Define the CPU374 Download Failure
A GE Fanuc 90-30 CPU374 reports NO USER PROGRAM PRESENT after an attempted download from Proficy Machine Edition V5.5. The target CPU firmware is 12.16. The attempted transfer included hardware configuration, logic, and initial/forced values, but the available evidence does not include the download transaction result or any preceding fault-table entries.
| Evidence | Engineering implication |
|---|---|
| CPU374 firmware 12.16 | Use this exact CPU and firmware combination when checking software compatibility. |
| Proficy Machine Edition V5.5 | Compatibility with firmware 12.16 remains an explicit unknown. |
NO USER PROGRAM PRESENT |
The CPU does not recognize a stored user program after the attempted operation. |
| Backup and working-PLC projects produce the same result | A defect unique to the backup project is less likely, but not conclusively eliminated. |
Separate Project Content from the Transfer Path
The test using a program uploaded from a working PLC is the strongest discriminator. Because that project also leaves the CPU374 without a recognized user program, investigate the target definition, software-to-firmware compatibility, connection, and download transaction before editing application logic.
Do not treat selection of hardware configuration, logic, and initial/forced values as proof that each component reached the controller. The missing evidence is the transfer result: completion status, rejected components, compatibility messages, communication interruptions, and fault entries created during the attempt.
Run a Controlled Download and Verification
- Confirm that the project target identifies the installed CPU374 and record the controller firmware as 12.16.
- Verify through GE Fanuc documentation or an official support channel that Proficy Machine Edition V5.5 supports that exact CPU374 firmware. Do not assume compatibility merely because the CPU can be selected.
- Repeat the download with hardware configuration and logic selected. Include initial/forced values only if the application requires them.
- Capture the complete download result, including warnings, rejected components, and communication errors. A failed or partial transaction must be resolved before interpreting the PLC fault table.
- Reconnect or refresh the online status, then read the PLC fault table immediately. Verify whether
NO USER PROGRAM PRESENTremains and record any additional entries.
Use the Result to Select the Next Action
If both the backup and working-PLC projects fail at the same transfer stage, focus on the common elements: CPU374 target, firmware 12.16, Proficy Machine Edition V5.5, and the communication path. If the software reports incompatibility or rejects a component, resolve that compatibility issue through official GE Fanuc documentation or support before attempting further downloads.
If the software reports an unqualified successful logic transfer but the CPU still reports NO USER PROGRAM PRESENT, preserve the transaction log and complete fault table for escalation. The supplied evidence is insufficient to distinguish a software compatibility problem, an incomplete transfer, or a controller-side storage problem without those records.
FAQ
Why does a GE Fanuc CPU374 show NO USER PROGRAM PRESENT after download?
The message means the CPU does not recognize a stored user program. Check the download transaction for rejected logic, compatibility messages, or communication failure before changing the application.
Does Proficy Machine Edition V5.5 support CPU374 firmware 12.16?
The supplied evidence does not establish compatibility. Verify the exact V5.5 and firmware 12.16 combination in official GE Fanuc documentation or through an official support channel.
Does failure with a program from a working PLC prove the CPU374 is defective?
No. It makes a backup-specific problem less likely, but the shared software version, target configuration, communication path, and controller must still be isolated using the transaction result and PLC fault table.