Couplers & I/O modules: Item no. 750-340 Fieldbus Coupler PROFINET IO; 1st Generation Item no. 750-340 Fieldbus Coupler PROFINET IO Discontinued Generate Datasheet Download Downloads as zip Download Compare Find distributors Configure Item no. 750-340 Fieldbus Coupler PROFINET IO Discontinued Generate Datasheet Download Downloads as zip Download Compare Find distributors Configure