Configured for high-speed logic execution in AC 800M automation platforms, the ABB 3BSE018161R1 (PM864AK01 Controller Processor Unit) provides direct physical and electrical execution of multi-layered control applications across distributed processing architectures.

Model Suffix & Processing Matrix

• PM864AK01: Primary processor model identifier for AC 800M series.

• 3BSE018161R1: Global article number for hardware revision and release.

• Application Logic: Supports 32 simultaneous applications per controller unit.

Hardware Specifications

PLC & DCS Control Logic

The PM864AK01 processor manages backplane bus communication velocity to ensure deterministic I/O polling across the ModuleBus and CEX-Bus. Firmware flash compatibility is maintained through the primary control network interfaces, supporting synchronized updates across redundant controller pairs. Deterministic networks (Profinet/EtherNet/IP integration) are handled through the internal Ethernet channels, while local I/O density scaling allows for expansion up to 96 I/O modules in simplex mode. The unit utilizes internal clock synchronization to maintain sub-millisecond execution times for time-critical logic loops.

Ordering Information

• 1 x 3BSE018161R1 PM864AK01 Processor Unit

• 1 x Lithium backup battery (pre-installed)

• 1 x Installation instruction documentation

Field Installation Guidelines

• Mounting: Install the module on a dedicated AC 800M mounting base, ensuring secure engagement with the backplane connectors.

• Grounding: Ensure the module housing is bonded to the cabinet functional earth to prevent electrostatic discharge during operation.

• Wiring: Route communication cabling through dedicated conduits to minimize interference with the RS-232 and isolated COM ports.

• Battery Maintenance: Monitor the 3.6 V lithium backup battery level; replace only when the unit is powered to prevent loss of non-volatile configuration data.

Frequently Asked Questions

• Does the module support hot-swapping? No, the PM864AK01 requires a system power-down or specific rack-level protocols for replacement in redundant pairs.

• What is the maximum I/O capacity? The processor supports 96 I/O modules in simplex configuration or 84 modules in redundant configurations.

• How is data retained during power cycles? An onboard 3.6 V lithium battery provides non-volatile data retention for user applications and system logs.

• Can I use the CEX-Bus for communication modules? Yes, the unit supports up to 12 CEX-Bus communication modules for network expansion.

• What is the boolean execution speed? The processor achieves a scan rate of 0.15 ms per 1000 boolean instructions.

• Is the firmware upgradeable? Yes, firmware is stored in 2 MB Flash PROM and can be upgraded via the integrated Ethernet channels.

• How many Ethernet channels are available? The module features two integrated IEEE 802.3 Ethernet channels supporting 10 Mbit/s communication.

• What is the memory allocation for users? Out of 32 MB total RAM, 23.5 MB is reserved for user-defined application logic and data.