Products Description
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Product Description
The ABB PM 904F 3BDH001002R0001 is a high-performance CPU base unit from the Freelance AC 900F controller family, engineered to support complex automation tasks across a wide range of industries. Designed to handle up to 1,500 I/O points, this module is suitable for mid-to-large-scale control applications. Equipped with a PowerQUICC II Pro processor running at 800 MHz, it offers enhanced processing performance for demanding automation requirements.
The unit features 4 Ethernet interfaces (IEEE 802.3 compliant), 3 serial RS-232C ports, and supports advanced Ethernet-based communication protocols such as Modbus TCP and IEC 60870-5-104, enhancing system interoperability and network integration. Its built-in SD card slot, G3 corrosion protection, and optional redundancy capabilities make it highly reliable and robust for industrial environments.
This CPU requires an external 24 V DC power supply and operates with software version 2019 or higher. It also accommodates optional modules such as the TD 951F display unit and TA 951F battery, which are not included by default.
Technical Specifications
| Parameter | Value |
|---|---|
| Article Number | 3BDH001002R0001 |
| Processor Type | PowerQUICC II Pro |
| Clock Frequency | 800 MHz |
| RAM for Application | 16 MB battery-buffered SRAM |
| DRAM | 32 MB |
| Total Memory | 48 MB |
| Number of Tasks | 9 |
| Performance | 0.12 ms for 1000 Boolean operations |
| Ethernet Ports | 4 × RJ-45, IEEE 802.3, 10/100 Mbit/s |
| Serial Interfaces (RS-232C) | 3 (2 general-purpose, 1 for service tools) |
| Built-in Backup Battery | Lithium (TA 951F) |
| SD Card Support | Yes |
| Power Supply | External 24 V DC |
| Power Consumption (Typical/Max) | 24 W / 30 W |
| Power Dissipation | 18 W |
| Clock Synchronization | Supported |
| Redundancy Support | Yes |
| Switch Over Time in Redundant Config | 500 ms |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Temperature Gradient | 3K/min |
| Relative Humidity | Max. 93%, non-condensing |
| Vibration Resistance | 2 g, 2 Hz to 150 Hz |
| Corrosion Protection | G3 compliant per ISA 71.04 |
| Protection Class | IP20 |
| Dimensions (W × H × D) | 285 × 152 × 95 mm |
| Weight | 1.1 kg |
Features
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High-speed 800 MHz PowerQUICC II Pro processor
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4 × Ethernet interfaces for multi-channel communication
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3 × RS-232C ports for diagnostics and serial interfacing
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Up to 1500 I/O channels supported
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Integrated SD card interface for configuration storage
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Built-in support for Modbus TCP and IEC 60870-5-104
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Optional redundancy for high-availability systems
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G3 corrosion protection as standard
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Supports controller locking via optional LCD unit
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OS loadable during software installation
Advantages
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Scalable Architecture – Easily expandable for large systems with modular interface slots.
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Robust Communication – Multiple Ethernet and serial ports ensure flexibility in industrial networks.
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High Reliability – Optional redundancy and built-in backup battery ensure uninterrupted operation.
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Future-Ready Protocols – Supports Ethernet-based industrial protocols.
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Secure Operation – Optional LCD unit enhances system security with lock functionality.
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Durability – Designed for extended industrial conditions with wide operating temperature range and G3 coating.
Applications
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Distributed Process Control Systems (DCS)
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Power Generation Facilities
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Water and Wastewater Management Plants
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Oil and Gas Processing Units
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Chemical and Pharmaceutical Manufacturing
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Pulp and Paper Automation
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Food and Beverage Industry Automation
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Energy Distribution and Utility Automation
Latest News Headline
“ABB Expands Freelance AC 900F Series: PM 904F CPU Module Powers Up Large-Scale Automation Projects with Enhanced Redundancy and Network Protocol Support”
Related ABB Freelance / Compatible Models
| Model | Description | CPU Speed | Memory | I/O Capacity | Ethernet Ports | Redundancy | Dimensions (mm) | Weight |
|---|---|---|---|---|---|---|---|---|
| PM 902F | Entry-level CPU unit | 400 MHz | 32 MB | 500 I/Os | 2 | No | 220 × 120 × 95 | 0.85 kg |
| PM 903F | Mid-range controller | 600 MHz | 40 MB | 1000 I/Os | 3 | Optional | 250 × 140 × 95 | 0.95 kg |
| TD 951F | Optional Display Unit | – | – | – | – | – | 140 × 60 × 25 | 0.25 kg |
| TA 951F | Backup Lithium Battery | – | – | – | – | – | – | 0.05 kg |
| CI 930F | Communication Interface Module | – | – | – | – | – | 100 × 50 × 30 | 0.2 kg |
| PM 901F | Compact Freelance controller base unit | 300 MHz | 24 MB | 250 I/Os | 1 | No | 200 × 100 × 95 | 0.75 kg |
Popular ABB Automation Models
| Model | Description | Category | Ethernet Ports | Redundancy | Dimensions (mm) | Weight |
|---|---|---|---|---|---|---|
| PM861K01 | System 800xA Controller Kit | Processor Module | 2 | Yes | 186 × 110 × 130 | 1.3 kg |
| PM866 | System 800xA High-End CPU | Processor Module | 2 | Yes | 186 × 110 × 130 | 1.3 kg |
| PM810V2 | S800 Processor Module | Processor Module | 2 | Optional | 180 × 120 × 115 | 1.1 kg |
| AC 800M PM891K01 | High-Performance CPU for 800M | Processor Module | 2 | Yes | 217 × 160 × 127 | 1.2 kg |
| CI854AK01 | Communication Interface PROFIBUS | Communication Module | – | – | 186 × 100 × 65 | 0.7 kg |
| AI835 | Analog Input Module, S800 I/O | Analog Input Module | – | – | 115 × 45 × 110 | 0.3 kg |
FAQ
Frequently Asked Questions (FAQ)
Q1: What is the maximum number of I/Os supported by the PM 904F?
A1: The PM 904F supports up to 1,500 I/O points, making it ideal for mid-to-large automation systems.
Q2: Is redundancy supported in this CPU module?
A2: Yes, the PM 904F supports optional redundancy with a switch-over time of 500 ms.
Q3: What communication protocols are natively supported?
A3: It supports Ethernet-based protocols such as Modbus TCP and IEC 60870-5-104.
Q4: Can I use this module in high-humidity environments?
A4: Yes, it supports up to 93% relative humidity (non-condensing) and is G3 compliant for corrosion protection.
Q5: What software version is required to operate this CPU?
A5: A software version from 2019 or higher is mandatory for operation.
Q6: Are the TD 951F display and TA 951F battery included?
A6: No, these accessories must be ordered separately.
Q7: How is data backed up in case of power loss?
A7: A lithium battery (TA 951F) is used for battery-buffered SRAM backup.
Q8: Does the PM 904F include an internal power supply?
A8: It requires an external 24 V DC power supply; it does not include an internal PSU.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
