1747-L40B

The 1747-L40B is a part of fixed hardware controller series by Allen-Bradley. The 1747-L40B operates within 85-265V AC at 47-63 Hz and a 120-240V AC line power**.** Moreover, the 1747-L40B uses a #14 AWG wire size and caters I/O electrical-optical isolation of 1500V AC at 1 minute. Operating at an ambient temperature rating of 32-140°F, this PLC module must be stored at the temperature of -40-85°C. The 1747-L40B has a typical scan time of 8 milliseconds/1K and a program scan hold-up time of 20-700 milliseconds after the loss of power. The 1747-L40B possesses an I/O configuration input of (24) 120V AC and an I/O configuration output of (16) AC Triac.

The 1747-L40B is a fixed controller that consists of a processor with 1,024 (1K) instruction capacities, a power supply, and a fixed number of I/O within a single package. With a capacitor-backed RAM as its memory type, the 1747-L40B offers optional battery back-up and memory backup options through EEPROM or UVPROM. It has a 1K instruction capacity of program memory and a nominal input current of 12mA at 120V AC. With an on-state voltage of 85 - 132V AC and a maximum off-state voltage of 30V AC, the 1747-L40B has a maximum turn-on time of 35 milliseconds and turn-off time of 45 milliseconds.