FORCE SYS68K/CPU-30BE/16-REV3 Replacement for SYS68K

Product Overview

FORCE SYS68K/CPU-30BE/16-REV3 Replacement for SYS68K Series: Smooth Transition & Legacy System Upgrade

The FORCE SYS68K/CPU-30BE/16-REV3 is a VMEbus 6U CPU board built around the Motorola MC68030 processor running at 16 MHz, originally manufactured by FORCE Computers for high-reliability industrial control, real-time automation, and embedded computing applications. As this model has reached end-of-life and is no longer in active production, many facilities operating legacy VMEbus-based control systems — including distributed control systems (DCS), SCADA platforms, and machine automation controllers — are now facing urgent replacement and upgrade decisions.

TOPNLMS maintains verified stock of the SYS68K/CPU-30BE/16-REV3 and provides a fully tested, ready-to-ship replacement solution for engineers and procurement teams managing system continuity, scheduled maintenance windows, or emergency breakdowns. Each unit is inspected and function-tested prior to dispatch from our Xiamen warehouse, with global logistics support and a 12-month replacement warranty.

Compatibility Comparison Table

Seamless Upgrade Solutions

Migrating from a legacy VMEbus control platform to a modernized or equivalent replacement involves more than swapping the CPU board. A complete system transition typically requires coordinated replacement of several interdependent components. When upgrading from an older SYS68K/CPU-26 or SYS68K/CPU-21 to the CPU-30BE/16-REV3, engineers should verify compatibility with the existing SYS68K/ISIO-1 intelligent serial I/O board and the SYS68K/SIO-1 multi-channel serial interface module, both of which share the same VMEbus backplane and P2 connector pinout.

For systems relying on real-time data acquisition, the SYS68K/ISCSI-1 SCSI interface board and SYS68K/FDIO-1 floppy disk I/O module may also need to be evaluated for firmware compatibility with the MC68030 CPU. In distributed control architectures where the VMEbus chassis communicates upstream to a DCS host via Ethernet or serial fieldbus, the SYS68K/LANCE-1 Ethernet controller board provides the network interface layer and is fully compatible with the CPU-30BE/16-REV3 in the same rack.

Power integrity is critical during any retrofit. The existing VMEbus power supply module in the chassis should be load-tested before commissioning the replacement CPU board, as aging capacitors in legacy power units can cause intermittent resets under the MC68030’s peak current draw. If the chassis uses a FORCE SYS68K/VME-7U or similar 7U subrack, the physical slot allocation and card guide spacing remain unchanged, simplifying the physical installation.

For facilities transitioning to a fully modernized control architecture, the CPU-30BE/16-REV3 can serve as a stable interim platform while the broader migration to a current-generation PLC or DCS controller — such as a Siemens S7-400 rack system or an Allen-Bradley ControlLogix chassis — is planned and validated. During this transition period, maintaining a tested spare of the SYS68K/CPU-30BE/16-REV3 in inventory is a standard best practice for minimizing unplanned downtime risk.

Retrofit Guidance FAQ

Q: Is the SYS68K/CPU-30BE/16-REV3 a direct drop-in replacement for earlier SYS68K CPU boards?
A: Yes. The CPU-30BE/16-REV3 uses the standard VMEbus 6U mechanical form factor and P1/P2 connector layout, making it a slot-compatible replacement for earlier SYS68K CPU boards such as the CPU-21 and CPU-26 series. No chassis modification or backplane rewiring is required.

Q: Will my existing application software and RTOS image run on this board?
A: The MC68030 is binary-compatible with MC68020 and upward-compatible with MC68000 instruction sets. Applications compiled for earlier 68K-family processors will generally run without recompilation. RTOS images (VxWorks, OS-9, pSOS) built for the SYS68K platform are typically portable across CPU-30 series boards with BSP-level configuration changes only.

Q: What communication protocols does this board support?
A: The CPU-30BE/16-REV3 provides RS-232 and RS-422 serial interfaces via the front panel and P2 connector. When paired with SYS68K serial I/O expansion boards, the system supports Modbus RTU, proprietary DCS serial protocols, and custom fieldbus implementations. Ethernet connectivity requires an add-on board such as the SYS68K/LANCE-1.

Q: How do I verify the board is functional before installing it in a live system?
A: All units shipped by TOPNLMS are pre-tested using a VMEbus test chassis with power-on self-test (POST) verification and memory diagnostics. We recommend bench-testing the board in an isolated chassis with your RTOS boot image before installing it in the production rack.

Q: What is the lead time and shipping arrangement?
A: In-stock units ship within 1–3 business days from Xiamen, China. International express delivery (DHL, FedEx) typically reaches Europe and North America within 3–7 business days. Customs documentation, commercial invoice, and packing list are provided with every shipment.

Warranty Assurance

Every FORCE SYS68K/CPU-30BE/16-REV3 unit supplied by TOPNLMS is covered by a 12-month replacement warranty from the date of shipment. Our pre-shipment inspection process includes visual inspection, power-on self-test, memory read/write verification, and serial port functional testing. Units that fail any inspection step are quarantined and not dispatched.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our after-sales response time is within 24 hours on business days. We maintain a dedicated stock reserve for warranty replacements to ensure rapid turnaround without waiting for new procurement cycles.

For procurement teams requiring documentation, we can provide test reports, photos of the physical unit, and shipping tracking upon request. Bulk orders and long-term supply agreements are available for facilities managing multi-site VMEbus infrastructure or building strategic spare parts inventory.

Contact our technical sales team to confirm availability, request a quotation, or discuss your specific retrofit requirements.