External modbus documentation

Is there an externally readable documentation for the updated modbus kit? It is really hard to read the in-chart documentation while looking at the chart at the same time.

http://www.opto22.com/documents/2009_modbus_int_kit_for_pac_control_users_guide.pdf

That is from May 2015 and seems to be current.

You can also copy and paste the subroutine notes out to notepad and print them for a quick reference.

Thank you!