R510 – DI840 Digital Input 24V S/R 16 ch Description Description R510 – DI840 Digital Input 24V S/R 16 ch Single or redundant. Advanced On-Board diagnostics. Use Module Termination Unit TU810, TU812, TU814, TU818, TU830, TU833, TU838, TU842, TU843, TU852. Related products ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE076939R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE076940R1 Read more ABB - 1.3 800xA 6.1 Hardware (3BSE088708/E)3BSE038226R1 Read more