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1747-L543

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1747-L543 is an Allen-Bradley SLC 5/04 processor with 64K words of total memory, DH+, and RS-232 communication. It supports larger SLC 500 programs and modular local or scanner-based remote I/O applications.
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Technical specifications for 1747-L543

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1747-L543
  • Product Family:
    SLC 500
  • Product Type:
    SLC 5/04 Controller
  • Stock:
    1
  • User Memory:
    64K words total
  • I/O Capacity:
    4096 inputs and 4096 outputs maximum
  • Communication:
    DH+ and RS-232
  • Program Scan:
    0.9 ms/K typical
  • I/O Scan:
    0.225 ms typical
  • Local Chassis:
    3 maximum
  • Local Module Slots:
    30 maximum
  • Backplane Current:
    1.0 A at 5V DC; 200 mA at 24V DC
  • Tariff Code:
    8537101190
  • Country of origin:
    Singapore
  • 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 Performance DH+ Connectivity Programming Environment

Features:

  • Provides 64K words of total memory for larger SLC 5/04 programs and data tables.
  • Supports up to 4096 inputs and 4096 outputs in a modular SLC 500 system.
  • Combines Data Highway Plus and configurable RS-232 communication channels.

1747-L543 is the 64K-word SLC 5/04 processor configuration for a modular 1746 SLC 500 system. Its larger memory capacity supports control applications with more extensive program logic and data requirements.

The processor executes the stored control program, updates the chassis I/O image, and coordinates installed modules through the SLC backplane. Its typical program scan is 0.9 ms/K, and its typical I/O scan is 0.225 ms.

Confirm the required memory and I/O capacity, slot-0 placement, chassis power supply, compatible 1746 modules, and the DH+ and serial-channel configuration before installation or replacement.

Availability: OEM-discontinued; contact Apter Power for quotation, documentation, and sourcing support.

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.

  • 1747-L541 provides 16K words of total memory: 12K words for program or data and 4K words reserved for data.
  • The processor supports up to 4096 inputs and 4096 outputs, with a typical program scan time of 0.9 ms/K and a typical I/O scan time of 0.225 ms.
  • It supports up to three local chassis and 30 local module slots, with a backplane load of 1.0 A at 5V DC and 200 mA at 24V DC.
  • Channel 1 provides Data Highway Plus communication for connection to a compatible DH+ network.
  • The DH+ channel supports communication with compatible SLC 5/04 processors, PLC processors, operator interfaces, and programming terminals.
  • Rockwell Automation identifies DH+ communication as three times faster than DH-485 communication in the SLC/1746 system.
  • 1747-L543 provides 64K words of total memory, including 60K words for program or data and 4K words reserved for data.
  • The processor executes the stored control program with a typical program scan time of 0.9 ms/K.
  • RSLogix 500 is used to configure the application program, data tables, processor mode, and communication-channel parameters.
  • The specified operating temperature range is 0 to 60 °C (32 to 140 °F).
  • The specified operating relative humidity range is 5 to 95 percent without condensation.
  • The modular SLC 500 hardware specification lists vibration acceleration of 2.5 g from 57 to 2,000 Hz.
Description
1747-L543 is an Allen-Bradley SLC 5/04 processor with 64K words of total memory. It provides 60K words for program or data and reserves 4K words for data, supporting larger SLC 500 applications than lower-memory SLC 5/04 configurations.

The processor addresses up to 4096 inputs and 4096 outputs and supports up to three local chassis with 30 module slots. Its typical program scan time is 0.9 ms/K, its typical I/O scan time is 0.225 ms, and its backplane load is 1.0 A at 5V DC plus 200 mA at 24V DC.

Channel 1 provides DH+ communication, while Channel 0 provides RS-232 communication and can also be configured for DH-485. These interfaces support programming, network communication, and connection to compatible SLC 500 system devices.

Confirm memory use, DH+ addressing, serial-channel settings, chassis capacity, backplane power, compatible 1746 modules, and the stored program before installation or replacement.
Alternative Names
1747 L543 1747L543 AB 1747-L543 Allen-Bradley 1747-L543 Allen Bradley 1747 L543 SLC 5/04 64K Controller
Technical notes
1747-L543 is an Allen-Bradley SLC 5/04 processor with 64K words of total memory, DH+, and RS-232. It supports larger modular SLC 500 control programs and networked I/O systems.
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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.
How much program and data memory does 1747-L543 provide?
1747-L543 provides 64K words total: 60K words for program or data and 4K words for data only.
Which communication channels are included with 1747-L543?
1747-L543 includes DH+ and RS-232 communication; its RS-232 port can be configured for DH-485.
What I/O capacity can 1747-L543 address?
1747-L543 can address up to 4096 inputs and 4096 outputs, subject to the selected local and remote I/O configuration.
What scan performance is specified for 1747-L543?
Rockwell Automation lists a typical program scan of 0.9 ms/K and a typical I/O scan of 0.225 ms.
What is the OEM lifecycle and replacement category for 1747-L543?
Rockwell Automation discontinued 1747-L543 on March 31, 2024 and lists an Engineering Replacement category.
Which manual covers 1747-L543 installation, and how can I request pricing?
Rockwell Automation publication 1747-IN009 covers installation. Contact Apter Power for manuals, sourcing checks, and pricing.