diff options
author | Costa Tsaousis <costa@tsaousis.gr> | 2018-10-15 23:16:42 +0300 |
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committer | GitHub <noreply@github.com> | 2018-10-15 23:16:42 +0300 |
commit | 8fbf817ef83b3524b15f908251909d9d6feb5532 (patch) | |
tree | 4c2d417b7392c907bbdbe355b8db361bd3741a02 /collectors/node.d.plugin | |
parent | 1ad4f1bcfc691120102b57dbd426de0870abd76f (diff) |
modularized all source code (#4391)
* modularized all external plugins
* added README.md in plugins
* fixed title
* fixed typo
* relative link to external plugins
* external plugins configuration README
* added plugins link
* remove plugins link
* plugin names are links
* added links to external plugins
* removed unecessary spacing
* list to table
* added language
* fixed typo
* list to table on internal plugins
* added more documentation to internal plugins
* moved python, node, and bash code and configs into the external plugins
* added statsd README
* fix bug with corrupting config.h every 2nd compilation
* moved all config files together with their code
* more documentation
* diskspace info
* fixed broken links in apps.plugin
* added backends docs
* updated plugins readme
* move nc-backend.sh to backends
* created daemon directory
* moved all code outside src/
* fixed readme identation
* renamed plugins.d.plugin to plugins.d
* updated readme
* removed linux- from linux plugins
* updated readme
* updated readme
* updated readme
* updated readme
* updated readme
* updated readme
* fixed README.md links
* fixed netdata tree links
* updated codacy, codeclimate and lgtm excluded paths
* update CMakeLists.txt
* updated automake options at top directory
* libnetdata slit into directories
* updated READMEs
* updated READMEs
* updated ARL docs
* updated ARL docs
* moved /plugins to /collectors
* moved all external plugins outside plugins.d
* updated codacy, codeclimate, lgtm
* updated README
* updated url
* updated readme
* updated readme
* updated readme
* updated readme
* moved api and web into webserver
* web/api web/gui web/server
* modularized webserver
* removed web/gui/version.txt
Diffstat (limited to 'collectors/node.d.plugin')
24 files changed, 7405 insertions, 0 deletions
diff --git a/collectors/node.d.plugin/Makefile.am b/collectors/node.d.plugin/Makefile.am new file mode 100644 index 0000000000..67d0e1d855 --- /dev/null +++ b/collectors/node.d.plugin/Makefile.am @@ -0,0 +1,57 @@ +# SPDX-License-Identifier: GPL-3.0-or-later + +MAINTAINERCLEANFILES = $(srcdir)/Makefile.in +CLEANFILES = \ + node.d.plugin \ + $(NULL) + +include $(top_srcdir)/build/subst.inc +SUFFIXES = .in + +dist_libconfig_DATA = \ + node.d.conf \ + $(NULL) + +dist_plugins_SCRIPTS = \ + node.d.plugin \ + $(NULL) + +dist_noinst_DATA = \ + node.d.plugin.in \ + README.md \ + named/README.md \ + fronius/README.md \ + sma_webbox/README.md \ + snmp/README.md \ + stiebeleltron/README.md \ + $(NULL) + +nodeconfigdir=$(libconfigdir)/node.d +dist_nodeconfig_DATA = \ + $(NULL) + +dist_node_DATA = \ + named/named.node.js \ + fronius/fronius.node.js \ + sma_webbox/sma_webbox.node.js \ + snmp/snmp.node.js \ + stiebeleltron/stiebeleltron.node.js \ + $(NULL) + +nodemodulesdir=$(nodedir)/node_modules +dist_nodemodules_DATA = \ + node_modules/netdata.js \ + node_modules/extend.js \ + node_modules/pixl-xml.js \ + node_modules/net-snmp.js \ + node_modules/asn1-ber.js \ + $(NULL) + +nodemoduleslibberdir=$(nodedir)/node_modules/lib/ber +dist_nodemoduleslibber_DATA = \ + node_modules/lib/ber/index.js \ + node_modules/lib/ber/errors.js \ + node_modules/lib/ber/reader.js \ + node_modules/lib/ber/types.js \ + node_modules/lib/ber/writer.js \ + $(NULL) diff --git a/collectors/node.d.plugin/README.md b/collectors/node.d.plugin/README.md new file mode 100644 index 0000000000..dd977017d9 --- /dev/null +++ b/collectors/node.d.plugin/README.md @@ -0,0 +1,218 @@ +# node.d.plugin + +`node.d.plugin` is a netdata external plugin. It is an **orchestrator** for data collection modules written in `node.js`. + +1. It runs as an independent process `ps fax` shows it +2. It is started and stopped automatically by netdata +3. It communicates with netdata via a unidirectional pipe (sending data to the netdata daemon) +4. Supports any number of data collection **modules** +5. Allows each **module** to have one or more data collection **jobs** +6. Each **job** is collecting one or more metrics from a single data source + +# Motivation + +Node.js is perfect for asynchronous operations. It is very fast and quite common (actually the whole web is based on it). +Since data collection is not a CPU intensive task, node.js is an ideal solution for it. + +`node.d.plugin` is a netdata plugin that provides an abstraction layer to allow easy and quick development of data +collectors in node.js. It also manages all its data collectors (placed in `/usr/libexec/netdata/node.d`) using a single +instance of node, thus lowering the memory footprint of data collection. + +Of course, there can be independent plugins written in node.js (placed in `/usr/libexec/netdata/plugins`). +These will have to be developed using the guidelines of **[External Plugins](../plugins.d/)**. + +To run `node.js` plugins you need to have `node` installed in your system. + +In some older systems, the package named `node` is not node.js. It is a terminal emulation program called `ax25-node`. +In this case the node.js package may be referred as `nodejs`. Once you install `nodejs`, we suggest to link +`/usr/bin/nodejs` to `/usr/bin/node`, so that typing `node` in your terminal, opens node.js. +For more information check the **[[Installation]]** guide. + +## configuring `node.d.plugin` + +`node.d.plugin` can work even without any configuration. Its default configuration file is +[/etc/netdata/node.d.conf](node.d.conf) (to edit it on your system run `/etc/netdata/edit-config node.d.conf`). + +## configuring `node.d.plugin` modules + +`node.d.plugin` modules accept configuration in `JSON` format. + +Unfortunately, `JSON` files do not accept comments. So, the best way to describe them is to have markdown text files +with instructions. + +`JSON` has a very strict formatting. If you get errors from netdata at `/var/log/netdata/error.log` that a certain +configuration file cannot be loaded, we suggest to verify it at [http://jsonlint.com/](http://jsonlint.com/). + +The files in this directory, provide usable examples for configuring each `node.d.plugin` module. + + +## debugging modules written for node.d.plugin + +To test `node.d.plugin` modules, which are placed in `/usr/libexec/netdata/node.d`, you can run `node.d.plugin` by hand, +like this: + +```sh +# become user netdata +sudo su -s /bin/sh netdata + +# run the plugin in debug mode +/usr/libexec/netdata/plugins.d/node.d.plugin debug 1 X Y Z +``` + +`node.d.plugin` will run in `debug` mode (lots of debug info), with an update frequency of `1` second, evaluating only +the collector scripts `X` (i.e. `/usr/libexec/netdata/node.d/X.node.js`), `Y` and `Z`. +You can define zero or more modules. If none is defined, `node.d.plugin` will evaluate all modules available. + +Keep in mind that if your configs are not in `/etc/netdata`, you should do the following before running `node.d.plugin`: + +```sh +export NETDATA_USER_CONFIG_DIR="/path/to/etc/netdata" +``` + +--- + +## developing `node.d.plugin` modules + +Your data collection module should be split in 3 parts: + + - a function to fetch the data from its source. `node.d.plugin` already can fetch data from web sources, + so you don't need to do anything about it for http. + + - a function to process the fetched/manipulate the data fetched. This function will make a number of calls + to create charts and dimensions and pass the collected values to netdata. + This is the only function you need to write for collecting http JSON data. + + - a `configure` and an `update` function, which take care of your module configuration and data refresh + respectively. You can use the supplied ones. + +Your module will automatically be able to process any number of servers, with different settings (even different +data collection frequencies). You will write just the work needed for one and `node.d.plugin` will do the rest. +For each server you are going to fetch data from, you will have to create a `service` (more later). + +### writing the data collection module + +To provide a module called `mymodule`, you have create the file `/usr/libexec/netdata/node.d/mymodule.node.js`, with this structure: + +```js + +// the processor is needed only +// if you need a custom processor +// other than http +netdata.processors.myprocessor = { + name: 'myprocessor', + + process: