Siemens SIMATIC PLC 6AG1550-1AA00-7AB0 SIPLUS S7-1500 TM COUNT 2X24V    -40 ... +70 DEGREES C    WITH CONFORMAL COATING    BASED ON 6ES7550-1AA00-0AB0    .    COUNTING MODULE, 2 CHANNELS    FOR 24V INCREMENTAL ENCODER    OR 24V PULSES,    3DI, 2DQ PER CHANNEL 6AG15501AA007AB0