ABB PM866A AC 800M CPU Processor Module Technical Datasheet
Manufacturer: ABB
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Part Number: PM866A 3BSE076359R1
Condition：New with Original Package
Product Type: CPU Processors
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB PM866A CPU Processor Module
The ABB PM866A, also cataloged as the PM866A CPU Module, operates as a dedicated hardware component for executing complex control applications and logic sequences within System 800xA network platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM866A (3BSE076359R1) |
| Brand | ABB |
| Origin | Refer to Nameplate |
| Weight | 0.6 - 0.8 kg |
| Dimensions | 155 x 125 x 85 mm |
| Operating Temp | -20 deg C to +60 deg C |
| Power Consumption | 12 - 15 W |
| Power Supply | 24 VDC (+/- 10%) |
| Memory | 128 MB RAM, 128 MB Flash |
| Communication | 2x Ethernet, RS-232, PROFIBUS, Modbus TCP |
Industrial Control and Firmware Compatibility
The PM866A module leverages a high-performance RISC architecture to facilitate rapid execution cycles required for high-density I/O configurations. To maintain system-wide synchronization, firmware flash compatibility must be verified against the existing AC 800M controller cluster. The module provides two Ethernet ports (CN1, CN2) for control network traffic and two serial ports (COM3, COM4), with COM4 providing galvanic isolation for local configuration tool connectivity. Deterministic operation is enforced across the CEX-Bus, and the module supports redundancy for the CPU, communication interfaces, and S800 I/O subsystems to minimize process impact during component failure.
Frequently Asked Questions
Q: Does the PM866A require a specific base plate for hardware identity?
A: Yes, the PM866A must be mounted on a TP830 base plate. The base plate carries a unique Ethernet address label, which provides the CPU with its hardware identity on the network.
Q: How is the INIT push button utilized during startup?
A: The INIT push button is used to reset the controller to a known state or to clear the current application load from the RAM. It should be used during commissioning or fault recovery procedures per the technical documentation.
Field Installation Guidelines
- Mounting: Utilize the slide and lock mechanism on the TP830 base plate for DIN-rail attachment. Ensure the module is seated fully to establish proper electrical contact with the CEX-Bus and ModuleBus backplane connectors.
- Addressing: Confirm that the Ethernet address label on the base plate matches the network configuration settings programmed in the Control Builder software.
- Grounding: Verify that the cabinet rail is connected to a low-impedance earth bus. Shielded twisted-pair cables should be used for all Ethernet and RS-232 connections to mitigate electrical noise.
- Maintenance: Periodically check the status of the CompactFlash interface and ensure that the memory backup battery is replaced according to the specified maintenance intervals to prevent data loss during power cycles.