function(service, callback) { + + /* do data collection here */ + + callback(data); + } +}; + +// this is the mymodule definition +var mymodule = { + processResponse: function(service, data) { + + /* send information to the netdata server here */ + + }, + + configure: function(config) { + var eligible_services = 0; + + if(typeof(config.servers) === 'undefined' || config.servers.length === 0) { + + /* + * create a service using internal defaults; + * this is used for auto-detecting the settings + * if possible + */ + + netdata.service({ + name: 'a name for this service', + update_every: this.update_every, + module: this, + processor: netdata.processors.myprocessor, + // any other information your processor needs + }).execute(this.processResponse); + + eligible_services++; + } + else { + + /* + * create a service for each server in the + * configuration file + */ + + var len = config.servers.length; + while(len--) { + var server = config.servers[len]; + + netdata.service({ + name: server.name, + update_every: server.update_every, + module: this, + processor: netdata.processors.myprocessor, + // any other information your processor needs + }).execute(this.processResponse); + + eligible_services++; + } + } + + return eligible_services; + }, + + update: function(service, callback) { + + /* + * this function is called when each service + * created by the configure function, needs to + * collect updated values. + * + * You normally will not need to change it. + */ + + service.execute(function(service, data) { + mymodule.processResponse(service, data); + callback(); + }); + }, +}; + +module.exports = mymodule; +``` + +#### configure(config) + +`configure(config)` is called just once, when `node.d.plugin` starts. +The config file will contain the contents of `/etc/netdata/node.d/mymodule.conf`. +This file should have the following format: + +```js +{ + "enable_autodetect": false, + "update_every": 5, + "servers": [ { /* server 1 */ }, { /* server 2 */ } ] +} +``` + +If the config file `/etc/netdata/node.d/mymodule.conf` does not give a `enable_autodetect` or `update_every`, these +will be added by `node.d.plugin`. So you module will always have them. + +The configuration file `/etc/netdata/node.d/mymodule.conf` may contain whatever else is needed for `mymodule`. + +#### processResponse(data) + +`data` may be `null` or whatever the processor specified in the `service` returned. + +The `service` object defines a set of functions to allow you send information to the netdata core about: + +1. Charts and dimension definitions +2. Updated values, from the collected values + +--- + +*FIXME: document an operational node.d.plugin data collector - the best example is the +[snmp collector](snmp/snmp.node.js)* diff --git a/collectors/node.d.plugin/fronius/README.md b/collectors/node.d.plugin/fronius/README.md new file mode 100644 index 0000000000..dd28469905 --- /dev/null +++ b/collectors/node.d.plugin/fronius/README.md @@ -0,0 +1,120 @@ +# fronius + +This module collects metrics from the configured solar power installation from Fronius Symo. + +**Requirements** + * Configuration file `fronius.conf` in the node.d netdata config dir (default: `/etc/netdata/node.d/fronius.conf`) + * Fronius Symo with network access (http) + +It produces per server: + +1. **Power** + * Current power input from the grid (positive values), output to the grid (negative values), in W + * Current power input from the solar panels, in W + * Current power stored in the accumulator (if present), in W (in theory, untested) + +2. **Consumption** + * Local consumption in W + +3. **Autonomy** + * Relative autonomy in %. 100 % autonomy means that the solar panels are delivering more power than it is needed by local consumption. + * Relative self consumption in %. The lower the better + +4. **Energy** + * The energy produced during the current day, in kWh + * The energy produced during the current year, in kWh + +5. **Inverter** + * The current power output from the connected inverters, in W, one dimension per inverter. At least one is always present. + + +### configuration + +Sample: + +```json +{ + "enable_autodetect": false, + "update_every": 5, + "servers": [ + { + "name": "Symo", + "hostname": "symo.ip.or.dns", + "update_every": 5, + "api_path": "/solar_api/v1/GetPowerFlowRealtimeData.fcgi" + } + ] +} +``` + +If