls & Guide (Engineer to Engineer)
❗ Do not confuse DSCS131 with DSCS140 or DSBC172/173. DSCS131 is a MasterFieldbus controller board; DSCS140 is a MasterBus controller card; DSBC172/173 are bus repeaters/extenders. Wrong substitution will not restore the fieldbus segment.
❗ Verify slot configuration before insertion. Advant OCS / Master slots must be configured for the correct controller or communication module type. Dropping in a fieldbus controller board into a slot configured for CPU, memory, or I/O will trigger diagnostics faults.
❗ Check fieldbus termination and shielding. Intermittent MasterFieldbus faults are often caused by missing terminators, poor shield grounding, or damaged drop cables rather than a bad board. Inspect the segment before replacing the controller card.
❗ Mind ESD and backplane pins. Forced insertion can bend edge connector pins. Always align the card guides and seat evenly.
Replacement steps:
- Pre-install: Confirm part number, slot ID, engineering configuration, and ESD precautions.
- Removal: Follow site SOP. Advant OCS / Master systems may support module exchange in certain configurations, but confirm with the engineering station before pulling a live fieldbus controller card.
- Install: Seat the module firmly, verify connector alignment, and secure retaining hardware.
- Power-on test: Check LED status, confirm MasterFieldbus segment recovery, and validate node communication from the engineering station.
Technical FAQ
Is DSCS131 57310001-LM still available?
This is a legacy Advant OCS / Master DCS module. Availability depends on surplus and remaining inventory. Confirm current stock before planning multi-unit replacements.
Can I substitute it with DSCS140 or DSBC172?
No. DSCS140 is a MasterBus controller card, and DSBC172/173 are bus repeaters/extenders. They do not replace a MasterFieldbus controller board.
Does it support hot-swap?
Some Advant OCS / Master configurations support module exchange during operation, but removing a live fieldbus controller board can interrupt the connected segment. Always verify with the engineering station and site SOP first.
What warranty do you offer?
Warranty terms depend on condition: new original, new surplus, or tested used. We provide clear condition labeling and DOA coverage for tested units. Specific warranty length should be confirmed at checkout.
How do I confirm compatibility?
Send the rack type, slot number, existing module label, revision suffix, and a photo of the front plate and connectors. We will verify whether 57310001-LM matches your slot configuration before shipment.
