## Windows Services

Many of the product’s core components run as Windows Services. This allows your servers to continue monitoring your power management system when no users are logged on. In the event of a power outage, your system automatically resumes power monitoring when the power is restored. The table below summarizes the services and indicates whether the service is configured to start automatically or manually, by default.

Note

has many dependent services. For example, the , and cannot start and operate without it running.

Service Name | Description | Manual/Automatic
--- | --- | ---
ApplicationModules AlarmServiceHost | Hosts alarm services used by the Web Applications component. | Manual
| Hosts common web services used by the Web Applications component. | Automatic
| Hosts web services that provide low-level access to system data for the Web Applications component | Automatic
| Hosts web services that provide data processing for the Web Applications component. | Automatic
| Checks the computer’s communications ports continuously for high priority events occurring at remote modem sites. When this happens, initiates a communications connection to the remote modem site. | Manual
| Locates local and remote product components. Although this service is configured as Manual, the service starts when a client attempts to connect to it. | Manual
| Determines the connection status of sites and devices in the system, and handles allocation of resources such as modems. This service manages the state of site and device connectivity for the system. In order to establish the most appropriate state for the system, each connection and disconnection request is evaluated against the overall state of the system and availability of communications channels. | Manual
| Monitors system events for conditions specified in (see "" on page 1). | Automatic
| Provides historical data collection and storage for your power monitoring system. See "" on page 1. | Automatic
ION Managed Circuit Service | This service is used to create individual real-time and historical data sources for multi-circuit meters. | Automatic
| Routes all information between the software components, such as client workstations and the . The service dynamically detects changes to the network configuration, including the addition of new servers; it can also recognize new software nodes, such as , that are added to an existing server. | Automatic
| Manages and is responsible for supplying OPC data to client applications. Although this service is configured as Manual, the service starts when an OPC client attempts to connect to it. | Manual
| Translates data from the product's databases to PQDIF file format and manages scheduled PQDIF exports. | Manual
| Provides historical data retrieval for your power monitoring system. See "Linking a Data Log Viewer or Event Log Viewer" on page 1 for more information regarding this service. | Automatic
| Manages and provides access to real time data from the power management system. | Automatic
| This service manages report subscriptions in the application. (This service is only available if you are using a supported edition of SQL Server Standard or Enterprise with the software product.) | Automatic (Delayed Start)
| Manages communication links to and from the product. is responsible for handling packet communications to system devices and controlling direct device communications. The service reacts to changes in network configuration: for example, often changes to certain channels, configuration parameters, ports, or device parameters can interrupt a connection. You can add, delete, or change channels, configuration parameters, ports, and devices without restarting the , , and . | Automatic
ION Software Alarm Service WinPM.Net Software Alarm Service | Performs alarm evaluation based on real-time data from the power monitoring system. | Automatic
ION Software Modbus Gateway Service | Enables software data services via ModbusTCP/IP. | Manual
| Provides coordinated data collection, data processing, and control functions for groups of meters. For more information on the and its functionality, see " Setup" on page 1. | Automatic
| Manages subscriptions to XML data for user diagrams. This service is used only by the application. When you open a user diagram in a web browser, the creates a subscription and delivers the real-time data in XML format. | Automatic
| Stores XML data subscriptions for the power monitoring devices on the network. This service is used only by the application. | Automatic