generated: '2026-09-02'
method: derived
source: openapi/ametek-powervar-isite-pro-openapi.yml
provider: AMETEK
providerId: ametek
description: >-
  Entity-relationship graph derived from the schemas of the AMETEK Powervar iSite PRO REST API.
  A small, flat model: the adapter identifies itself, and reports the state and alarms of the one
  UPS it is fitted to. There are no resource ids, no cross-resource references and no id-prefix
  scheme — every response is a live read of one device.
entities:
  - name: Adapter
    schema: WhoAreYou
    description: The iSite PRO network management card itself.
    identifier: serial
    fields: [objType, model, serial, manufacturer, time, firmware, hostname]
    operations: [getWhoAreYou]
  - name: EthInterface
    schema: EthInterface
    description: One Ethernet interface on the adapter.
    identifier: mac
    fields: [mac, ifname, dns, addr, dhcp, mask, gw]
  - name: HttpdState
    schema: HttpdState
    description: State of the adapter's embedded HTTP server.
    fields: [enabled, ssl, status, port]
  - name: UpsStatus
    schema: UpsStatus
    description: Live electrical and battery state of the attached UPS. A snapshot, not a stored record.
    identifier: SerialNumber
    operations: [getUpsStatus]
  - name: Alarm
    schema: Alarm
    description: One currently-active UPS condition, drawn from a fixed 38-value catalogue.
    identifier: Name
    fields: [Timestamp, Name, Severity, Description]
    operations: [getUpsAlarms]
relationships:
  - from: Adapter
    to: EthInterface
    type: has_many
    via: ethInterfaces
    evidence: WhoAreYou.ethInterfaces is an array of EthInterface.
  - from: Adapter
    to: HttpdState
    type: has_one
    via: httpd
    evidence: WhoAreYou.httpd is a single HttpdState object.
  - from: Adapter
    to: UpsStatus
    type: has_one
    via: implicit
    confidence: medium
    evidence: >-
      Implicit, not declared by a $ref or an id field. One adapter is fitted to one UPS, and
      /UpsStatus takes no parameters, so the status returned is always that of the UPS behind the
      adapter being called. UpsStatus.SerialNumber is the UPS serial and is distinct from
      WhoAreYou.serial, which is the ADAPTER serial — the two must not be conflated.
  - from: UpsStatus
    to: Alarm
    type: has_many
    via: implicit
    confidence: medium
    evidence: >-
      Implicit. /UpsAlarms returns the alarms active on the same UPS /UpsStatus describes; there
      is no foreign key linking them.
id_scheme:
  prefixes: []
  note: >-
    No id prefixes. Adapter serial is of the form 3000L01-2130001 and UPS serial of the form
    5006003R-1830016 in the published examples — model-code-and-batch, not API identifiers. There
    is no resource id an agent can pass back into any operation.
enumerations:
  - name: AlarmName
    values: 38
    location: openapi/ametek-powervar-isite-pro-openapi.yml#/components/schemas/AlarmName
  - name: Severity
    values: [1, 2, 3]
    meaning: 3 = fault / service required, 2 = warning, 1 = informational or state notice