1785-L80B

Overview

1785-L80B is an Allen-Bradley PLC-5/80 processor designed for high-capacity I/O control with multiple communication options.

Memory and Expansion

• Controller Memory: Up to 64K words

• Memory Expansion: 1785-ME16 (16K), 1785-ME32 (32K), 1785-ME64 (64K)

• Max User Memory: 100 Kilowords

• Battery-Backed SRAM: Yes

• EEPROM Program Backup Option: Supported with ME modules

• Protected Memory: No

I/O Capacity

• Max Total I/O: 3072 inputs and 3072 outputs

• Max I/O Chassis: 32 racks

• Max Analog I/O: 3072

• 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

Communication and Ports

• Communication Ports: Four DH+/Remote I/O, one configurable serial port (RS-232/422/423), two programming terminals

• Supported Protocols: DF1, ASCII, Data Highway Plus (DH+), Remote I/O

• Control Coprocessor Expansion Port: Yes

Power and Physical

• Power Dissipation: 12 W

• Backplane Current Draw: 2.3 A

• Weight: 3.00 lbs (1.36 kg)

• Controller Redundancy: Supported

• Battery: 1770-XYC

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