Component Instances
When the PLCnext runtime starts, the following happens:
- One or more processes are started.
- The libraries containing PLCnext component definitions are loaded into the specified process(es).
- Component instances are created in the specified processes.
The configuration information in this section appears in the following files:
/etc/plcnext/device/Libraries.acf.config/etc/plcnext/device/MainProcess.acf.config/etc/plcnext/device/ExternalIoProcess.acf.config/etc/plcnext/device/AXCF2152.acf.config
Runtime Processes
Most component instance are created in the main PLCnext runtime process, which is called MainProcess. In the AXC F 2152, one additional process is created, in which I/O component instances related to Axioline, Ethernet/IP and Interbus are created.
| Process name | Local TCP port |
|---|---|
| MainProcess | 41121 |
| ExternalIoProcess | 41123 |
| LocalIoProcess1 | 41124 |
1 Only on AXC devices.
Since multiple Interbus and Profinet hardware interfaces are possible on an AXC F 2152 device, these additional processes allow the corresponding I/O networks to be dynamically assigned to the the correct hardware interface.
Component Libraries
The following table show the alias given to each component library by the PLCnext runtime.
Libraries can be loaded conditionally, based on the value of a boolean environment variable. If no condition is specified, the library is always loaded.
| Filename (libArp.*.so) | Alias (Arp.*.Library) | Condition |
|---|---|---|
| System. | System. | |
| Um | Um | |
| RscGateway | RscGateway | |
| Commons.Services | Commons.Services | |
| Security.Services | Security.Services | |
| Fwu | Fwu | |
| Watchdog | SystemWatchdog | ARP_COMPONENT_SYSTEM_WATCHDOG |
| SysWatchdog | SysWatchdog | |
| Hardware. | Hardware. | |
| Nim | Nim | |
| IdentificationData | IdentificationData | |
| FanControl | FanControl | |
| Fpga | Fpga | |
| OsControl | OsControl | |
| RealTimeClock | RealTimeClock | |
| ResourceMonitor | ResourceMonitor | |
| DeviceHmi | DeviceHmi | |
| Sensors | Sensors | |
| ExternalSDCard | ExternalSDCard | |
| ExternalPci | ExternalPci | ARP_COMPONENT_EXTERNAL_PCI |
| Device. | Device. | |
| HmiLed | HmiLed | |
| Interface | Interface | |
| Plc. | Plc. | |
| Eclr | Eclr | |
| Plm | Plm | |
| Esm | Esm | |
| Gds | Gds | |
| Domain | Domain | |
| Meta | Meta | |
| Fbm | Fbm | |
| Retain | Retain | ARP_COMPONENT_RETAIN |
| Services. | Services. | |
| Fwm | Fwm | |
| Wbm | Wbm | |
| Ehmi | Ehmi | |
| OpcUAServer | OpcUAServer | |
| Alarms | Alarms | |
| ProfiCloud | ProfiCloud | ARP_COMPONENT_PROFICLOUD |
| ProfiCloudV3 | ProfiCloudV3 | ARP_COMPONENT_PROFICLOUD_V3 |
| NotificationLogger | NotificationLogger | |
| TraceController | TraceController | |
| NmUtilities | NmUtilities | |
| DataLogger | DataLogger | |
| AppManager | AppManager | ARP_COMPONENT_APPMANAGER |
| LinuxSyslog | LinuxSyslog | ARP_COMPONENT_LINUXSYSLOG |
| Wcm | Wcm | |
| Logging | Logging | |
| SpnsProxy | SpnsProxy | |
| Io. | Io. | |
| ProfinetStack | Pn | ARP_COMPONENT_PROFINET or ARP_COMPONENT_PNC or ARP_COMPONENT_PND |
| Axioline.so1 | Axl | ARP_COMPONENT_AXIOLINE |
| Interbus.so1 | IbM | ARP_COMPONENT_INTERBUS |
| EthernetIP.so1 | EthernetIP | ARP_COMPONENT_ETHERNETIP |
1 Only available on AXC devices.
Component Instances
Each component created by the PLCnext runtime:
- Is created in a specific process. If no process is specified, the component is created in the main PLCnext Runtime process ("MainProcess").
