Reread my reply earlier in this discussion when I said a Beam model will give the same result as a Solid model of the string when pulled over a roller.
If you study my model, under the Geometry branch, click on the Beam (Circle) object and in the Details window, you will see Model Type where you can change a Beam to a Link/Truss element.
 
I shall warn you that since you found it difficult to obtain convergence with Beam elements, you will find it 10 times more difficult to obtain convergence with Link elements. The reason is the shape of a chain is unstable unless it is under tension. Extra effort is required to put the Links under tension before any movement can occur. A string of beam elements is stable on its own if you hold one end fixed.
Reread the paragraph above beginning with "It may be easier to converge if..." that I wrote in the March 21, 7:28 am reply.
You are navigating away from the AIS Discovery experience