no configuration is given, the module will be disabled. Each `update_every` is optional, the default is `5`. + +--- + +[Fronius Symo 8.2](https://www.fronius.com/en/photovoltaics/products/all-products/inverters/fronius-symo/fronius-symo-8-2-3-m) + +The plugin has been tested with a single inverter, namely Fronius Symo 8.2-3-M: + +- Datalogger version: 240.162630 +- Software version: 3.7.4-6 +- Hardware version: 2.4D + +Other products and versions may work, but without any guarantees. + +Example netdata configuration for node.d/fronius.conf. Copy this section to fronius.conf and change name/ip. +The module supports any number of servers. Sometimes there is a lag when collecting every 3 seconds, so 5 should be okay too. You can modify this per server. +```json +{ + "enable_autodetect": false, + "update_every": 5, + "servers": [ + { + "name": "solar", + "hostname": "symo.ip.or.dns", + "update_every": 5, + "api_path": "/solar_api/v1/GetPowerFlowRealtimeData.fcgi" + } + ] +} +``` + +The output of /solar_api/v1/GetPowerFlowRealtimeData.fcgi looks like this: +```json +{ + "Head" : { + "RequestArguments" : {}, + "Status" : { + "Code" : 0, + "Reason" : "", + "UserMessage" : "" + }, + "Timestamp" : "2017-07-05T12:35:12+02:00" + }, + "Body" : { + "Data" : { + "Site" : { + "Mode" : "meter", + "P_Grid" : -6834.549847, + "P_Load" : -1271.450153, + "P_Akku" : null, + "P_PV" : 8106, + "rel_SelfConsumption" : 15.685297, + "rel_Autonomy" : 100, + "E_Day" : 35020, + "E_Year" : 5826076, + "E_Total" : 14788870, + "Meter_Location" : "grid" + }, + "Inverters" : { + "1" : { + "DT" : 123, + "P" : 8106, + "E_Day" : 35020, + "E_Year" : 5826076, + "E_Total" : 14788870 + } + } + } + } +} +``` diff --git a/collectors/node.d.plugin/fronius/fronius.node.js b/collectors/node.d.plugin/fronius/fronius.node.js new file mode 100644 index 0000000000..436f3a325f --- /dev/null +++ b/collectors/node.d.plugin/fronius/fronius.node.js @@ -0,0 +1,400 @@ +"use strict"; +// SPDX-License-Identifier: GPL-3.0-or-later + +// This program will connect to one or more Fronius Symo Inverters. +// to get the Solar Power Generated (current, today). + +// example configuration in netdata/conf.d/node.d/fronius.conf.md + +require("url"); +require("http"); +var netdata = require("netdata"); + +netdata.debug("loaded " + __filename + " plugin"); + +var fronius = { + name: "Fronius", + enable_autodetect: false, + update_every: 5, + base_priority: 60000, + charts: {}, + + powerGridId: "p_grid", + powerPvId: "p_pv", + powerAccuId: "p_akku", // not my typo! Using the ID from the AP + consumptionLoadId: "p_load", + autonomyId: "rel_autonomy", + consumptionSelfId: "rel_selfconsumption", + solarConsumptionId: "solar_consumption", + energyTodayId: "e_day", + energyYearId: "e_year", + + createBasicDimension: function (id, name, divisor) { + return { + id: id, // the unique id of the dimension + name: name, // the name of the dimension + algorithm: netdata.chartAlgorithms.absolute,// the id of the netdata algorithm + multiplier: 1, // the multiplier + divisor: divisor, // the divisor + hidden: false // is hidden (boolean) + }; + }, + + // Gets the site power chart. Will be created if not existing. + getSitePowerChart: function (service, suffix) { + var id = this.getChartId(service, suffix); + var chart = fronius.charts[id]; + if (fronius.isDefined(chart)) return chart; + + var dim = {}; + dim[fronius.powerGridId] = this.createBasicDimension(fronius.powerGridId, "grid", 1); + dim[fronius.powerPvId] = this.createBasicDimension(fronius.powerPvId, "photovoltaics", 1); + dim[fronius.powerAccuId] = this.createBasicDimension(fronius.powerAccuId, "accumulator", 1); + + chart = { + id: id, // the unique id of the chart + name: "", // the unique name of the chart + title: service.name + " Current Site Power", // the title of the chart + units: "W", // the units of the chart dimensions + family: "power", // the family of the chart + context: "fronius.power", // the context of the chart + type: netdata.chartTypes.area, // the type of the chart + priority: fronius.base_priority + 1, // the priority relative to others in the same family + update_every: service.update_every, // the expected update frequency of the chart + dimensions: dim + }; + chart = service.chart(id, chart); + fronius.charts[id] = chart; + + return chart; + }, + + // Gets the site