Features:
- Enhanced processor: 14 KB user memory for MicroLogix 1500
- Second serial path: isolated RS-232C Channel 1 on the processor
- Conditional expansion: one or two I/O banks under documented series and firmware rules
1764-LRP serves MicroLogix 1500 projects that need more memory and a second serial communication duty.
Because the processor depends on a separate base unit, its channel and expansion capabilities cannot be evaluated from the processor label alone.
A valid replacement record should connect the full processor catalog to the base, series, firmware, software, port settings, I/O bank, and project archive.
Apter Power can coordinate official-document review, quotation, and sourcing support for 1764-LRP.
Allen-Bradley 1764-LRP MicroLogix 1500 RS-232 Processor Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Channel 0: preserve the base-unit port settings and communication-toggle recovery path.
- Channel 1: assign the isolated processor port its own protocol, address, timing, and cable record.
- Peer validation: test each serial conversation independently before both channels operate together.
- Revision gate: read processor series and operating-system FRN from the installed hardware and status file.
- Software match: use the RSLogix 500 version required by the selected processor and expansion features.
- Upgrade control: back up the validated project and communication records before any operating-system change.
- Module count: apply the documented 8- or 16-module condition instead of using one universal limit.
- Second bank: use only one approved expansion cable with a qualified power supply and end cap.
- Loading review: calculate bus current and heat dissipation for the exact base, processor, and module order.
- Two-path serial control: separate programming, operator, modem, or supported network-converter duties between channels.
- Expanded MicroLogix 1500 systems: coordinate one or two Bulletin 1769 I/O banks under documented revision limits.
- Recipe and data applications: use the enhanced processor memory and supported data-handling facilities in qualified projects.