Description
Key Technical Specifications
- Power Supply Voltage: 24 V DC (19.2–30 V range)
- Power Consumption: Typ 210 mA / max 360 mA at 24 V (5.1 W typ, 8.6 W max)
- Processor Type: MPC866 microprocessor, 133 MHz clock
- Memory: 64 MB RAM total, ~46.559 MB available for applications, battery-backed
- Communication Interfaces: 2 × RJ45 Ethernet (10 Mbit/s, CN1/CN2 for redundant Control Network)
- Redundancy Support: Yes, hot standby with paired units (max 10 ms switchover)
- High Integrity Features: TÜV-certified SIL2/SIL3 (requires SM812 monitor and Safety Manual config)
- Operating Temperature: 0 to +55 °C
- Storage Temperature: –40 to +70 °C
- Mounting: DIN-rail baseplate (TP830)
- Protection Class: IP20
- Weight: Approx. 1.2 kg (including baseplate)
- Dimensions: Width 119 mm, Height 186 mm, Depth 135 mm
- PM867K01 3BSE076356R1
4. Product Introduction
The ABB PM867K01 (3BSE076356R1) is a high-integrity processor unit in the AC 800M series for ABB System 800xA, engineered for safety-critical applications requiring SIL2 or SIL3 certification when paired with the SM812 monitor. It executes control logic, runs diagnostics, and manages I/O in sectors like oil & gas, chemicals, and power generation where certified functional safety prevents hazardous failures.
It delivers enhanced performance over earlier models with 133 MHz processing, redundant Ethernet ports, and extensive self-testing for reliable operation in high-availability loops. Facilities use it in integrated safety and process control setups, avoiding separate safety PLCs while maintaining TÜV compliance and minimizing migration costs on existing 800xA infrastructure.
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No LEDs / failure to boot | Power supply or fuse issue | ❌ Low | Measure 24 V DC (19.2–30 V) at baseplate terminals | Confirm PSU output and fuses first |
| Ethernet no link / comms timeout | Cable, IP, or network mismatch | ✅ High | Check Ethernet LEDs; ping CN1/CN2 from station | Verify IP config, cables, switch ports |
| Safety functions not active | SM812 monitor fault or config | ✅ High | Read SM812 status LEDs; check diagnostics | Confirm SM812 pairing; review Safety Manual |
| Diagnostic errors / watchdog | Internal fault or execution overload | ✅ High | Pull logs in Control Builder | Cycle if safe; replace if faults persist |
| Redundancy failover fails | RCU link cable or unit mismatch | ✅ High | Test manual switchover; check sync LEDs | Match firmware/rev; inspect RCU cables |
| Memory/config loss on outage | Battery depleted | ✅ Medium | Check battery status LED/diagnostics | Replace lithium battery; backup via CF |
Most issues trace to power, network, or SM812 pairing—the PM867K01 holds strong unless ESD or spikes occur. If boot sequence, Ethernet, and SM812 checks clear but safety/execution fails, swap the unit. Send LED photos, Control Builder logs, and wiring images to support.
6. Frequently Asked Questions (FAQ)
Is the PM867K01 hot-swappable in redundant HI configurations? Yes, in paired setups—one carries the load during swap. For single units, power down the controller section first. Always follow site safety procedures to isolate loops.
What enables SIL3 certification on this processor? TÜV-certified for SIL2/SIL3 when configured with SM812 monitor per the Safety Manual. Requires specific setup, voting logic, and compliance checks—local teams must verify against standards.
Does swapping preserve the safety application and config? Yes—code/config loads from CompactFlash or battery-backed RAM, with auto-sync in redundancy. HI pairs pull from primary on standby. Standalone needs CF card or Control Builder reload.
Why surplus/new original over ABB factory new? This is genuine ABB legacy stock—factory excess or spares, never field-installed beyond testing. We verify boot, Ethernet ping, diagnostics, redundancy sim, and thermal on AC 800M HI setups. No refurb; pure OEM at lower cost.
Can it run in non-HI mode or pair with other CPUs? Primarily for High Integrity (with SM812 for certification). Possible in standard mode but loses SIL rating. Firmware must match for redundancy; not seamless swap with non-HI like PM866 without checks.
How to isolate fault to the PM867K01 vs. SM812, network, or power? Swap with a verified spare. If issue tracks the module, it’s faulty. If not, inspect power, Ethernet switches/cables, SM812 status, or re-download config. Always wear ESD strap—these high-spec boards are static-sensitive.
Stock, lead time, and warranty? Limited availability on this HI AC 800M variant—ships same/next day from current inventory. 1-year warranty on functional performance from receipt. Test reports and photos provided on request for safety installs.





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