cFP Module ID over Modbus

I have a cFP-1804 base with several modules installed and I'd like to be able to identify which module is in a particualr slot. I'm using Modbus to do all my configuration and data collection. Is there a way to identify which module is in a slot over Modbus?

For example: A FP-AI-110 module has an ID of 0101 and a FP-AIO-600 has an ID of 0123. How can I determine this over Modbus?