SBL2360S, setting active level using DINL seems to be ignored.

We are attempting to use a low-active limit switch with an SBL2360S. Using either the roborun utility to set the active polarity on DIN 6, or by using DINL 6 1 from the console, or by using setconfig(_DINL, 6, 1) from microbasic, the polarity inversion setting is ignored. The net result is that the sense of our limit switch is backwards. What else should I be looking for?

No, this should work. Can you post a circuit diagram of how you have the switch hooked up and a screenshot of the commands you are using from the console tab?