Siemens 6GK1906-1JA00The Siemens 6GK1906 1JA00 is a digital input module compatible with the S7 200 series programmable logic controllers (PLCs), offering enhanced functionality for industrial automation systems. This compact unit features eight configurable channels that can be set as either normally open or normally closed inputs, accommodating a maximum input voltage of 30 volts DC and a current of 10 mA per channel. Equipped with a digital filter for adjustable delay