Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | PM864K01 |
| Product Family | ABB AC 800M |
| Product Type | CPU processor module |
| Processor Speed | 96 MHz |
| RAM | 32 MB |
| Boolean Performance | ~0.15 ms / 1,000 Boolean operations |
| Redundancy | CPU, CEX-bus, communication, S800 I/O supported |
| Ethernet Ports | 2 × RJ45 on TP830 baseplate (CN1, CN2) |
| Serial Ports | COM3 RS-232C; COM4 isolated configuration port |
| Storage | CompactFlash card slot |
| Local I/O Bus | ModuleBus for S800 I/O |
| Supply Voltage | 24 V DC (19.2–30 V DC), verify nameplate |
| Typical Current | ~290 mA, CPU only |
| Operating Temperature | +5 to +55 °C typical; verify installed revision |
| Protection Class | IP20 |
| Software | Control Builder for AC 800M / 800xA |
| Typical Reference | PM864 / PM864A family |
| Condition | New Original / New Surplus / Refurbished (Tested) |
| Warranty | 12 months |
Product Introduction
ABB PM864K01 is an AC 800M CPU processor module used in process control, power, and industrial automation systems. It runs control applications, manages local and remote I/O, and supports redundant operation when paired with a compatible baseplate, communication modules, and Control Builder configuration.The PM864 family is positioned as a higher-performance AC 800M CPU, with a 96 MHz processor and 32 MB RAM. It delivers approximately 0.15 ms per 1,000 Boolean operations and supports redundancy for CPU, CEX-bus, communication links, and S800 I/O. Because ABB has released several PM864 variants, the exact order code — PM864K01, PM864AK01, PM864AK02, or another revision — must be matched to the installed module before replacement.
Installation & Configuration Guide
Preparation — 10 min
- Record controller tag, slot position, firmware version, and redundancy mode.
- Photograph the nameplate, Ethernet addresses, CompactFlash card, and LED status.
- Confirm the replacement matches the installed PM864 variant and application.
- Back up the Control Builder project and controller configuration.
- Verify 24 V DC supply is within 19.2–30 V DC before installation.
Removal — 5–10 min
- Place affected control loops in manual or safe state.
- Follow site lockout/tagout and change-management procedures.
- Label Ethernet, serial, and redundancy cables.
- Remove the module from the TP830 baseplate using the slide-and-lock mechanism.
- Do not remove CompactFlash, batteries, or communication modules unless required.
Installation — 10 min
- Inspect the baseplate connector for bent pins or contamination.
- Seat the PM864K01 fully before engaging the locking mechanism.
- Reconnect Ethernet cables to CN1/CN2 in the correct order.
- Reconnect redundancy links if the system runs in redundant mode.
- Verify the CompactFlash card is seated if the application requires it.
Power-On & Test — 10 min
- Measure 24 V DC at the power connector before energizing.
- Power up and check RUN, ERR, and Ethernet LEDs.
- Confirm the controller appears online in Control Builder / 800xA.
- Verify redundancy status if the system is configured as redundant.
- Test critical I/O points and confirm no forced signals remain active.
Troubleshooting Quick Reference
| Symptom | Most Likely Cause | First Check |
|---|---|---|
| No LEDs after power-up | Missing or low 24 V DC | Measure supply at baseplate connector |
| ERR LED active | Application, firmware, or hardware fault | Check Control Builder diagnostics |
| Controller offline | Ethernet address or cable issue | Verify CN1/CN2 link LEDs and IP settings |
| Redundancy fail | Sync link, firmware, or configuration mismatch | Compare firmware and redundancy status |
| I/O not updating | ModuleBus or S800 station fault | Check S800 power, bus termination, and diagnostics |
| Application will not load | CompactFlash or version mismatch | Verify CF card content and project compatibility |
Dimensions, Mounting & Wiring Notes
- Dimensions: Not confirmed from verified OEM data for the exact PM864K01 order code. Use the original module as a mechanical reference.
- Mounting: DIN-rail mounted via TP830 baseplate with slide-and-lock mechanism.
- Terminal Notes: Ethernet ports CN1/CN2 and serial ports COM3/COM4 are RJ45 type. COM3 is RS-232C; COM4 is isolated for configuration.
- Wiring Notes: Keep Ethernet and redundancy cables separated from power cables. Confirm 24 V DC polarity and ground before power-up.
FAQ
Is PM864K01 the same as PM864AK01?
Not necessarily. Both belong to the AC 800M PM864 family, but suffixes such as A, K01, and K02 can indicate hardware revision, redundancy capability, or firmware differences. Match the full order code before replacement.Can PM864K01 run in redundant mode?
The PM864 family supports CPU redundancy, but only when the installed variant, baseplate, communication modules, and application are configured for it. Verify redundancy status in Control Builder.What software is required?
Control Builder for AC 800M or ABB 800xA system software is required. The exact version depends on the installed firmware and project.I replaced the CPU and the system will not come online. What should I check first?
Check 24 V DC supply, Ethernet cabling, CompactFlash card presence, firmware compatibility, and redundancy configuration. A mismatched firmware version is a common cause.Does this module include a CompactFlash card?
Not always. Some units ship with a CF card; others do not. Confirm from the nameplate, photos, and packing list.What warranty do you offer?
12 months, unless otherwise stated. Condition — New Original, New Surplus, or Refurbished (Tested) — is confirmed per unit.Do you test these before shipping?
Function is verified under test conditions when tested stock is supplied. That includes visual inspection, supply check, connector inspection, communication check, and basic diagnostics. Full plant-level testing is not performed unless specifically arranged.
