PowerActiveImportDeltaForEagerMeterValueSample

PowerActiveImportDeltaForEagerMeterValueSample controls when the charger sends extra (eager) MeterValues based on changes in imported active power (P).

Think of it like a speedometer for power (in watts):

• The charger normally sends power readings every X seconds (MeterValueSampleInterval).
• This key sets how big a power change must happen before the charger sends an extra reading immediately, instead of waiting.

Behaviour

• If the power change is greater than this value → send an extra MeterValues now.
• If the power change is smaller → wait for the normal interval.

Key details

• Name: PowerActiveImportDeltaForEagerMeterValueSample
• Type: number
• Unit: watts (W)
• 0 → no extra readings, only the normal periodic ones
• Smaller value → more frequent extra samples (more detail, more traffic)
• Larger value → extra samples only on big changes (less detail, less traffic)

Example 1

• MeterValueSampleInterval = 3600 (once per hour)
• Last power value: 300 W
• PowerActiveImportDeltaForEagerMeterValueSample = 200

Then:

• If power goes above 500 W or below 100 W, the charger:
  • Immediately sends a new MeterValues reading
  • Restarts the one‑hour timer

Example 2

• PowerActiveImportDeltaForEagerMeterValueSample = 500

Then:

• The charger sends an extra MeterValues whenever imported active power changes by more than 500 W from the last reported sample.

How to update the key (ChangeConfiguration)

Send a ChangeConfiguration CALL from the CSMS to the Charging Station:

[
  2,
  "12345678-90ab-cdef-1234-567890abcdef",
  "ChangeConfiguration",
  {
    "key": "PowerActiveImportDeltaForEagerMeterValueSample",
    "value": "500"
  }
]