The component builders manual for RTT 1.12 mentions the availability of a method setPeriod, see http://people.mech.kuleuven.be/~orocos/pub/stable/documentation/rtt/current/doc-xml/orocos-components-manual.html#id478554 I know it is present in v2.1, but it does not seem to exist in 1.12?

Cheers, Theo.