Download Considerations for a Safety Project

For a safety project, the programming software compares the following information in the offline project and the safety controller:
  • Controller serial number (if Match Project to Controller is selected)
  • Firmware major and minor revisions
  • Safety status
  • Safety signature (if one exists)
  • Safety-lock status
  • Safety partner (if one exists) - The programming software does not allow the download of a project configured for SIL 2 if a safety partner is to the right of the primary controller.
After the checks all pass, a download confirmation dialog box appears. Click Download.
The programming software displays status messages in the download dialog, progress screen, and the Errors window.
Status Messages
Software Message
Action
Unable to download to the controller. Mismatch between the offline project and the controller serial number. Selected controller may be the wrong controller.
Connect to the correct controller or verify that this is the correct controller. If it is the correct controller, check the Update project serial number checkbox to allow the download to proceed. The project serial number is modified to match the controller serial number.
Unable to download to the controller. The major revision of the offline project and the controller’s firmware are not compatible.
Choose Update Firmware. Choose the required revision and click Update. Click Yes to confirm your selection.
Unable to download a SIL 2 application, Safety Partner is Present.
Remove the safety partner.
Unable to download to controller. The safety partner is missing or unavailable.
Cancel the download process. Install a compatible safety partner before attempting to download.
Unable to download to controller. The firmware revision of the safety partner is not compatible with the primary controller.
Update the firmware revision of the safety partner. Choose Update Firmware. Choose the required revision and click Update. Click Yes to confirm your selection.
Unable to download to controller. Safety partnership has not been established.
Cancel this download process and attempt a new download.
Unable to download to controller. Incompatible safety signature cannot be deleted while the project is safety-locked.
Cancel the download. To download the project, you must safety-unlock the offline project, delete the safety signature, and download the project.
IMPORTANT:
The safety system requires revalidation.
Cannot download in a manner that preserves the safety signature. Controller’s firmware minor revision is not compatible with safety signature in offline project.
  • If the firmware minor revision is incompatible, to preserve the safety signature, update the firmware revision in the controller to exactly match the offline project. Then download the offline project.
  • To proceed with the download despite the safety signature incompatibility, click Download. The safety signature is deleted.
IMPORTANT:
The safety system requires revalidation.
Unable to download to controller. Controller is locked. Controller and offline project safety signatures do not match.
Choose Unlock. The Safety Unlock for Download dialog box appears. If the Delete Signature checkbox is selected and you choose Unlock, click Yes to confirm the deletion.
Downloading safety signature...
The safety signature is present in the offline project and is downloading.
Following a successful download, the safety-locked status and safety signature of the controller match the project that was downloaded. Safety data is initialized to the values that existed when the safety signature was created.
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