The Allen-Bradley 1785-L40C PLC-5/40C is an industrial-grade controller with ControlNet capabilities, designed to seamlessly manage inputs and outputs of field devices via its 48-KB Word SRAM processor. This controller supports up to 2048 complementary I/O points and features a fast typical program scan time of 2ms per K-word, ensuring efficient operation even in complex applications. Equipped with multiple communication ports including a ControlNet Network Access Port, 8-pin mini-DIN connector for programming, and a 25-pin Serial Port with selectable transmission rates, it offers flexible connectivity options. With a robust design that can endure a range of environmental conditions, the 1785-L40C supports various intelligent I/O modules, sustains operation from 0-60 °C, and is certified to UL, CE, CSA, and C-TICK standards, making it a reliable choice for industrial automation.
Technical specifications for 1785-L40C
Manufacturer
Rockwell Automation
Brand
Allen-Bradley
Part Number/Catalog No.
1785-L40C
Module Type
ControlNet Processor Module
Processor
PLC-5/40
Max User Memory Words
48 Kilowords
Battery-Backed Static RAM
Yes
EEPROM Program Backup Option (using 1785-ME16, -ME32, -ME64, and -M100)
Yes
Protected Memory
No
Max Total I/O
2048 (any mix) or 2048 in + 2048 out (complementary)
Max Analog I/O
2048
I/O Scan Time Per Rack
10 ms at 57.6 kbits/s, 7 ms at 115.2 kbits/s, 3 ms at 230.4 mbits/s