- Can optionally be passed settings information. In the table below, all settings information represent files relative to the directory
/etc/plcnext/device. - Can be created conditionally, based on the value of a boolean environment variable. If no condition is specified, the component instance is always created.
| Instance name (Arp.*) | Type (Arp::*) | Process | Settings information ( /etc/plcnext/device/* | Condition |
|---|---|---|---|---|
| System. | System:: | System/ | ||
| Commons.Services | Commons::Services::Component | |||
| Security.Services | Security::Services::Component | |||
| Watchdog.MainProcess | Watchdog::SystemWatchdogComponent | Watchdog/Watchdog.settings | ARP_COMPONENT_SYSTEM_WATCHDOG | |
| RscGateway | RscGateway::RscGatewayComponent | RscGateway/RscGateway.settings | ||
| Um | Um::UmComponent | Um/Um.settings | ||
| Fwu | Fwu::FwuComponent | |||
| Wcm | Wcm::WcmComponent | Wcm/Wcm.settings | ARP_COMPONENT_WCM | |
| Hardware. | Hardware:: | Hardware/ | ||
| IdentificationData | IdentificationData::IdentificationDataComponent | IdentificationData/IdentificationData.settings | ||
| FanControl | FanControl::FanControlComponent | FanControl/FanControl.settings | ||
| Fpga | Fpga::FpgaComponent | Fpga/Fpga.settings | ||
| OsControl | OsControl::OsControlComponent | OsControl/OsControl.settings | ||
| RealTimeClock | RealTimeClock::RealTimeClockComponent | RealTimeClock/RealTimeClock.settings | ||
| ResourceMonitor | ResourceMonitor::ResourceMonitorComponent | ResourceMonitor/ResourceMonitor.settings | ||
| DeviceHmi | DeviceHmi::DeviceHmiComponent | DeviceHmi/DeviceHmi.settings | ||
| Sensors | Sensors::SensorsComponent | Sensors/Sensors.settings | ||
| Nim | Nim::NimComponent | Nim/Nim.settings | ||
| NetloadLimiter | Nim::NetloadLimiterComponent | Nim/NetloadLimiter.settings | ARP_COMPONENT_NETLOAD_LIMITER | |
| ExternalSDCard | ExternalSDCard::ExternalSDCardComponent | ExternalSDCard/ExternalSDCard.settings | ||
| ExternalPci | ExternalPci::ExternalPciComponent | ExternalPci/ExternalPci.settings | ARP_COMPONENT_EXTERNAL_PCI | |
| Device. | Device:: | Device/ | ||
| HmiLed | HmiLed::HmiLedComponent | |||
| Interface | Interface::DiComponent | Interface/Di.settings | ||
| Plc. | Plc:: | Plc/ | ||
| Manager | Domain::PlcManagerComponent | |||
| Domain | Domain::PlcDomainComponent | Domain/PlcDomain.settings | ||
| MetaDomain | Meta::MetaDomainComponent | |||
| Meta | Meta::MetaComponent | Meta/Meta.settings | ||
| MetaController | Meta::MetaControllerComponent | |||
| Eclr | Eclr::EclrComponent | Eclr/Eclr.settings | ARP_COMPONENT_ECLR | |
| EclrServices | Eclr::EclrServicesComponent | ARP_COMPONENT_ECLR | ||
| Eclr.ArpDomain | Eclr::ArpDomainComponent | ARP_COMPONENT_ECLR | ||
| Plm | Plm::PlmComponent | Plm/Plm.settings | ||
| Esm | Esm::EsmComponent | Esm/Esm.settings | ||
| EsmController | Esm::EsmControllerComponent | |||
| Gds | Gds::GdsComponent | Gds/Gds.settings | ||
| Retain | Retain::RetainComponent | Retain/Retain.settings | ARP_COMPONENT_RETAIN | |
| Fbm | Fbm::FbmComponent | Fbm/Fbm.settings | ||
