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        AB 1764-LSP
        AB 1764-LSP
        AB 1764-LSP
        AB 1764-LSP
        AB 1764-LSP
        AB 1764-LSP
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        • Phone: +86 181 0690 9650
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        • Lifecycle status

          Lifecycle: Discontinued.
          Discontinued Date: June 30, 2017.
          Replacement Category: Functional Replacement.

        1764-LSP

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Allen-Bradley 1764-LSP is the standard MicroLogix 1500 processor, providing approximately 7 KB user memory and a base-unit RS-232 communication path for DF1, DH-485 and supported Series B or later Modbus RTU and ASCII operation.
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        Ships by Wednesday, October 28
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 1764-LSP

        • Manufacturer:
          Allen-Bradley
        • Part Number:
          1764-LSP
        • Product Family:
          MicroLogix
        • Product Type:
          MicroLogix 1500 Standard Processor
        • Stock:
          1
        • Device role:
          Standard processor; compatible 1764 base unit required
        • User memory:
          Approximately 7 KB; 7.65K words user-configurable program/data memory in official system guidance
        • Communication path:
          Base-unit Channel 0 RS-232
        • Communication connector:
          DTE 9-pin D-shell
        • Native protocols:
          DF1 full-duplex, DF1 half-duplex slave, DH-485
        • Expansion capacity:
          Up to 8 or 16 modules depending on processor series, base-unit series, operating-system FRN and RSLogix 500 version
        • Maximum expansion banks:
          Two banks with one expansion cable
        • Required expansion termination:
          1769-ECR or 1769-ECL end cap
        • Compatible LSP memory accessories:
          1764-RTC, 1764-MM1, 1764-MM1RTC
        • Optional memory size for LSP:
          8K with 1764-MM1 or 1764-MM1RTC
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Processor & Base Match Expansion Limits Memory & Serial Protocols Applications
        • Install the processor only in a compatible MicroLogix 1500 base unit
        • Match processor Series and firmware before enabling Modbus, ASCII or expanded I/O features
        • Use LSP-compatible memory and real-time-clock accessories rather than LRP-only options

        1764-LSP is an Allen-Bradley MicroLogix 1500 standard processor for compact machine-control systems.

        It provides approximately 7 KB of user memory, uses the base-unit Channel 0 RS-232 path and supports 1769 Compact I/O expansion within published revision limits.

        Before installation or replacement, verify processor and base-unit Series, FRN, RSLogix 500 version, memory accessory, communication driver and expansion-bank design.

        Availability, condition, price, and shipping time for 1764-LSP are confirmed during quotation.

        Allen-Bradley 1764-LSP 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.

        • Pair the removable processor with the exact 1764 base-unit catalog number and Series
        • Keep Channel 0 wiring and protocol settings with the base-unit communication path
        • Do not substitute 1764-LRP when the project has not been checked for its second port and memory differences
        • Use the processor Series, base Series, FRN and RSLogix version to determine the 8- or 16-module limit
        • Use no more than one 1769 expansion cable and no more than two I/O banks
        • Fit the documented power supply and 1769-ECR or 1769-ECL end cap to the added bank
        • Use 1764-MM1, 1764-MM1RTC or 1764-RTC accessories for LSP backup and clock requirements
        • Configure DF1 or DH-485 according to the retained Channel 0 network design
        • Enable Modbus RTU slave or ASCII only on Series B and later 1764-LSP processors
        • Compact machine automation using a MicroLogix 1500 base and embedded I/O
        • Machine-control systems expanded with Bulletin 1769 Compact I/O banks
        • Serial integration with DF1, DH-485, and supported Series B or later Modbus or ASCII devices
        Description
        1764-LSP is an Allen-Bradley MicroLogix 1500 standard processor that installs in a compatible 1764 base unit.

        It provides approximately 7 KB of user memory, uses the base-unit Channel 0 RS-232 path and supports Compact I/O expansion within processor-series, base-series, firmware and programming-software limits.

        Before replacement, verify the processor series, base-unit series, operating-system FRN, RSLogix 500 version, Channel 0 protocol, memory accessory and expansion-bank hardware.
        Revisions

        Revision Part #

        Also known as

        1764-LSP Ser A
        1764-LSP/A, Series A, Rev A
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        1764-LSP Ser B
        1764-LSP/B, Series B, Rev B
        Get Parts Quote
        1764-LSP Ser C
        1764-LSP/C, Series C, Rev C
        Get Parts Quote
        Alternative Names
        1764-LSP 1764 LSP 1764LSP Allen-Bradley 1764-LSP Allen Bradley 1764-LSP Rockwell Automation 1764-LSP AB 1764-LSP MicroLogix 1500 1764-LSP
        Technical notes
        1764-LSP is the standard MicroLogix 1500 processor and depends on a compatible 1764 base unit for power, embedded I/O and Channel 0. Match processor/base series, FRN, RSLogix version and any 1769 expansion bank before replacement.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        When should 1764-LSP be selected instead of 1764-LRP?
        Select 1764-LSP when the project fits its standard memory and single base-unit Channel 0 communication path. The LRP adds a second isolated processor communication channel and supports larger memory options, so an LRP project cannot be assumed to fit an LSP.
        Can a failed 1764-LSP be replaced without disconnecting all field wiring?
        The field terminals, embedded I/O and power connections remain on the 1764 base unit, but the replacement processor must match the installed base-unit series and project requirements. Isolate power, verify the processor seating and series, restore the approved program, and confirm I/O operation before returning the controller to service.
        Can a larger 1764-MM2 or 1764-MM3 module increase the user memory of 1764-LSP?
        No. A memory module stores or transfers application data; it does not expand the processor’s executable memory. The larger 1764-MM2 and 1764-MM3 modules are intended for 1764-LRP applications that exceed the LSP memory range, so they must not be treated as a memory upgrade for 1764-LSP.
        Why can Compact I/O modules remain offline after replacing 1764-LSP?
        Check that the downloaded project matches the physical I/O order and both expansion banks. Also verify the processor and base-unit series, operating-system FRN, expansion cable, bank power, end cap and RSLogix 500 compatibility; a mechanically correct processor replacement does not automatically validate the expansion
        Why might Modbus RTU or ASCII options be unavailable on 1764-LSP?
        These protocols require a Series B or later 1764-LSP and suitable operating-system and RSLogix 500 support. Confirm the processor nameplate series, firmware revision and Channel 0 driver configuration before concluding that the serial port is defective.
        Can a used Series A 1764-LSP replace a Series C processor in a two-bank expansion system?
        Not as a like-for-like replacement. The later processor and base revisions enable expansion features that the Series A processor does not provide. Match the installed series, FRN, RSLogix project and expansion-bank design.
        Why can a replacement 1764-LSP become unreachable through Channel 0 after startup?
        Check whether Channel 0 is using the downloaded user configuration or Default Communications mode, then verify the selected driver, baud rate, node address, protocol and cable. The processor may be healthy but inaccessible because its restored communication settings do not match the programming workstation.

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