ABB PM864 AC 800M Processor Module
The PM864 (part number 3BSE018161R1) is a high-performance 32-bit processor unit for the ABB AC 800M control platform. Driven by a 96 MHz MPC862 processor with 32 MB SDRAM and 2 MB Flash memory, it serves as the central controller executing control applications, managing I/O data processing, and handling communications across field networks and supervisory systems.
Bus Interfaces and Memory Backup
The unit features two 10Base-T Ethernet ports and two RS-232C serial interfaces, along with a CEX-Bus connection for communication expansion. Field I/O integration is supported directly via the electrical ModuleBus, which connects up to 12 S800 I/O units. Non-volatile data preservation is maintained via battery backup, with support for CompactFlash external media.
Operational Characteristics and Hardware Configuration
Operating on a nominal 24 VDC supply (19.2 to 30 VDC allowable range), the module exhibits a typical power dissipation of 6.9 W. Designed for enclosure mounting with an IP20 protection rating, it supports controller redundancy for high-availability control architectures across extended ambient operating temperatures.
| Parameter | Specification |
|---|---|
| Model | PM864 |
| Brand | ABB |
| ABB Part Number | 3BSE018161R1 |
| Series | AC 800M |
| Product Type | PLC / DCS Processor Unit |
| CPU | MPC862 (96 MHz, 32-bit) |
| SDRAM | 32 MB |
| Flash Memory | 2 MB |
| Nominal Supply Voltage | 24 VDC |
| Supply Voltage Range | 19.2 to 30 VDC |
| Power Dissipation | 6.9 W typical |
| Ethernet Ports | 2 x RJ45 (10Base-T, IEEE 802.3) |
| Serial Ports | 2 x RS-232C |
| Expansion Interfaces | CEX-Bus, ModuleBus (up to 12 S800 I/O units) |
| Redundancy | Supported |
| Protection Rating | IP20 |
| Operating Temperature | -25 deg C to +70 deg C |
| Dimensions (W x H x D) | 119 mm x 186 mm x 135 mm |
| Weight | 1.2 kg |
Frequently Asked Questions
Q: What power supply range is required for the PM864 processor unit? A: The module accepts a nominal 24 VDC power input with an allowable operating range of 19.2 to 30 VDC.
Q: How many local S800 I/O units can be connected directly via ModuleBus? A: The electrical ModuleBus supports up to 12 direct-connected S800 I/O units.
Q: What memory backup options are available for data retention during power loss? A: Data retention is supported via an internal or external memory backup battery and CompactFlash backup media.
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| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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| A: All our new and original products come with a standard one-year warranty. |
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