For data coming remotely into ThingWorx .You can display that data into a mashup using TimeSeriesChart widget in thingworx .You need to create a new value stream in Thingworx .The properties which are receiving data in Thingworx should be logged .When you edit or create a property in thingworx there is a checkbox there with name "Logged" .Check that check box and assign the value stream which you have created to the thing/thingtemplate on which properties are logged .You can attach or assign a value stream to thing/thingtemplate by going to General Information tab and there is an option for Value Stream there . That's all you need to do,by this your properties will be logged into value stream .And on the mashup you can take a time series chart and fetch the data using "QueryPropertyHistory" service of that template/thing .
Thanks ,
Mukul Narang
