Product Overview
PM866AK01 from ABB is a high-performance AC 800M controller. It delivers reliable control for demanding industrial automation. The CPU board integrates a 133 MHz MPC866 processor and 64 MB RAM. It features dual Ethernet ports and two serial interfaces for flexible connectivity. This controller supports CPU redundancy to maximize system availability. Its modular design allows step-by-step expansion. The robust hardware ensures stable operation in harsh environments. This unit carries ISA Secure certification for enhanced cybersecurity.
Key Features & Benefits
- ISA Secure certified – ensures robust cybersecurity protection.
- Redundancy ready – supports CPU and CEX-Bus redundancy for high availability.
- Dual Ethernet ports – built-in for control network communication.
- Reliable diagnostics – simplifies fault finding and reduces downtime.
- Modular expansion – allows easy system growth via CEX-Bus.
- DIN rail mount – slide & lock mechanism for quick attachment.
- Full EMC certification – ensures performance in electrically noisy sites.
- IP20 protection – no additional enclosure required in most cases.
Technical Specifications
| Brand | ABB |
| Model | PM866AK01 |
| Article Number | 3BSE076939R1 |
| Processor Type | MPC866, 133 MHz |
| Performance | 0.09 ms per 1000 boolean operations |
| Memory | 64 MB RAM (51.389 MB available for app) |
| Flash Storage | 4 MB for firmware, plus storage |
| Power Supply | 24 V DC (19.2-30 V DC), 210/360 mA typ/max |
| Power Dissipation | 5.1 W (8.6 W max) |
| Ethernet Interfaces | 2 x RJ45 (10 Mbit/s, IEEE 802.3) |
| Serial Ports | 2 x RS-232C (COM3, COM4) |
| Real-Time Clock | Stability: 100 ppm (approx. 1 h/year) |
| Redundancy Switchover | Max 10 ms |
| CEX-Bus Modules | Up to 12 communication modules |
| I/O Capacity (Modulebus) | Max 96 (single) or 84 (redundant) I/O modules |
| Operating Temperature | +5 to +55 °C (+41 to +131 °F) |
| Storage Temperature | -40 to +70 °C (-40 to +158 °F) |
| Relative Humidity | 5 to 95 % (non-condensing) |
| Protection Class | IP20 (IEC 60529) |
| Altitude | 2000 m max (IEC/EN 61131-2) |
| EMC | EN 61000-6-4, EN 61000-6-2 |
| Electrical Safety | EN 50178, IEC 61131-2, UL 61010-1 |
| Hazardous Location | UL 60079-15, cULus Class 1, Zone 2 |
| Certifications | ISA Secure, CE, RoHS, WEEE, Marine (DNV-GL) |
| Dimensions (W x H x D) | 119 x 186 x 135 mm (4.7 x 7.3 x 5.3 in) |
| Weight | 1200 g (2.6 lbs) |
Environmental & Compliance
- Corrosion protection: G3 compliant to ISA 71.04.
- Vibration: 0.0375 mm (10-50 Hz), 0.5 g (50-150 Hz).
- Pollution degree: Degree 2 per IEC/EN 61131-2.
- Rated isolation voltage: 500 V a.c.
- Dielectric test: 50 V.
- Emissions & immunity: EN 61000-6-4 & EN 61000-6-2.
- Marine certificates: DNV-GL (ABS, BV, LR).
Installation & Mounting
The controller uses a simple DIN rail slide & lock mechanism. Attach or detach quickly without tools. The base plate (TP830) has a unique Ethernet address label. This label provides a hardware identity. Use this address for network configuration. Mount the unit in an IP20 environment. Ensure adequate ventilation around the device. Observe the specified operating temperature range.
Debugging & Maintenance
Diagnostics are straightforward with LED indicators on the CPU board. The INIT push button allows a hardware reset. Use the serial port (COM4) to connect a configuration tool. Monitor system health via the control network. The real-time clock maintains accurate timestamps. Modular design eases replacement of faulty parts. Flash memory stores firmware for simple upgrades.
Compatibility & Interoperability
This controller works with ABB 800xA Control Builder. It supports Ethernet, PROFIBUS DP, and other standard protocols. The CEX-Bus accepts up to 12 communication modules. It connects to S800 I/O systems via Modulebus. The unit is compatible with redundant CPU configurations. It uses MMS and IAC protocols for control network communication. Use a 100 Mbit/s switched Ethernet backbone for best performance.
Typical Applications
- Process automation in oil & gas industries
- Power generation and distribution control
- Water and wastewater treatment plants
- Manufacturing and production lines
- Marine and offshore control systems
- Critical infrastructure with high availability needs
Diagnostic Capabilities
The controller logs up to 3000 events per OPC client. It transmits 36-86 events/sec to OPC servers. It handles 113-143 data messages/sec. Monitor clock synchronization within 1 ms between AC 800M controllers. Use the CNCP protocol for precise time alignment. The built-in backup battery (Lithium 3.6 V) retains settings during power loss.
Frequently Asked Questions (FAQ)
Q: Is this controller redundant?
A: Yes, it supports CPU, CEX-Bus, and S800 I/O redundancy for higher availability.
Q: What is the maximum number of I/O modules?
A: Up to 96 modules in single mode, or 84 in redundant mode.
Q: What communication protocols are supported?
A: MMS, IAC, Ethernet, PROFIBUS DP, and RS-232C serial.
Q: Can I use this in hazardous locations?
A: Yes, it is UL certified for Class 1, Zone 2 hazardous areas.
Q: What is the typical cycle time?
A: Down to 1 ms per application program.
Package Contents
- PM866AK01 Controller with base plate
- Built-in backup battery (Lithium 3.6 V)
- DIN rail mounting clip
- Ethernet address label (attached to base)
- Quick start guide (digital download)
Why Buy From Oiltech Controls?
- Over 15 years of experience in industrial automation spares.
- Global shipment support via FedEx, UPS, or DHL.
- All products are tested – surplus or refurbished options available.
- 12-month warranty on every order.
- Technical verification performed before shipment.
- Expert support for obsolete control systems.
Contact Information
Email: info@oiltechcontrols.com
Phone (WhatsApp): +86 158 8020 0923
Warranty & Shipping
We provide a standard 12-month warranty. We ship globally with FedEx, UPS, or DHL. Delivery times depend on destination. All shipments include tracking information.
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Original Source: https://www.oiltechcontrols.com/
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