CARD AND ELECTRONIC MODULE; FEATURES: HIGH SPEED COUNTER D HSC 24 VDC 8 IN 4 OUT; EQUIPMENT: PLC; COMPONENT: ENCODER SIGNAL OPTOCOUPLER; NUMBER OF INPUT CHANNELS 2, WITH 2 OUTPUTS EACH OPTICALLY ISOLATED, FREQUENCY COUNTER 500 KHZ MAX. WITH DIFFERENT INPUT, 250 KHZ MAX. WITH SINGLE INPUTS, OUTPUT SIGNALS LOGIC STATE 1 (24 VDC NOMINAL) LOGIC STATE 0; MANUFACTURER 1: MODICON; N-PART 1: 140EHC20200