Allen-Bradley MicroLogix 1200 Reference Manual page 4

Summary of Changes 4
MicroLogix 1500
Catalog Series Revision
Number Letter Letter
1764-LSP A B
1764-LSP A C
1764-LSP B A
1764-LRP B A
1764-LSP B B
1764-LRP B B
Publication 1762-RM001C-EN-P - November 2000
Firmware Release Date Enhancement
Release No.
FRN2 February 1999
FRN3 October 1999
FRN4 April 2000
FRN4 April 2000
FRN5 October 2000
FRN5 October 2000
Initial product release.
MicroLogix 1500 Controllers with 1764-LSP Processor can now
be used with Compact I/O (Bulletin 1769) Expansion Cables and
Power Supplies.
MicroLogix 1500 Controllers with 1764-LSP Processor can now
use:
• String Data File Type
• ASCII Instruction Set Support
• Modbus RTU Slave protocol
• Ramping, when using PWM outputs
• Static Data File Protection
• RTC Messaging
Initial product release. MicroLogix 1500 Controllers with
1764-LRP Processor has all the features of the 1764-LSP, plus:
• Second communications port (isolated RS-232)
• Data Logging capability
For both the 1764-LSP and LRP processors:
• When using the PTO feature, the controller can now
perform a controlled stop when using PTO outputs. The
deceleration phase of the PTO can be initiated early via
ladder logic.
• Enhanced program compare bit functionality in the Memory
Module.