Internal I/O Module Data Interchange Failure

What does E3-16164 mean?

An internal data interchange failure has occurred within the I/O bus module. This suggests a critical hardware malfunction or corruption within the module's internal communication pathways, preventing proper data exchange and rendering the module inoperable. It is a severe internal fault.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Ensure proper module seating and connection to the backplane or terminal unit.