H. G. Muller wrote on Tue, Oct 24, 2017 04:58 PM EDT:
Note that the Cannon is a quite weak piece. In Xiangqi it is only a bit stronger than the Horse even in the opening phase, while a Horse is only worth half a FIDE Knight (~1.6 Pawn) because of its blockability. So I would put the Cannon at 2.4 Pawns at most, and on 8-rank boards 2 Pawns would probably already be optimistic.
Note that the Cannon is a quite weak piece. In Xiangqi it is only a bit stronger than the Horse even in the opening phase, while a Horse is only worth half a FIDE Knight (~1.6 Pawn) because of its blockability. So I would put the Cannon at 2.4 Pawns at most, and on 8-rank boards 2 Pawns would probably already be optimistic.