The deal with the Southern League Premier Division Central side runs until 13 January 2019 with the potential to extend further.
Eighteen-year-old Concannon has made just one substitute appearance for Blues Under-23s so far this season.
The player can be recalled at any time and is still permitted to play Non-First Team football for Blues during the work experience period.
Tamworth, who play their home games at the Lamb, are currently 12th in the table.
Concannon had a spell on loan at Sutton Coldfield Town earlier in the season.