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1784-CF128 | Allen-Bradley CompactFlash Card

1784-CF128 | Allen-Bradley CompactFlash Card

Regular price $136.00 USD
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 Technical Specifications for 1784-CF128

Manufacturer Rockwell Automation
Memory Size 128 MB
Module Type CompactFlash Card
Part Number/Catalog No. 1784-CF128
Brand Allen-Bradley
Supported secondary functions File opening, File closing, File printer setting, Checksum calculations, Checksum verifications, Data parsing and Error handling
Supported Basic Functions Create, Write, Read, Delete files
Compatible Controllers ControlLogix 5560
Maximum data size 450 Bytes (read / Write)
Removal and Insertion under Power Not supported
No. of open files One (1)
No. of files 250 Files
Memory Format FAT 16
Memory Type Non-Volatile
Series ControlLogix
Application ControlLogix L6 Controllers
Memory 128 Megabytes
UPC 10612598349897

About 1784-CF128

The 1784-CF128 is an Allen-Bradley manufactured CompactFlash Card. This memory module features an integrated non-volatile memory amounting to 128 MB.

The 1784-CF128 is compatible with 1756-L6X or 5560 ControlLogix controllers. It serves as an additional user program and program data memory which supports basic functions such as create, write, read and delete controller files.

The memory module may be used to backup data from the controller’s volatile memory. ControlLogix 5560 Controllers may be configured to automatically load program from the 1784-CF128 which contributes to increasing the machine availability as unwanted controller shutdown due to program deletion may be prevented.

The 1784-CF128 also supports other functionalities, related to the basic functions supported by the memory module. These functionalities include opening a file, closing a file, Setting of file printer, Checksum calculations, Checksum verifications, Data parsing and Error handling. This memory module supports up to 4500 bytes of application code which may be optionally expanded.



The 1784-CF128 has a limited lifespan. To maximize operation of this memory device, configure the controller to write or save data to the module when necessary or through a triggered event. Writing of data every program scan significantly lessens the module’s lifespan. The 1784-CF128 supports FAT16 format wherein, up to 250 files may be saved on the root directory.

FAQ for 1784-CF128

Does the 1784-CF128 support Removal and Insertion Under Power (RIUP)?


No, it does not support RIUP.

What is the minimum file size or resolution?


Minimum file size is 450 Bytes.

What are the controllers supported by the 1784-CF128?


The 1784-CF128 supports ControlLogix 5560 controllers.

Technical Description of 1784-CF128

The Allen-Bradley ControlLogix 1784-CF128 is an Industrial Compact Flash Card with 128 Megabytes.
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