| DomainProxy.ExternalIoProcess | Domain::PlcDomainProxyComponent | ExternalIoProcess | ||
| DomainProxy.LocalIoProcess1 | Domain::PlcDomainProxyComponent | LocalIoProcess | ||
| Io. | Plc:: | Plc/ | ||
| FbIo.PnC | Fbm::FbIoComponent | FbIo.PnC/FbIo.settings | ARP_COMPONENT_PROFINET or ARP_COMPONENT_PNC | |
| FbIo.PnD | Fbm::FbIoComponent | FbIo.PnD/FbIo.settings | ARP_COMPONENT_PROFINET or ARP_COMPONENT_PND | |
| FbIo.AxlC1 | Fbm::FbIoComponent | FbIo.AxlC/FbIo.settings | ||
| FbIo.IbM1 | Fbm::FbIoComponent | FbIo.IbM/FbIo.settings | ||
| FbIo.EthernetIP1 | Fbm::FbIoComponent | FbIo.EthernetIP/FbIo.settings | ARP_COMPONENT_ETHERNETIP | |
| Io. | Io:: | Io/ | ||
| PnS | ProfinetStack::System::SystemComponent | ExternalIoProcess | PnS/PnS.settings | ARP_COMPONENT_PROFINET or ARP_COMPONENT_PNC or ARP_COMPONENT_PND |
| PnC | ProfinetStack::Controller::ControllerComponent | ExternalIoProcess | PnC/PnC.settings | ARP_COMPONENT_PNC |
| PnD | ProfinetStack::Device::DeviceComponent | ExternalIoProcess | PnD/PnD.settings | ARP_COMPONENT_PND |
| AxlC1 | Axioline::AxiolineComponent | AxlC/AxlC.settings | ARP_COMPONENT_AXIOLINE | |
| IbM1 | Interbus::InterbusComponent | LocalIoProcess | IbM/IbM.settings | ARP_COMPONENT_INTERBUS |
| EthernetIP1 | EthernetIP::EthernetIPComponent | ExternalIoProcess | EthernetIP/EthernetIP.settings | ARP_COMPONENT_ETHERNETIP |
| Services. | Services:: | Services/ | ||
| Alarms | Alarms::AlarmsComponent | |||
| Fwm | Fwm::FwmComponent | Fwm/Fwm.settings | ARP_COMPONENT_FWM | |
| Wbm | Wbm::WbmComponent | Wbm/Wbm.settings | ARP_COMPONENT_WBM | |
| Ehmi | Ehmi::EhmiComponent | Ehmi/ehmi.settings | ARP_COMPONENT_EHMI | |
| OpcUAServer | OpcUAServer::OpcUAServerComponent | OpcUA/opcua.settings | ARP_COMPONENT_OPC_UA | |
| ProfiCloud | ProfiCloud::ProfiCloudComponent | ProfiCloud/Proficloud.settings | ARP_COMPONENT_PROFICLOUD | |
| ProfiCloudV3 | ProfiCloudV3::ProfiCloudV3Component | ProfiCloudV3/ProfiCloudV3.settings | ARP_COMPONENT_PROFICLOUD_V3 | |
| NotificationLogger | NotificationLogger::NotificationLoggerComponent | NotificationLogger/NotificationLogger.settings | ||
| TraceController | TraceController::TraceControllerComponent | TraceController/TraceController.settings | ARP_COMPONENT_TRACECONTROLLER | |
| NmUtilities.NmPlcStateListener | NmUtilities::NmPlcStateListener::NmPlcStateListenerComponent | |||
| DataLogger | DataLogger::DataLoggerComponent | DataLogger/dataLogger.settings | ARP_COMPONENT_DATALOGGER | |
| AppManager | AppManager::AppManagerComponent | AppManager/AppManager.settings | ARP_COMPONENT_APPMANAGER | |
| LinuxSyslog | LinuxSyslog::LinuxSyslogComponent | LinuxSyslog/LinuxSyslog.settings | ARP_COMPONENT_LINUXSYSLOG | |
| Logging | Logging::LoggingComponent | ARP_COMPONENT_LOGGING | ||
| LogManager | Logging::LogManagerComponent | ARP_COMPONENT_LOGMANAGER | ||
| LogProvider | Logging::LogProviderComponent | ARP_COMPONENT_LOGMANAGER | ||
| SpnsProxy | SpnsProxy::SpnsProxyComponent | SpnsProxy/spnsproxy.settings | ARP_COMPONENT_SPNSPROXY |
1 Only on AXC devices.