| Item Description | DI74B digital input 16 x 60-220V DC / DI74B, digital input module with 16 input channels 60-220 VDC (overload factor 20%), inputs are galvanically isolated from system via OPTOCOUPLER, groups of 8 channels share a common root, signal status indication individually for each channel via LED, signal voltage logical 0 <65%*UN, logical 1 >85%*UN, module designed as ETHERCAT slave. The max. counting rate when creating counter values over a digital input is 20HZ, the min. high signal periode is 25MS |