Description

The 1785-L20E/E is a standard processor module from Allen-Bradley's PLC5 series, designed for programmable logic control in various industrial automation applications. It features substantial memory capacity, efficient I/O scanning, and flexibility for expansion.

Key Specifications

• Product Type: Programmable Logic Controller

• Series: PLC5

• Module Type: Standard Processor

• Processor: PLC-5/20E

• Max User Memory Words: 16 Kilowords

• Battery-Backed Static RAM: Yes

• EEPROM Program Backup: Yes (using 1785-ME16, -ME32, -ME64, and -M100)

• Max Total I/O: 512 (any mix) or 512 in + 512 out (complementary)

• Max Analog I/O: 512

• RS-232-C/422-A/423-A Ports: 1

• Control Coprocessor Expansion Port: Yes

Performance

• 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 kbits/s

Power and Load

• Backplane Current Load: 2.3 A

• Power Dissipation: 12 W

• Power Supply Compatibility: 1771-P4S, -P6S, -P4S1, -P6S1

Additional Information

• Protected Memory: No

• Max I/O Chassis Total: 13

• Max I/O Chassis Universal Remote: 12