Key Technical Specifications
- Part Number: DSMB127 57360001-HG
- Manufacturer: ABB
- Product Type: Memory Module
- Connection Type: Plug-In
- Net Depth/Length: 234 mm
- Net Width: 225 mm
- Net Height: 18 mm
- Net Weight: 0.5 kg
- Output Type: DC
- Application: Industrial Automation, DCS, PLC Systems
- Condition: Tested / New Surplus (Verify with supplier)
- Warranty: 12 Months (Supplier Dependent)
Product Introduction
ABB DSMB127 57360001-HG is a memory module designed to expand data storage capacity within ABB control systems. It installs directly into the controller backplane to support additional program logic or historical data buffering in legacy DCS and PLC environments.This board provides a measurable increase in available RAM for older ABB platforms that lack native expansion slots. Field units typically show a green status LED upon successful initialization (if the LED is amber, check the seating immediately). Always cross-reference the silkscreen revision code against your chassis manual, as even minor hardware revs can alter memory mapping.
Installation & Configuration Guide
Preparation (10 min)
- Review the controller’s hardware manual for the DSMB127 57360001-HG slot assignment.
- Power down the entire rack and verify 0V DC at the terminal block with a multimeter.
- Put on an ESD wrist strap and clip it to the grounded chassis rail.
- Locate the specific slot; forcing it into the wrong position will bend backplane pins.
Removal (5–10 min)
- Release the ejector levers on the existing module (if present).
- Pull the board straight out; do not rock it side-to-side.
- Inspect the backplane connector for bent pins or carbon scoring.
- Place the old board in an anti-static bag if it is being kept as a spare.
Installation (10 min)
- Align the DSMB127 57360001-HG guide rails with the chassis slots.
- Slide the board in until it seats fully; you should feel firm mechanical resistance.
- Engage the ejector levers to lock the connector; never use a hammer or excessive force.
- Verify the board is flush with adjacent modules and no gaps exist at the backplane.
Power-On & Test (10 min)
- Apply 24V DC control power and observe the module status LEDs.
- Wait for the controller POST sequence to complete (typically 30–60 seconds).
- Check the HMI or engineering workstation for “Memory Expansion Detected” or equivalent messages.
- Run a quick memory diagnostic test from the controller software to validate addressable space.
Troubleshooting Quick Reference
| Symptom | Probable Cause | Corrective Action |
|---|---|---|
| No LEDs illuminate | Backplane power failure or poor seating | Reseat module; measure 5V/3.3V at backplane test points |
| Amber/Fault LED solid | Firmware mismatch or corrupted image | Verify revision matches controller; reflash if supported |
| Controller fails POST | Incompatible hardware revision | Check silkscreen rev code against chassis manual |
| Intermittent faults | ESD damage or oxidized connector | Clean contacts with contact cleaner; replace if persistent |
| Memory test fails | Defective module or bad slot | Swap to known-good slot; RMA module if fault follows board |
Dimensions, Mounting & Wiring Notes
- Height × Width × Depth: 18 mm × 225 mm × 234 mm
- Mounting Method: Backplane Plug-In with mechanical ejector locks
- Terminal Notes: No field wiring required; all connections are via the backplane connector
- Clearance: Maintain minimum 30 mm spacing between modules for airflow
- ESD Sensitivity: Handle only by edges; avoid touching gold fingers or ICs
FAQ
Will this DSMB127 57360001-HG work with my AC800M controller?
No. This module belongs to the legacy DSMB/Advant OCS family and is not compatible with AC800M or AC800F platforms. Always verify the exact controller family before purchasing.I pulled the old board and the silkscreen says /2 at the end. Does that matter?
Yes. The /2 suffix often indicates a hardware revision or firmware mask option. Check your controller’s release notes; mixing revisions can cause memory mapping errors or POST failures.How do I know if the module is actually tested and not just pulled from a scrap rack?
Reputable suppliers perform live functional testing on a dedicated test rack, including power-on self-test, communication handshake, and full-range I/O or memory simulation. Ask for the test report or QC signature on the packaging.What’s the return policy if it doesn’t boot in my system?
Most industrial automation suppliers offer a 12-month warranty against manufacturing defects, but compatibility issues are typically the buyer’s responsibility. Confirm the return window and restocking fee before ordering, especially for legacy parts.Is there a risk of ESD damage during shipping?
Yes. Always inspect the anti-static seal upon arrival. If the bag is torn or the ESD label is missing, test the module immediately upon receipt and document any faults with photos.Can I use this in a high-vibration environment like a paper mill?
The DSMB127 57360001-HG is designed for standard industrial environments. If vibration exceeds 10–55 Hz at 0.5 mm peak-to-peak, consider additional chassis damping or conformal-coated variants if available.Why does the price vary so much between suppliers?
Pricing reflects condition (new surplus vs. refurbished), warranty length, and whether the supplier performs live functional testing. The lowest price often means untested pulls with no support. Budget accordingly for mission-critical systems.
