Product Details
The ABB PM 902F 3BDH001000R0001, also cataloged as the PM 902F CPU Module, operates as a dedicated hardware component for central processing and logic execution within Freelance AC 900F system platforms. Powered by an 800 MHz PowerQUICC II Pro processor, the 1.1 kg module executes 1,000 boolean operations in 0.12 ms across up to 9 controller tasks. Featuring 24 MB total memory with 8 MB RAM allocated for application programs, the hardware incorporates four 10/100 Mbit/s RJ-45 Ethernet ports and three RS-232C serial interfaces, running on a 24 VDC supply with support for redundancy switchover within 500 ms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | PM 902F (3BDH001000R0001) |
| Base Model | PM 902F |
| Brand | ABB |
| Origin | Germany |
| Weight | 1.1 kg (including base) |
| Dimensions | 227 mm x 152 mm x 95 mm (W x H x D) |
| Operating Temp | 0 deg C to +60 deg C |
| Power Consumption | 24 W typical / 30 W maximum at +24 VDC (18 W dissipation) |
| Processor Type | PowerQUICC II Pro (800 MHz) |
| Execution Velocity | 0.12 ms per 1,000 boolean operations |
| Memory Capacity | 24 MB total (8 MB RAM available for application) |
| Communication Ports | 4 x Ethernet 10/100 Mbit/s (RJ-45), 3 x RS-232C |
| Redundancy Support | Yes (500 ms switchover time) |
| Backup Battery | Lithium battery (TA 951F) |
Backplane Bus Communication Velocity and Deterministic Networks
The central processing unit manages high backplane bus communication velocity across local and extended fieldbus networks to enforce real-time system synchronization. Quad onboard Ethernet channels establish deterministic networks for peer-to-peer controller exchange and I/O communication without throughput bottlenecks. Online firmware flash compatibility enables seamless background updates, ensuring application tasks maintain precise scan rates during system maintenance.
Frequently Asked Questions
Q: What is the maximum switchover delay when operating in a redundant controller topology?
A: In a dual redundant CPU configuration, the failover process from the primary to the standby PM 902F module executes within 500 ms.
Q: How is application memory preserved during complete primary 24 VDC power loss?
A: Non-volatile data retention and clock synchronization parameters are sustained by an integrated TA 951F lithium backup battery.
Field Installation Guidelines
- Mount the CPU module base securely onto a grounded 35 mm DIN rail inside a protective control cabinet.
- Connect primary 24 VDC power cables using correct wire gauges and verify supply stability within specified voltage tolerances.
- Use shielded RJ-45 Ethernet cables for all network connections and ground cable shields directly to the cabinet earth bar.
- Verify that the TA 951F lithium backup battery is fully seated before commissioning to prevent application data loss upon power removal.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
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