Description
Product Core Brief
- Model: PM865
- Order code: 3BSE030193R1
- Brand: ABB
- Series: ABB AC 800M / System 800xA control system family
- Core Function: High integrity processor module for AC 800M controllers, designed for safety-critical and process control applications. Executes deterministic control programs, manages S800 I/O via ModuleBus, and provides Ethernet connectivity for engineering, operator stations, and plant networks.
- Product Type: High integrity processor module / CPU controller
- Key Specs: 64 MB RAM | 133 MHz processor | 2× 10/100 Mbit/s Ethernet ports | 2× RS-232C serial ports | CEX-bus expansion | supports CPU redundancy | SIL2/SIL3 capable with SM81x modules | connects to S800 I/O via TP830 baseplate
- Condition: New Original / New Surplus
Key Technical Specifications
- Order code: 3BSE030193R1
- Product designation: PM865 high integrity processor unit
- System family: ABB AC 800M / System 800xA
- Processor: High-performance RISC processor, 133 MHz clock frequency
- Memory: 64 MB RAM
- Power supply: 24 VDC nominal (19.2–30 VDC), supplied via AC 800M base unit
- Communication interfaces: 2× RJ45 Ethernet ports (CN1, CN2) for control network; 2× RS-232C serial ports (COM3 with modem control signals, COM4 isolated for configuration tool)
- Fieldbus expansion: Supports PROFIBUS DP, FOUNDATION Fieldbus HSE, Modbus TCP, MasterBus 300, and other protocols via CEX-bus communication interface modules (CI8xx series), up to 12 modules
- I/O architecture: No onboard I/O; connects to S800 I/O through ModuleBus on TP830 baseplate; supports high integrity S800 I/O configurations
- Redundancy: Supports CPU redundancy configurations (hot-standby with automatic failover in under 10 ms), including redundant CPU, CEX-bus, communication interfaces, and S800 I/O
- Safety integrity: Designed for high integrity applications; supports SIL2/SIL3 certification with SM81x safety monitor modules and high integrity software; features enhanced hardware fault tolerance including dual overvoltage protection, additional watchdog timers, and strengthened oscillator monitoring
- Storage: CompactFlash card slot for application and firmware storage (note: CF card cannot be used in high integrity mode)
- Operating temperature: 0 to +55 °C (typical)
- Mounting: DIN-rail mounting via TP830 baseplate
- Typical applications: Process safety systems, oil and gas, power generation, chemical processing, metallurgy, SIS (Safety Instrumented Systems), and distributed industrial automation requiring high availability
- Note: Exact firmware version, communication module configuration, and system compatibility should be confirmed from the ABB product documentation or the unit nameplate
Product Introduction
The ABB PM865 3BSE030193R1 is a high integrity processor module designed for the ABB AC 800M control system architecture. It serves as the core controller in safety-critical and distributed automation applications, executing deterministic control programs, coordinating I/O data exchange through the TP830 baseplate and S800 I/O modules, and providing Ethernet-based connectivity for plant networks and engineering access.
The PM865 features a high-performance RISC processor running at 133 MHz with 64 MB of RAM. The module includes two 10/100 Mbit/s Ethernet ports for control network communication and two RS-232C serial ports, with COM4 isolated for configuration tool connection.
What distinguishes the PM865 from other AC 800M processors is its high integrity design. It adds enhanced hardware fault tolerance including dual internal overvoltage protection, additional watchdog timers driven by SM811 safety monitor data, strengthened oscillator monitoring, and enhanced system diagnostics with online self-test capabilities. When paired with SM81x safety monitor modules and high integrity software, the PM865 supports SIL
2 and SIL3 certification per IEC 61508, making it suitable for Safety Instrumented Systems (SIS) and other safety-critical process applications.
The module supports CPU redundancy configurations, allowing two PM865 units to operate in a hot-standby arrangement for higher system availability. Redundancy extends to CEX-bus communication modules and S800 I/O, providing comprehensive fault tolerance with automatic failover in under 10 ms.
This module is not a standalone PLC and must be installed as part of a compatible AC 800M / System 800xA system with a TP830 baseplate. Before replacement, always confirm the existing system configuration, firmware version, communication interface modules, and connected S800 I/O arrangement.
QA & Testing SOP
- Order code verification: Confirm PM865 and 3BSE030193R1 on the nameplate.
- Visual inspection: Check the module housing, Ethernet ports, serial ports, CompactFlash slot, and mounting hardware for damage or corrosion.
- Power-up test: Install the module into the correct TP830 baseplate position, apply 24 VDC supply, and verify normal start-up without fault indicators.
- Communication check: Verify Ethernet connectivity on both ports and serial port communication via COM3/COM4.
- System test: Confirm program download/upload capability, S800 I/O communication, redundancy status if applicable, and stable controller operation within the AC 800M / System 800xA environment.
Installation Pitfalls & Guide
❗ Confirm system compatibility. PM865 is designed for the ABB AC 800M / System 800xA architecture with TP830 baseplate. It cannot be directly substituted into AC 800F / Freelance or other ABB controller families.
❗ Verify high integrity configuration. If the system is configured for SIL applications, confirm that SM81x safety monitor modules are present and the correct high integrity firmware is installed. Note that CompactFlash cards cannot be used in high integrity mode.
❗ Record existing configuration. Before removal, save the controller program, firmware version, communication module configuration, and baseplate slot assignment.
❗ Check redundancy configuration. If the system uses CPU redundancy, confirm that both primary and secondary units are properly configured and synchronized before replacing either module.
❗ Follow proper grounding practices. Ensure correct grounding and shielding to minimize electromagnetic interference in industrial environments.
Replacement steps:
- Pre-install: Back up the existing controller program, note the firmware version, communication configuration, and slot position.
- Removal: Follow safe shutdown procedures, disconnect power if required, then remove the processor module.
- Install: Insert the PM865 into the correct TP830 baseplate position, verify all connectors, and confirm proper seating.
- Commissioning: Power up the system, confirm normal startup, verify Ethernet and fieldbus communication, check S800 I/O status, validate redundancy if applicable, and confirm process control operation before returning to production.
Technical FAQ
Is 3BSE030193R1 the correct order code for PM865? Yes, 3BSE030193R1 is listed as an order code for the ABB PM865 high integrity processor module. Always confirm the full designation on the existing nameplate.
What makes PM865 different from PM864? The PM865 is a high integrity variant with enhanced hardware fault tolerance, including dual overvoltage protection, additional watchdog timers, strengthened oscillator monitoring, and support for SIL2/SIL3 certification when paired with SM81x modules and high integrity software.
What system is PM865 used in? It is designed for the ABB AC 800M control system and integrates with System 800xA environments, using S800 I/O and CEX-bus communication interface modules.
Does PM865 support redundancy? Yes. PM865 supports CPU redundancy configurations for higher availability in critical process applications, with automatic failover in under 10 ms.
Can PM865 be used for safety applications? Yes. PM865 is specifically designed for high integrity applications and supports SIL2/SIL3 certification per IEC 61508 when configured with SM81x safety monitor modules and high integrity software.
Does PM865 have onboard I/O? No. PM865 has no onboard discrete or analog I/O by design. Field I/O is handled through S800 I/O modules connected via the TP830 baseplate ModuleBus.
Do you offer price flexibility? Yes. Pricing depends on condition, firmware visibility, quantity, and urgency. New original stock and tested surplus units are quoted separately.
What warranty is included? Typical coverage is 12 months from delivery for functional defects, excluding incorrect installation, firmware mismatch, communication configuration errors, or damage from improper handling. Final terms are confirmed on the quotation.
