Task.Start() not working

botobias

Hi,

my first try on  the PC sdk and I just wanted to copy the simple program given in the RAB manual (I use IPython). 

Basically I have:

scanner = ABB.Robotics.Controllers.Discovery.NetworkScanner()

scanner.Scan()

controllers = scanner.Controllers

ci=controllers[0]

if ci.Availability==ABB.Robotics.Controllers.Availability.Available:

    #print "is available"

    c=ABB.Robotics.Controllers.ControllerFactory.CreateFrom(ci)

    c.Logon(ABB.Robotics.Controllers.UserInfo.DefaultUser)

try:

    if c.OperatingMode==ABB.Robotics.Controllers.ControllerOperatingMode.Auto:

        print "inside"

        print c.Rapid.GetTasks()

        tasks = c.Rapid.GetTasks()

        m=ABB.Robotics.Controllers.Mastership.Request(c.Rapid)

        print m

        tasks[0].Start()

        #c.Rapid.Start()

        m.Release()

now everything seems to work, taking mastership etc. but task[0].Start() has no effect. After trying around a bit I found that c.Rapid.Start() does the trick. 

My questuion, what is the difference between starting a task and controller.rapid start and why does starting the task not work?

Thanks,

tobias