Digi One IAP - Honeywell EPKS EIM - explicit messaging or implicit messaging

i have couple of digione IAP will convert the Ethernet/IP client/server request from ethernet side to modbus RTU equipment on serial side.

the client on ethernet side is Honeywell EPKS Ethernet interface module which talk ethernet/ip, CIP by class 1 (implicit messaging) or class 3 (explicit messaging).

i could not find much information about the type of the ethernet/IP digi One IAP is using. found one example showing it used slc type read/right, is that meaning Digi One will only talk Class 3 explicit methods?