The 8520-FR2A is a flash ram manufactured by Allen-Bradley, which is applicable to the processor boards of the 9 series. The 8520-FR2A is a programmable memory device that constitutes a flash sim on the CPU Board. The presentation of the 8520-FR2A flash ram comes as a single memory module of 2 MB each. This ram has various functions as a spare part of one of the most important devices in control processes such as the CPU Board; firstly, the 8520-FR2A flash ram backs up information of the executive program, PAL, and AMP. It also retains relevant information to the process even when a power failure has occurred. This flash ram memory module is in charge of backing up all of its machine’s information that is generated during a process, such as reports, events, statistics, and configurations. The executive program is also saved in this memory module.
The CPU Boards of the 9 series can use up to two memory module flash SIMM. Depending on the processor board module, the memory modules can be located on the lower half, unless given a 9/290 processor board; in this case, it requires extra memory modules installed on the top half of the module as well. When programming, the operator must be extremely cautious, given that with simple steps regarding AMP could cause both the program in the memory and the program in the backup to be removed from the control. Either way, the selections regarding PAL could cause the PAL program in FLASH memory to be deleted. The main issues when dealing with the Allen-Bradley 8520-FR2A flash ram delivered by the CPU Board indicator are that the flash ram memory modules are not installed, and flash ram memory modules are empty or missing; this can be corrected by checking that the memory modules are installed on the right track.
Repair Services for 8520-FR2A
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Our highly skilled technicians can repair your 8520-FR2A. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.
Revisions for 8520-FR2A
Please refer to the manual for more information about the 8520-FR2A such as the wiring diagrams, data sheets,
firmware information and migration or obsolescence details.
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||8520-FR2A/A, Series A, Rev A