OMRON CPM2C-8EDM CPU Unit – Obsolete CPM2C Series Spare Part
OMRON CPM2C-8EDM CPU Unit – Obsolete CPM2C Series Spare Part When an OMRON CPM2C-8EDM CPU unit fails on the production…
Model: CQM1-ME04K CQM1-ME08K
Product Overview
Commercial availability is handled through direct RFQ, model verification and export-oriented follow-up rather than public cart checkout.
Datasheet Preview
Use attached product manuals when available. If the manual is not public yet, request the full file directly through RFQ.
Commercial Path
Product pages on DRIVEKNMS are designed to verify model, brand and series first, then move the buyer into one clean quotation path.
Technical Dossier
The OMRON CQM1-ME04K and CQM1-ME08K are EEPROM-based memory modules designed for the CQM1 series Programmable Logic Controllers — a platform that remains deeply embedded in legacy automation lines across food processing, pharmaceutical packaging, automotive assembly, and discrete manufacturing. As OMRON has progressively phased out CQM1-series support, sourcing these memory modules through standard distribution channels has become increasingly unreliable. Procurement managers operating aging PLC infrastructure face a binary risk: pay a premium for verified stock now, or absorb the cost of unplanned downtime later. This page is designed to help you make that decision with full cost visibility.
| Manufacturer | OMRON Corporation |
| Part Numbers | CQM1-ME04K / CQM1-ME08K |
| Compatible Series | OMRON CQM1 PLC |
| Memory Type | EEPROM (non-volatile, battery-free retention) |
| Capacity | CQM1-ME04K: 4K words | CQM1-ME08K: 8K words |
| Function | Program backup and transfer for CQM1 CPU units |
| Country of Origin | Japan |
| Condition | New / Surplus New (clearly stated per order) |
| Inventory Status | Limited surplus stock available — subject to prior sale |
| Lead Time | In-stock orders: 1–3 business days | Sourced orders: 7–21 business days |
| Minimum Order Quantity | 1 unit (volume pricing available from 5 units) |
| Export Documentation | Commercial invoice, packing list, certificate of origin available |
Procurement decisions on legacy PLC components are rarely just about unit price. The true cost of a CQM1-ME04K or CQM1-ME08K failure extends well beyond the part itself. Consider the following when evaluating total cost of ownership (TCO):
Unplanned Downtime Cost: A single hour of production stoppage on an automated line can cost USD $5,000–$50,000 depending on industry and throughput. A memory module failure that corrupts or loses the PLC program — without a verified backup module on hand — can extend downtime from hours to days while a replacement is sourced through emergency channels at 3–5× standard pricing.
Spare Parts Turnover Rate: For CQM1-series components, we recommend maintaining a minimum buffer of 1–2 memory modules per active CPU unit. The spare parts turnover rate for this category is low (typically 1–3 units per year per facility), meaning the carrying cost is minimal relative to the downtime risk it mitigates.
Sourcing from DriveKNMS vs. Emergency Spot Market: Purchasing through a verified industrial surplus supplier at a planned price point is consistently 30–60% less expensive than emergency procurement through spot brokers during a production crisis. Establishing a supply relationship before failure occurs is the single highest-ROI procurement action for legacy automation assets.
Migration Cost Consideration: If your engineering team is evaluating a CQM1 → CP1/CJ2 migration, retaining functional memory modules extends the viable life of existing hardware and defers capital expenditure. A USD $200–$500 memory module investment can defer a USD $15,000–$80,000 PLC upgrade by 12–36 months.
Every unit shipped by DriveKNMS undergoes a pre-shipment inspection protocol. We do not ship untested or cosmetically damaged units without explicit buyer disclosure and price adjustment.
We operate as a specialized industrial automation parts supplier with a sourcing network spanning authorized distributors, OEM surplus channels, and vetted secondary market partners across Asia, Europe, and North America. Here is what that means in practice for your procurement workflow:
Q: What payment terms are available for corporate buyers?
A: We accept T/T in advance for standard orders. For qualified buyers with established order history, net-30 terms are available upon credit review. Contact us to initiate a credit application.
Q: What is your warranty policy if a unit fails on arrival?
A: DOA (Dead on Arrival) units are replaced or refunded within 7 business days of confirmed failure report. We require photographic evidence and, for high-value claims, return of the defective unit at our cost.
Q: Do you offer volume discounts for bulk orders?
A: Yes. Tiered pricing applies from 5 units. Orders of 10+ units receive priority sourcing and dedicated account management. Submit an RFQ with your required quantity for a formal quotation.
Q: Can I return a unit if it is not compatible with my system?
A: Compatibility returns are accepted within 14 days of receipt, provided the unit is unused and in original packaging. Buyer is responsible for return freight. We strongly recommend confirming compatibility via our technical team before purchase.
Q: How do I verify the unit is genuine OMRON and not a counterfeit?
A: We provide a written authenticity declaration with every order. For high-stakes procurement, we can arrange third-party inspection or provide detailed pre-shipment photos of label, PCB, and packaging for your review.
Q: What if I need a compatible alternative because CQM1-ME04K is unavailable?
A: Our technical team will advise on compatible alternatives within the CQM1 ecosystem or recommend a migration path. We do not substitute parts without explicit buyer approval.