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Home>ABB>ABB PM 904F 3BDH001002R0001 Freelance High-capacity CPU
ABB PM 904F 3BDH001002R0001 Freelance High-capacity CPU

ABB PM 904F 3BDH001002R0001 Freelance High-capacity CPU Item NO.: 2931397

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Product Name ABB PM 904F 3BDH001002R0001 Freelance High-capacity CPU
Item NO. 2931397
Weight 0.1 kg = 0.2205 lb = 3.5274 oz
Category ABB
Brand ABB
Creation Time 2026-11-10

ABB Freelance · AC 900F Controller

ABB PM 904F 3BDH001002R0001 Freelance High-capacity CPU

High-capacity 800 MHz AC 900F CPU with four Ethernet interfaces and four communication-module slots.

01

Model Overview

ABB PM 904F 3BDH001002R0001 is a high-capacity AC 900F central processing unit. Its published platform combines an 800 MHz processor, 48 MB controller memory, 16 MB buffered SRAM and 32 MB DRAM for larger Freelance controller applications.

Four Ethernet interfaces and four communication-interface slots distinguish PM 904F from smaller AC 900F CPU variants. ABB associates the module with an approximate scale of 1,500 I/O and allows up to ten direct I/O modules, but the usable project size still depends on application structure and communications load.

The CPU needs an external 24 V DC supply and a compatible 2019-or-later Freelance environment. Its display unit, battery and terminal units are separate station considerations, so a complete replacement review must extend beyond the article number.

02

Technical Details

BrandABB
Complete modelPM 904F 3BDH001002R0001
Controller familyFreelance AC 900F
Product typeCentral processing unit
Processor clock800 MHz
Controller memory48 MB
Buffered SRAM16 MB
DRAM32 MB
Ethernet interfaces4
Communication slots4
Direct I/O modulesUp to 10
Approximate I/O scale1,500
SupplyExternal 24 V DC
Software baselineFreelance 2019 or later
Dimensions285 × 152 × 95 mm
WeightApproximately 1.1 kg
03

Capacity Allocation

PM 904F resources should be allocated from the project architecture rather than inferred from the maximum figures alone.

Profile the application

Review program size, task execution, retained data and communication demand before selecting ABB PM 904F. This determines whether the 48 MB controller-memory envelope is appropriate.

Assign four interface slots

List each planned communication module and its terminal unit before assembly. A four-slot CPU still needs a deliberate allocation that respects protocol, channel and station requirements.

Map direct I/O order

Number the directly attached modules from the CPU outward and compare the list with the hardware tree. The published limit of ten is not a substitute for checking type and order.

04

High-capacity Station Commissioning

A checkpoint-based start-up keeps a large controller station diagnosable while interfaces are introduced.

Power the base cleanly

Verify the external 24 V DC source, grounding and terminal-unit connections with the station load present. Correct voltage at no load does not prove stability during start-up.

Bring up networks in stages

Enable engineering access first, then controller links and external systems across the four Ethernet interfaces. Record addresses and switch ports for every successful step.

Validate after full load

Once all I/O and communications are online, observe task execution, memory use, diagnostic logs and exception traffic. Acceptance should reflect the real application rather than an empty CPU test.

05

Customer Questions

06

Sales Contact

Moore Automation

https://www.mvme.cn/

Moore Automation structures PM 904F enquiries around the full article number and station scope. Available product records, documentation status, quoted accessories, packing information and shipment updates can be coordinated in one commercial trail.

  • Full article-number review
  • Station-scope information capture
  • Accessory quotation coordination
  • Dispatch and tracking updates
07

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