Uefa is to re-examine the rule that led to Arsène Wenger's European ban being extended by two matches, after the governing body's president, Michel Platini, admitted the process had become mired in confusion.

Wenger fell foul of rules that ban communication with the bench from coaches exiled to the stands at Arsenal's Champions League qualifier against Udinese at the Emirates. He was handed a two-match ban, which the north London club immediately appealed against.

Platini admitted there was "a lot of confusion" and said he had personally added the issue to the agenda of a meeting of elite coaches from across Europe next week. He said there was no point banning coaches from the stadium or insisting they were minded by officials because modern technology made it difficult to police.

"I am not in love with this regulation. Twenty years ago it was clear, now you can communicate with everyone, you can send an SMS. We have to speak with the coaches."

But he stressed that any modification of the rules would not have any effect on Wenger's disciplinary process and would only apply when Uefa's next rulebook, running from 2012 to 2015, was drawn up.

Platini also called on high-profile coaches to be better role models in the wake of the controversial scenes involving Jose Mourinho at the end of Real Madrid's combustible Spanish Super Cup tie with Barcelona.

"It would have been better not to do that – he is an educator, a coach, perhaps the best coach in the world. The great people in the world have to be examples, they have to be clean. It's a human reflection and I'm not afraid to say that."