Re: Failed to add Position Sensor to channel!

On Monday 20 March 2006 11:10, H.S. Randhawa wrote:
> I download the sample program axis control and run it. While observing
> output, i found that the kernel is unable to add position sensor to
> channel. I am mailing here  some part of that sample program and the output
> of that sample program.

Which version of Orocos are you using ? It seems the output is of version 
0.20.1 ?

Peter

>
> Program portion:
>         // Add the axis to the Sensor:
>         if (!axis_sens.addAxis("Axis1", ax1) )
>             cerr <<"Failed to add Axis1 to sensor!"<<endl;
>         // Add the axis to the Effector:
>         if (!axis_eff.addAxis("Axis1", ax1) )
>             cerr <<"Failed to add Axis1 to sensor!"<<endl;
>
>         // Sensor: Also show the Position sensors in the ChannelValues :
>         if (!axis_sens.addSensorOnChannel("Axis1", "Position", 0) )
>             cerr <<"Failed to add Position Sensor to channel!"<<endl;
>         // Effector: Read the drive value from channel zero :
>         if (!axis_eff.addAxisOnChannel("Axis1",  0) )
>             cerr <<"Failed to read Axis drive value from Channel !"<<endl;
>
> Output:
> [root@manipulator axis_control]# ./axiskernel
> 0.161 [Info] ./axiskernel manually raises LogLevel to 'Info' (5). See also
> file 'orocos.log'.
> 0.162 [Info] Trying to load Component DefaultController : success !
> 0.165 [Info] Trying to load Component DefaultGenerator : success !
> 0.165 [Info] Trying to load Component DefaultEstimator : success !
> 0.168 [Info] Trying to load Component DefaultEffector : success !
> 0.169 [Info] Trying to load Component DefaultSensor : success !
> 0.184 [Info] KernelConfig: axis_config.xml : No KernelComponents listed.
> 0.185 [Info] KernelConfig: Parsing axis_property.cpf.
> 0.189 [Info] PropertyExtension Properties :
> 0.190 [Info] SaveProperties : 0
> 0.190 [Info] SaveFilePrefix : saved_
> 0.190 [Info] SaveFileExtension : cpf
> 0.190 [Info] IgnoreMissingFiles : 0
> 0.190 [Info] ConfigureOnLoad : 1
> 0.191 [Info] KernelBaseFunction Properties :
> 0.194 [Info] frequency : 20
> 0.194 [Info] Effector : DefaultEffector
> 0.195 [Info] Estimator : DefaultEstimator
> 0.195 [Info] Generator : DefaultGenerator
> 0.195 [Info] Controller : DefaultController
> 0.195 [Info] Sensor : DefaultSensor
> 0.196 [Info] KernelConfig: Parsing axis_execution.cpf.
> 0.201 [Info] ExecutionExtension Properties :
> 0.203 [Info] Interval : 1
> 0.204 [Info] KernelConfig: Parsing axis_reporter.cpf.
> 0.210 [Info] ReportingExtension Properties :
> 0.210 [Info] ReportPeriod : 0.5
> 0.210 [Info] SubSamplingInterval : 1
> 0.211 [Info] ReportFile : results.txt
> 0.211 [Info] ReportServer : MyAxisKernel
> 0.211 [Info] WriteToStdOut : 0
> 0.211 [Info] WriteHeader : 1
> 0.211 [Info] WriteToFile : 1
> 0.220 [Info] AutoStart : 1
> 0.221 [Info] Trying to load Component GenericSensor : success !
> 0.229 [Info] Trying to load Component AxisSensor : success !
> 0.230 [Info] Trying to load Component AxisEffector : success !
> 0.239 [Info] Configuring AxisPositionGenerator::Property
> 0.252 [Info] Trying to load Component AxisPositionGenerator : success !
> 0.253 [Info] Configuring PID_Controller::Property
> 0.266 [Info] Trying to load Component PID_Controller : success !
> 0.267 [Info] Configuring P_Controller::Property
> 0.281 [Info] Trying to load Component P_Controller : success !
>
> Input DataObjects are :
>  | ChannelValues <std::vector<double>> |
>  | Size | 0 |
>
> Output DataObjects are :
>  | ChannelValues <std::vector<double>> |
>  | Size |
>
> 0.302 [Info] Trying to load Component cout : success !
> Velocity: Max:100 Min:-100
> Axis1 Position : 0
> Axis1 Low limit : 0 High limit : 0
> Failed to add Position Sensor to channel!
> 0.321 [Info] Kernel MyAxisKernel started.
> 0.322 [Info] ExecutionExtension : Processor could not activate "Default"
> StateMachine.
> 0.338 [Info] ReportingExtension : Reporting to file results.txt.
>
>
>
> --
> H.S.Randhawa

-- 
Peter Soetens -- FMTC -- <http://www.fmtc.be>