DigiOneSP connection to modbus RTU

Hellow, my question : is possible connect Digi One SP with a rtu serial modbus?.

As long as you configure the serial port of the Digi One SP for a serial port profile of IA, Modbus TCP and RTU are supported.

http://ftp1.digi.com/support/documentation/90000583_N.pdf

(see page 45)

Hi and thank you for the answer, I not see port profile Industrial Automation in the web interface configuration of device. then, which is the alternative?