... inputs to the system. The controller provides the control functions: I/O modules provide the inputs and outputs. 24 VDC, 48 ... protection. CTT12,CTU05R,ANALOGUE O/P REDUNDANCYCTU11R,FIELD BUS SLAVE I/F REDUNDANTDAI01, Analog input as of V 3DAI02,ANALOG INPUT ... Digital Input 24V d.c.DI802 Digital Input 120V a.c./d.c., 8x1cDI803 Digital Input 230V a.c./d.c., 8x1cDI810 Digital Input 24V d.c. 2x8 ch.DI811 ...