consumption chart. Will be created if not existing. + getSiteConsumptionChart: function (service, suffix) { + var id = this.getChartId(service, suffix); + var chart = fronius.charts[id]; + if (fronius.isDefined(chart)) return chart; + var dim = {}; + dim[fronius.consumptionLoadId] = this.createBasicDimension(fronius.consumptionLoadId, "load", 1); + + chart = { + id: id, // the unique id of the chart + name: "", // the unique name of the chart + title: service.name + " Current Load", // the title of the chart + units: "W", // the units of the chart dimensions + family: "consumption", // the family of the chart + context: "fronius.consumption", // the context of the chart + type: netdata.chartTypes.area, // the type of the chart + priority: fronius.base_priority + 2, // the priority relative to others in the same family + update_every: service.update_every, // the expected update frequency of the chart + dimensions: dim + }; + chart = service.chart(id, chart); + fronius.charts[id] = chart; + + return chart; + }, + + // Gets the site consumption chart. Will be created if not existing. + getSiteAutonomyChart: function (service, suffix) { + var id = this.getChartId(service, suffix); + var chart = fronius.charts[id]; + if (fronius.isDefined(chart)) return chart; + var dim = {}; + dim[fronius.autonomyId] = this.createBasicDimension(fronius.autonomyId, "autonomy", 1); + dim[fronius.consumptionSelfId] = this.createBasicDimension(fronius.consumptionSelfId, "self_consumption", 1); + dim[fronius.solarConsumptionId] = this.createBasicDimension(fronius.solarConsumptionId, "solar_consumption", 1); + + chart = { + id: id, // the unique id of the chart + name: "", // the unique name of the chart + title: service.name + " Current Autonomy", // the title of the chart + units: "%", // the units of the chart dimensions + family: "autonomy", // the family of the chart + context: "fronius.autonomy", // the context of the chart + type: netdata.chartTypes.area, // the type of the chart + priority: fronius.base_priority + 3, // the priority relative to others in the same family + update_every: service.update_every, // the expected update frequency of the chart + dimensions: dim + }; + chart = service.chart(id, chart); + fronius.charts[id] = chart; + + return chart; + }, + + // Gets the site energy chart for today. Will be created if not existing. + getSiteEnergyTodayChart: function (service, suffix) { + var chartId = this.getChartId(service, suffix); + var chart = fronius.charts[chartId]; + if (fronius.isDefined(chart)) return chart; + var dim = {}; + dim[fronius.energyTodayId] = this.createBasicDimension(fronius.energyTodayId, "today", 1000); + chart = { + id: chartId, // the unique id of the chart + name: "", // the unique name of the chart + title: service.name + " Energy production for today",// the title of the chart + units: "kWh", // the units of the chart dimensions + family: "energy", // the family of the chart + context: "fronius.energy.today", // the context of the chart + type: netdata.chartTypes.area, // the type of the chart + priority: fronius.base_priority + 4, // the priority relative to others in the same family + update_every: service.update_every, // the expected update frequency of the chart + dimensions: dim + }; + chart = service.chart(chartId, chart); + fronius.charts[chartId] = chart; + + return chart; + }, + + // Gets the site energy chart for today. Will be created if not existing. + getSiteEnergyYearChart: function (service, suffix) { + var chartId = this.getChartId(service, suffix); + var chart = fronius.charts[chartId]; + if (fronius.isDefined(chart)) return chart; + var dim = {}; + dim[fronius.energyYearId] = this.createBasicDimension(fronius.energyYearId, "year", 1000); + chart = { + id: chartId, // the unique id of the chart + name: "", // the unique name of the chart + title: service.name + " Energy production for this year",// the title of the chart + units: "kWh", // the units of the chart dimensions + family: "energy", // the family of the chart + context: "fronius.energy.year", // the context of the chart + type: netdata.chartTypes.area, // the type of the chart + priority: fronius.base_priority + 5, // the priority relative to others in the same family + update_every: service.update_every, // the expected update frequency of the chart + dimensions: