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Home>ABB>ABB PM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001 Freelance Controller CPU Pair
ABB PM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001 Freelance Controller CPU Pair

ABB PM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001 Freelance Controller CPU Pair Item NO.: 2931396

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Product Name ABB PM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001 Freelance Controller CPU Pair
Item NO. 2931396
Weight 0.1 kg = 0.2205 lb = 3.5274 oz
Category ABB
Brand ABB
Creation Time 2026-11-10

ABB Freelance · AC 900F Controllers

ABB PM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001 Freelance Controller CPU Pair

Two AC 900F CPU options documented together for deliberate memory, interface and expansion selection.

01

Product Summary

ABB PM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001 identifies two different AC 900F central processing units. PM 901F uses a 400 MHz processor with 11 MB controller memory, while PM 902F uses an 800 MHz processor with 24 MB controller memory.

The communication and expansion boundaries also differ. PM 901F provides three Ethernet interfaces and two communication-interface slots; PM 902F provides four Ethernet interfaces and two communication slots. Both require an external 24 V DC supply, but their chassis dimensions and application capacity are not the same.

This paired page is a comparison record, not a statement that the CPUs are interchangeable. The installed project size, direct I/O count, interface modules, terminal units, display, battery and Freelance software release must be checked against the exact article number selected.

02

Specification Details

BrandABB
Complete modelsPM 901F 3BDH001001R0001 / PM 902F 3BDH001000R0001
Controller familyFreelance AC 900F
Product typeCentral processing units
PM 901F processor400 MHz
PM 902F processor800 MHz
PM 901F controller memory11 MB
PM 902F controller memory24 MB
PM 901F buffered SRAM3 MB
PM 902F buffered SRAM8 MB
PM 901F DRAM8 MB
PM 902F DRAM16 MB
PM 901F Ethernet3 interfaces
PM 902F Ethernet4 interfaces
Communication slots2 on each model
Approximate I/O scalePM 901F: 400 / PM 902F: 1,500
SupplyExternal 24 V DC
Software baselinePM 901F: 2016+ / PM 902F: 2019+
03

Model Selection Boundary

The paired PM 901F and PM 902F record is useful only when their distinct capacity and hardware boundaries remain visible.

Separate the article numbers

Keep PM 901F with 3BDH001001R0001 and PM 902F with 3BDH001000R0001 in every quote and service record. Reversing the similar article numbers changes the requested CPU.

Size the controller project

Compare controller memory, processor demand and the expected I/O scale with the deployed application. PM 902F offers the larger resource envelope, but selection should follow the project data.

Count physical interfaces

Inventory Ethernet connections and installed communication modules. Both CPUs provide two communication slots, while their built-in Ethernet counts differ by one.

04

Migration Decision Record

Moving between PM 901F and PM 902F requires a controlled project decision rather than a visual hardware swap.

Check software support

Confirm the exact Freelance release and controller firmware baseline before conversion. The catalog associates PM 901F with 2016 or later and PM 902F with 2019 or later.

Rebuild the station map

Record terminal units, direct I/O modules, interface-slot allocation, Ethernet addressing and serial use. Reconcile that map with the destination CPU before wiring is moved.

Test capacity and behavior

Compile, download and test the migrated application in a planned window. Validate execution, communications, alarms and process interlocks before accepting the higher-capacity controller.

05

Questions & Answers

06

Contact Details

Moore Automation

https://www.mvme.cn/

Moore Automation can coordinate a paired AC 900F enquiry without collapsing two distinct CPUs into one record. Model-to-article matching, document notes, quoted quantities, package information and delivery tracking can remain traceable by line item.

  • Two-model identity separation
  • Controller-capacity information capture
  • Line-item quotation preparation
  • Delivery record tracking
07

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