Overview
The ABB 3BSE088382R1, also cataloged as the PM863K02 Redundant Processor Unit, operates as a dedicated hardware component for redundant controller execution and application processing within the AC 800M Control Network.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM863K02 |
| Brand | ABB |
| Article Number | 3BSE088382R1 |
| Product Type | Redundant Processor Unit |
| Controller Platform | AC 800M |
| Processor Type | MPC866 |
| Redundancy | Yes |
| High Integrity | Yes |
| Clock Frequency | 96 MHz |
| Performance | 0.17 ms per 1000 boolean operations |
| Memory | 32 MB |
| RAM Available for Application | 22.184 MB |
| Firmware Storage | 18 MB Flash PROM |
| Flash Memory for Application Storage | No |
| Power Supply | 24 VDC (19.2-30 VDC) |
| Power Consumption | 210 mA typ / 360 mA max at +24 VDC |
| Power Dissipation | 5.1 W typ / 8.6 W max |
| Weight | 2700 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 |
| Ethernet Interface | 2 channels, IEEE 802.3, 10 Mbit/s, RJ-45 |
| RS-232C Interface | 2 ports |
| ModuleBus Capacity | Max 96 I/O modules with single PM863, 84 I/O modules in redundant configuration |
| CEX Bus Communication Modules | Max 12 |
| Built-in Backup Battery | Lithium 3.6 V |
| Protection Class | IP20 according to EN 60529 |
Firmware Flash Compatibility and Industrial Control Network Execution
The PM863K02 uses an MPC866 processor architecture with dedicated firmware storage through an 18 MB Flash PROM. The controller supports AC 800M application execution with up to 32 applications, 64 programs per application, and 128 diagrams per application. Communication with the Control Network is based on MMS and IAC protocols through Ethernet interfaces.
The redundant configuration supports controller synchronization with a maximum switch-over time of 10 ms. Clock synchronization between AC 800M controllers is maintained at 1 ms through the CNCP protocol.
The controller supports ModuleBus expansion with optical I/O cluster connection capability and provides configurable scan timing according to the connected I/O module quantity.
Frequently Asked Questions
Q: What is the redundancy behavior of the ABB PM863K02 processor unit?
A: The PM863K02 supports redundant processor operation with a maximum controller switch-over time of 10 ms during redundancy transition.
Q: What power requirements must be considered for PM863K02 installation?
A: The unit requires a 24 VDC power supply within the range of 19.2-30 VDC. Typical current consumption is 210 mA with a maximum of 360 mA at +24 VDC.
Q: What communication interfaces are integrated into the PM863K02?
A: The processor includes two Ethernet channels using IEEE 802.3 interfaces and two RS-232C interfaces for communication and service functions.
Field Installation Guidelines
- Install the PM863K02 on the designated AC 800M controller base assembly with correct mechanical alignment.
- Verify that the redundant processor configuration uses matching processor units and approved controller hardware combinations.
- Connect the 24 VDC supply using industrial wiring practices with appropriate protective grounding.
- Maintain separation between communication cables and high-current power conductors to reduce electromagnetic interference.
- Ensure Ethernet and RS-232C cables are routed according to site EMC requirements.
- Confirm ModuleBus connections are correctly seated before controller commissioning.
- Verify environmental conditions remain within the specified operating temperature, humidity, and pollution degree limits.
- Use the approved grounding and shielding method for industrial control cabinets to maintain signal integrity.
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