Siemens 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