I/O Configuration Error FX3U

[Paolo_911 4]

I have a minor error code on an FX3U-64MT/ES connected to an FX2N-16EX and FX2N-16EYT. This error code is an I/O configuration error code#1040. This is an input error code and I reconnected the FX0N-65EC connection cable and still receive an error (even without it connected). Any ideas on how to resolve this? I assume it is a wiring issue, but everything seems fine and there is power on the inputs. Would it then be a program configuration issue somehow., even though this is automatic ?

[Paolo_911 4]

Upon further research it looks like I may need an FX2N-CNV-BC converter module to communicate with the extension units. I am going to try this and see how it turns out. I will write an update whether or not this solves the problem. 

[Paolo_911 4]

Yes this indeed was my issue. You need a FX2N-CNV-BC module to communicate from an FX3U to extension I/O FX2N-16EX or 16EYT.