... | ... | @@ -2,8 +2,6 @@ The following diagram shows the power limit module (ic-pwlm) that reuses the dat |
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A power limit (`ic-pwlm:PowerLimit`) is defined as the maximum value for power consumption and/or production that must not be exceeded by e.g. a (group of) device(s), a building, or also a district. The value of a power limit is expressed using a `ic-data:DataPoint`. Optionally, the limit may come with a time period of validity based on duration (`time:Duration`). This is e.g. used for grid congestion management. Additional constraints may apply, such as that premises may be subject to a contractual limitation to power consumed and/or produced. Moreover, a device may have nominal power consumption and/or production values (`ic-pwlm:NominalPowerLimit`) that are defined by the manufacturer and must not be exceeded, so that the power limit must stay within these constraints. A device must acknowledge (ACK) a received power limit. A power limit is associated with a state (`ic-pwlm:PowerLimitState`), meaning that a power limit may be toggled active or inactive.
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In case the communication between a device and the energy manager is interrupted, fail-safe values apply (`ic-pwlm:FailsafePowerLimit`) and the device enters fail-safe state until the communication is re-established.
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