It sounds like you have inserted a Numeric Limit Test step that uses the sequence call adapter. This implies that you would like a single numeric value returned by your sequence call that is then evaluated by comparison to the limits of the sequence call step. Let me know if I have made any incorrect assumptions.
The solution is to add a Statement step within your called sequence that uses the expression
RunState.Caller.Step.Result.Numeric = 10
where you would substitute 10 with your measurement (e.g. Locals.MyMeasurment or RunState.PreviousStep.Result.Numeric).
Let me know if this does not make sense or does not suit you needs.