What are the symptoms of a XS2/XA2 failure?

Forrest 1 year ago in Expansion modules updated by Lars Bolduc 1 year ago 1

What sort of symptoms might I expect with an expansion module failure?

Will D-outs become intermittent? 

would anything else become sporadic?

Are the modules smart enough to realize something is wrong?


For us pretty much everytime an XA2 fails, it's the Digital Outputs that fail.

They 'latch' either on or off. So they stop toggling with the logic. The program thinks everything is operating correctly.

We've also had CAN buses die, where the module just stops showing up to the master.