UnpublishFirmware

FirmwareManagement CSMS->CS OCPP 2.0.1

Sent by the CSMS to a Local Controller to stop serving a previously published firmware file.

Quick Reference

Required Fields

checksum string(32)

MD5 checksum of the firmware file to stop serving

Example Payload

{
  "checksum": "d41d8cd98f00b204e9800998ecf8427e"
}

Example Full Frame

[
  2,
  "msg-001",
  "UnpublishFirmware",
  {
    "checksum": "d41d8cd98f00b204e9800998ecf8427e"
  }
]

Format: [MessageType, MessageId, Action, Payload]

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Overview

UnpublishFirmware instructs the Local Controller to stop serving a firmware file, freeing up storage and preventing stations from downloading an outdated version.

Expected Response

status: DownloadOngoing (cannot unpublish yet), NoFirmware (not found), or Unpublished

Testing Tips

Verify Unpublished when the firmware was previously published
Test while a download is in progress and verify DownloadOngoing

Common Errors

`GenericError`

Cause: checksum does not match any published firmware

Solution: Charging Station responds with NoFirmware status if the checksum doesn't match any published file