Home/Products/Industrial Control Automation/FANUC A20B-3900-0163 System Host FROM Card with 32MB FROM + 1MB SRAM for FANUC 16i, 18i, 20i, and 21i CNC Plug-in DIMM Memory Board
FANUC A20B-3900-0163 System Host FROM Card with 32MB FROM + 1MB SRAM for FANUC 16i, 18i, 20i, and 21i CNC Plug-in DIMM Memory Board
Applicationindustry:Manufacturing, Process Control, Robotics
Numberofinputs:16 To 64
Communication Protocol:Modbus, Ethernet/IP, Profibus
Compatibility:SCADA Systems, HMI Panels
Protocolsupport:Ethernet/IP, Modbus TCP, PROFINET
Highlight:
FANUC CNC system host card
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32MB FROM 1MB SRAM memory board
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FANUC 16i 18i 20i 21i DIMM
Basic Infomation
Place of Origin:China
Brand Name:FANUC
Certification:250$
Model Number:A20B-3900-0163
Payment & Shipping Terms
Packaging Details:pieces
Delivery Time:3-5 days
Payment Terms:T/T
Gallery
FANUC A20B-3900-0163 System Host FROM Card with 32MB FROM + 1MB SRAM for FANUC 16i, 18i, 20i, and 21i CNC Plug-in DIMM Memory Board
Product Description
FANUC A20B-3900-0163 System Host FROM Card
The FANUC A20B-3900-0163 is a genuine, plug-in combo memory module card designed for early FANUC i Series (Model B) CNC controllers and FANUC Robotics systems. It combines Flash ROM (FROM) and Static RAM (SRAM) onto a compact dual in-line memory module (DIMM) form factor to provide high-speed data processing and system initialization data storage on the CNC master board.
Technical Specifications
Memory Capacity
32MB FROM + 1MB SRAM combination storage
Form Factor
Plug-in DIMM memory board configuration
Compatibility
FANUC 16i, 18i, 20i, and 21i CNC control setups as well as LR-Mate robotic mainboards
Alternative Reference
A02B-0281-H047
Functional Overview
Flash ROM (FROM) Purpose: The 32MB FROM segment is dedicated non-volatile storage used to host CNC control software programs, system files, and complex ladder logic configurations.
SRAM Purpose: The 1MB SRAM segment functions as battery-backed memory utilized for parameter tracking, program execution, and fast data swap files during production.
Troubleshooting Information
Common Failure Symptom: If this component degrades or experiences data integrity faults, the CNC controller will typically trigger a RAM parity alarm on the screen.