Industrial Control & Legacy Automation Solution — SBE M68CPU | MULTIBUS CPU Card
Where This Product Is Used
The SBE M68CPU CPU MULTIBUS Card is deployed in mission-critical industrial environments where Motorola 68000-series processor architectures remain the backbone of control infrastructure. Typical application sites include:
- Discrete Manufacturing Plants — CNC machine tool controllers, robotic arm sequencers, and programmable motion controllers built on MULTIBUS I backplane architectures.
- Process & Chemical Industries — Distributed Control System (DCS) front-end processors and data acquisition nodes requiring deterministic real-time performance.
- Power Generation & Utilities — Substation automation panels and SCADA front-end units where legacy MULTIBUS racks remain in service under long lifecycle mandates.
- Semiconductor & Electronics Fabrication — Wafer handling equipment and test systems originally designed around MULTIBUS I/II standards.
- Defense & Aerospace Ground Support — Test benches and ground support equipment (GSE) using ruggedized MULTIBUS chassis with extended operational lifespans.
- Oil & Gas Upstream/Downstream — Remote terminal units (RTUs) and wellhead controllers in brownfield installations where system replacement is cost-prohibitive.
Technical Specifications
| Attribute | Detail |
|---|---|
| Part Number | M68CPU |
| Manufacturer | SBE (Systems & Business Electronics) |
| Form Factor | MULTIBUS I (IEEE 796) Single-Board CPU Card |
| Processor Architecture | Motorola 68000 (M68K) Series |
| Bus Standard | MULTIBUS I — IEEE 796 compliant |
| Weight | 740 g |
| Condition | Refurbished / Tested / New Old Stock (specify on inquiry) |
| Warranty | 90-day functional warranty (Konmask standard) |
| Lead Time | Contact for availability — typically ships within 3–7 business days |
Why Engineers Specify This Model
- Drop-in Compatibility — Designed to slot directly into existing MULTIBUS I backplanes without hardware modification, minimizing downtime during replacement.
- Proven M68K Ecosystem — The Motorola 68000 architecture offers a mature, well-documented instruction set with extensive legacy software support, reducing re-validation effort.
- Real-Time Determinism — Suitable for hard real-time control loops where interrupt latency and cycle predictability are non-negotiable.
- Extended Service Life — Enables brownfield facilities to extend the operational life of existing MULTIBUS racks by 5–15 years without full system redesign.
- Cost Efficiency — A targeted CPU card replacement costs a fraction of a full control system upgrade, preserving capital budget for higher-priority projects.
- Sourced & Tested — Each unit sourced by Konmask undergoes functional verification before dispatch, reducing field failure risk.
Complete System Bill of Materials
For a complete MULTIBUS-based control node, engineers typically specify the following alongside the M68CPU:
- MULTIBUS I Backplane / Chassis (6, 12, or 20-slot)
- MULTIBUS Memory Expansion Card (SRAM / DRAM)
- MULTIBUS Serial I/O Card (RS-232 / RS-422 / RS-485)
- MULTIBUS Parallel I/O Card (Digital I/O)
- MULTIBUS Analog I/O Card (ADC/DAC modules)
- MULTIBUS Network Interface Card (Ethernet or proprietary fieldbus)
- Regulated DC Power Supply (5 VDC / ±12 VDC for MULTIBUS rail)
- EPROM / Flash Programmer for firmware loading
Contact support@konmask.com for bundled BOM sourcing assistance.
Compliance & Industry Standards
- IEEE 796 — MULTIBUS I bus standard compliance
- IEC 61131 — Compatible with control environments governed by IEC 61131 programming standards (application-level)
- RoHS — Verify per specific unit batch; legacy NOS units may predate RoHS directives — declare accordingly for import compliance
- CE / UL — Original SBE manufacturing certifications; confirm with documentation request
Quality Assurance & Sourcing
Konmask.com specializes in the procurement and quality verification of legacy industrial automation components. Our sourcing process for the SBE M68CPU includes:
- Multi-source procurement from authorized surplus dealers, OEM overstock, and decommissioned industrial sites
- Visual inspection for PCB damage, corrosion, component integrity, and connector condition
- Functional power-on test where applicable, with results documented
- Anti-static packaging with humidity indicator cards for international shipment
- Traceability documentation available on request (batch records, test reports)
How to Source This Part
- Confirm your backplane slot count and bus revision (MULTIBUS I vs. II) before ordering.
- Verify firmware/OS compatibility — confirm the M68K firmware image your system runs is compatible with the SBE M68CPU revision.
- Request a stock confirmation via support@konmask.com or WhatsApp +0086 19859288691 for lead time and condition grade.
- Place order through this product page or via purchase order (PO) for B2B accounts.
- Arrange freight — Konmask ships globally; DDP/DAP Incoterms available for qualified accounts.
Application-Specific FAQ
Q: Is the SBE M68CPU compatible with MULTIBUS II (IEEE 1296)?
A: No. The M68CPU is designed for MULTIBUS I (IEEE 796). MULTIBUS II uses a different electrical and mechanical standard. Confirm your backplane revision before ordering.
Q: Can this card run VxWorks, pSOS, or other legacy RTOS?
A: The M68K architecture supports a wide range of legacy RTOS environments including VxWorks, pSOS+, OS-9, and bare-metal firmware. Compatibility depends on your specific firmware image and memory map — consult your system documentation.
Q: Do you provide a warranty on refurbished units?
A: Yes. Konmask provides a 90-day functional warranty on all tested refurbished units. New Old Stock (NOS) units are sold as-is with inspection documentation.
Q: Can you source multiple units for a plant-wide spares program?
A: Yes. Contact us with your required quantity and delivery schedule. We support blanket POs and consignment stocking arrangements for qualified industrial accounts.
Q: What is the typical lead time?
A: Subject to stock availability — typically 3 to 7 business days for in-stock units. Contact us for real-time availability confirmation.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
