Checklist

What I need for an analysis

Not everything is needed for every case. The more of it is available, the faster I get to the root cause.

Printable checklist

Device and firmware

  • Manufacturer, model and hardware revision
  • Firmware version when the failure occurred, earlier versions and update history
  • Serial numbers or internal IDs of affected units – pseudonymised if necessary
  • Number of affected units, roughly in relation to the installed base

Connectivity

  • Connectivity type: LAN, Wi-Fi or cellular
  • For cellular: modem or module and its firmware, network, type of SIM card
  • Signal quality, if logged
  • Times of connection drops, ideally with time zone

Backend and OCPP

  • Backend (CSMS): name or type, and version if known
  • OCPP version and security profile
  • OCPP traces covering the failure period, ideally from both charger and backend
  • Relevant configuration keys, for example HeartbeatInterval, WebSocketPingInterval, MeterValueSampleInterval

Failure pattern

  • What happens, and what should happen?
  • Since when, how often, on which units?
  • Any correlation with updates, time of day, locations or load situations?
  • Error codes and status messages of the charger
  • Actions taken so far and their results

Logs and returns

  • Device logs covering the failure period, with some lead time
  • Clock synchronisation of the units (NTP) and the time zone used
  • Test reports of returned units

Calibration law and meter values (if affected)

  • Signed meter values, for example OCMF records
  • The corresponding public keys and when they changed
  • Results of verification with the transparency software

Confidentiality and data protection

  • NDA in place; DPA if personal data is included
  • Personal data removed or replaced: names, email addresses, charging card identifiers (for example RFID UIDs or idTags), contract and vehicle identifiers
  • Raw data only via the case-specific upload link

Via the pilot form I accept pseudonymised data only. Raw data only after NDA/DPA via a case-specific upload link.

Send me your toughest open case.

Describe the failure pattern and the systems involved. You will receive an acknowledgement with follow-up questions.