OMRON G72C-OD16-1 can it work with RS485 and other plc or HMI?

[bigplik]

Hi,
I wonder if is possible to use OMRON G72C-OD16-1 rs485 module
for communication with other than Omron PLC or HMI.

Can't find any data to understand what protocol they use (MODBUS, MODBUS RTU, MODBUS ASCII or other) and how to build the frame
for this module to communicate with it.

Module I want to use is 16DO with transistors.

I appreciate any info about that.