Overview
Configured for application program execution and controller communication in the ABB AC 800M Control Network, the ABB PM862K01 (PM862K01 Processor Unit) provides direct physical and electrical execution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM862K01 (3BSE076940R1) |
| Brand | ABB |
| Product Type | AC 800M Processor Unit |
| Processor Type | MPC866 |
| Origin | Sweden |
| Weight | 1200 g (including base) |
| Dimensions | 119 mm W x 186 mm H x 135 mm D |
| Operating Temp | 0 to +55 deg C |
| Storage Temp | -40 to +70 deg C |
| Power Consumption | 5.1 W typical, 8.6 W maximum |
| Power Supply | 24 VDC (19.2-30 VDC) |
| Clock Frequency | 67 MHz |
| Performance | 0.18 ms per 1000 boolean operations |
| Memory | 32 MB |
| RAM Available for Application | 23.521 MB |
| Flash Memory for Storage | Yes |
| Firmware Storage | 4 MB Flash PROM |
| Ethernet Channels | 2 |
| Ethernet Interface | IEEE 802.3 Ethernet, 10 Mbit/s, RJ-45 female |
| RS-232C Interfaces | 2 |
| Communication Protocol | MMS and IAC |
| CEX Bus Communication Modules | Maximum 12 modules |
| CEX Bus Supply Current | Maximum 2.4 A |
| ModuleBus I/O Capacity | Maximum 96 I/O modules with single PM862 configuration |
| ModuleBus Scan Rate | 0-100 ms depending on I/O module quantity |
| Applications per Controller | Maximum 32 |
| Programs per Application | Maximum 64 |
| Diagrams per Application | Maximum 128 |
| Tasks per Controller | Maximum 32 |
| Cycle Time | Down to 1 ms |
| Backup Battery | Lithium 3.6 V |
| Redundant Power Supply Status Input | Yes |
| Protection Class | IP20 according to EN 60529 |
| Isolation Voltage | 500 VAC rated |
ABB AC 800M Controller Bus and Firmware Integration
The PM862K01 processor unit operates as an ABB AC 800M controller component with integrated Ethernet communication channels and ModuleBus connectivity. The processor provides execution of controller applications, communication management through MMS and IAC protocols, and firmware storage through onboard Flash PROM.
The controller supports firmware flash compatibility for AC 800M engineering environments and provides configurable I/O density scaling through ModuleBus expansion. The processor architecture supports up to 96 I/O modules in a single processor configuration, with ModuleBus scan timing determined by connected I/O hardware quantity.
The controller includes two Ethernet interfaces for Control Network communication and supports synchronization between AC 800M controllers through CNCP protocol with approximately 1 ms clock synchronization capability.
Frequently Asked Questions
Q: Does the PM862K01 support redundant processor operation?
A: The PM862K01 article number 3BSE076940R1 is specified as a non-redundant processor unit. Redundant controller configurations require processor variants specified for redundancy support.
Q: What is the maximum current available for CEX bus connected modules?
A: The PM862K01 provides a maximum CEX bus supply current of 2.4 A for connected communication modules.
Q: What communication interfaces are integrated into the processor unit?
A: The processor includes two Ethernet channels using IEEE 802.3 Ethernet with RJ-45 connectors and two RS-232C interfaces, including a general interface and a service tool interface.
Field Installation Guidelines
- Install the PM862K01 on the designated AC 800M controller baseplate and ensure correct mechanical locking before applying power.
- Verify the 24 VDC supply polarity and voltage range before connection to the processor power terminals.
- Maintain proper separation between Ethernet communication cables and high-voltage power wiring to reduce electrical interference.
- Connect protective grounding according to the AC 800M installation requirements and ensure cabinet grounding continuity.
- Confirm ModuleBus and CEX bus connections are fully seated before controller startup.
- Use shielded communication cables where required by the installation environment and terminate cable shields according to site EMC practices.
- Check environmental conditions before installation, including temperature, humidity, pollution degree, and enclosure protection requirements.
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