The following figure shows how to set up the SCU35.
Connect as following
Eth Wiz Click - SCU35 Micro Click 2
Pmod Hygro - SCU35 Pmod 0
Pmod RTCC - SCU35 Pmod 1
Pmod ALS - SCU35 Pmod 2
Pmod TC1 - SCU35 Pmod 3
Board jumper and switch settings
This is a onetime setup and the board should have been delivered to you with this default settings, but it is good to double check for the first time when you get the board.
Make sure you connect J35 (7-8) jumper.