dim + }; + chart = service.chart(chartId, chart); + fronius.charts[chartId] = chart; + + return chart; + }, + + // Gets the inverter power chart. Will be created if not existing. + // Needs the array of inverters in order to create a chart with all inverters as dimensions + getInverterPowerChart: function (service, suffix, inverters) { + var chartId = this.getChartId(service, suffix); + var chart = fronius.charts[chartId]; + if (fronius.isDefined(chart)) return chart; + + var dim = {}; + for (var key in inverters) { + if (inverters.hasOwnProperty(key)) { + var name = key; + if (!isNaN(key)) name = "inverter_" + key; + dim[key] = this.createBasicDimension("inverter_" + key, name, 1); + } + } + + chart = { + id: chartId, // the unique id of the chart + name: "", // the unique name of the chart + title: service.name + " Current Inverter Output",// the title of the chart + units: "W", // the units of the chart dimensions + family: "inverters", // the family of the chart + context: "fronius.inverter.output", // the context of the chart + type: netdata.chartTypes.stacked, // the type of the chart + priority: fronius.base_priority + 6, // the priority relative to others in the same family + update_every: service.update_every, // the expected update frequency of the chart + dimensions: dim + }; + chart = service.chart(chartId, chart); + fronius.charts[chartId] = chart; + + return chart; + }, + + processResponse: function (service, content) { + var json = fronius.convertToJson(content); + if (json === null) return; + + // add the service + service.commit(); + + var chartDefinitions = fronius.parseCharts(service, json); + var chartCount = chartDefinitions.length; + while (chartCount--) { + var chartObj = chartDefinitions[chartCount]; + service.begin(chartObj.chart); + var dimCount = chartObj.dimensions.length; + while (dimCount--) { + var dim = chartObj.dimensions[dimCount]; + service.set(dim.name, dim.value); + } + service.end(); + } + }, + + parseCharts: function (service, json) { + var site = json.Body.Data.Site; + return [ + this.parsePowerChart(service, site), + this.parseConsumptionChart(service, site), + this.parseAutonomyChart(service, site), + this.parseEnergyTodayChart(service, site), + this.parseEnergyYearChart(service, site), + this.parseInverterChart(service, json.Body.Data.Inverters) + ]; + }, + + parsePowerChart: function (service, site) { + return this.getChart(this.getSitePowerChart(service, "power"), + [ + this.getDimension(this.powerGridId, Math.round(site.P_Grid)), + this.getDimension(this.powerPvId, Math.round(Math.max(site.P_PV, 0))), + this.getDimension(this.powerAccuId, Math.round(site.P_Akku)) + ] + ); + }, + + parseConsumptionChart: function (service, site) { + return this.getChart(this.getSiteConsumptionChart(service, "consumption"), + [this.getDimension(this.consumptionLoadId, Math.round(Math.abs(site.P_Load)))] + ); + }, + + parseAutonomyChart: function (service, site) { + var selfConsumption = site.rel_SelfConsumption; + var solarConsumption = 0; + var load = Math.abs(site.P_Load); + var power = Math.max(site.P_PV, 0); + if (power <= 0) solarConsumption = 0; + else if (load >= power) solarConsumption = 100; + else solarConsumption = 100 / power * load; + return this.getChart(this.getSiteAutonomyChart(service, "autonomy"), + [ + this.getDimension(this.autonomyId, Math.round(site.rel_Autonomy)), + this.getDimension(this.consumptionSelfId, Math.round(selfConsumption === null ? 100 : selfConsumption)), + this.getDimension(this.solarConsumptionId, Math.round(solarConsumption)) + ] + ); + }, + + parseEnergyTodayChart: function (service, site) { + return this.getChart(this.getSiteEnergyTodayChart(service, "energy.today"), + [this.getDimension(this.energyTodayId, Math.round(Math.max(site.E_Day, 0)))] + ); + }, + + parseEnergyYearChart: function (service, site) { + return this.getChart(this.getSiteEnergyYearChart(service, "energy.year"), + [this.getDimension(this.energyYearId, Math.round(Math.max(site.E_Year, 0)))] + ); + }, + + parseInverterChart: function (service, inverters) { + var dimensions = []; + for (var key in inverters) { + if (inverters.hasOwnProperty(key)) { + dimensions.push(this.getDimension(key, Math.round(inverters[key].P))); + } + } + return this.getChart(this.getInverterPowerChart(service, "inverters.output", inverters), dimensions); |