KFAS: Fanuc CNC Parts, Service, & Repair
Fanuc 0i-D FROM/ SRAM A20B-3900-0240
FROM 128MB/ SRAM 1MB
A20B-3900-0240 FROM ID: E4, SRAM ID: 03 The FROM stores various control
software programs, user software
programs such as PMC Ladder.
The SRAM is a battery-backed memory module.
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