Allen-Bradley micrologix 1500 Reference Manual

Publication 1762-RM001C-EN-P
2-4 Controller Memory and File Types
MicroLogix 1500 User Memory
MicroLogix 1500, 1764-LSP Processor
The 1764-LSP processor supports over 7K of memory. Memory can be used for
program files and data files. The maximum data memory usage is 4K words as
shown below.
MicroLogix 1500, 1764-LRP Processor
The 1764-LRP processor supports 12K of memory. Memory can be used for
program files and data files. The maximum data memory usage is 4K words as
shown below.
The 1764-LRP processor also supports 48K of battery backed memory for
Data Logging Operations. See Chapter 22 for Data Logging information.
See MicroLogix 1500 Memory Usage and Instruction Execution Time on
page B-1 to find the memory usage for specific instructions.
IMPORTANT
For the MicroLogix 1500, the maximum file size of any
single ladder file is 6.4K words. You can utilize the entire
programming space by using multiple ladder files through
the use of subroutines.
4.0K
0.5K
0K
0K
3.65K 4.35K
Data Words
Program Words
4.0K
0.5K
0K
0K
8K 8.7K
Data Words
Program Words

Allen-Bradley micrologix 1500 Specifications

General

Processor Type	16-bit
Programming Language	Ladder Logic
Mounting	DIN rail or panel mount
Programming Software	RSLogix 500
Communication Ports	RS-232
Power Supply	24V DC
Operating Temperature	0°C to 55°C (32°F to 131°F)
Controller Type	Programmable Logic Controller (PLC)