2.General Description (English)

• Purpose: Provides non‑volatile and volatile memory for controller operation, program storage, and parameter backup.

• Form Factor: Plug‑in PCB board for controller backplane.

• Compatibility: Designed for older Yaskawa/Motoman generations: XRC, MRC, Yasnac i80 / J300 / LX series CNC.

• Common Use Case: Replacement/upgrade of faulty memory boards in robots and CNC machines.

3. Typical Specifications (from suppliers)

• Category: Industrial PCB / Memory Card

• Manufacturer Part No.: JANCD‑MM01B

• Condition: New / refurbished / used (pulled from working equipment)

• Weight: ~0.4–0.7 kg (approximate)

• Mounting: Backplane slot mount (no external wiring)

4. Market Aliases (without numbers)

• JANCD‑MM series: Memory Card, Memory PCB, RAM/ROM Board, CNC Memory Module

5. If you need a formal English datasheet

• Official Yaskawa standalone datasheet for MM01B is not public (old model, only in full controller manuals).

• I can extract and compile for you:

  • JANCD‑MM series general specs (English)

  • MM01B functional description & pin assignment (English)

  • Comparison table: MM01B / MM14B / MM20 (English)