1768-L45 | Allen-Bradley CompactLogix L45 Processor, 3MB Memory
1768-L45 | Allen-Bradley CompactLogix L45 Processor, 3MB Memory
1768-L45 | Allen-Bradley CompactLogix L45 Processor, 3MB Memory
    1768-L45 | Allen-Bradley CompactLogix L45 Processor, 3MB Memory
1768-L45 | Allen-Bradley CompactLogix L45 Processor, 3MB Memory

1768-L45 | Allen-Bradley CompactLogix L45 Processor, 3MB Memory

Part #: 1768-L45 Manufactured by: Allen-Bradley
Regular price
$4,699.00
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$4,699.00
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Condition: New-Surplus Original Box
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Product Overview
Allen-Bradley 1768-L45 CompactLogix L45 Processor, 3 Mbyte Memory, 1-Port RS-232 Serial (DF1 or ASCII)
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Product Description P/N: 1768-L45

Description / Specifications

Description 

The Allen-Bradley 1768-L45 is a CompactLogix controller from the 1768 CompactLogix family. This controller provides Logix platform capability intended for medium sized applications. It has an integral 3MB memory, One (1) RS232 fully isolated, communication port.

 

Technical Specifications 

 

Brand Allen-Bradley
Series A and B
Part Number 1768-L45
Manufacturer Rockwell Automation
Product Line CompactLogix
Module Type Processor Module
Product Type Controller
Integrated Memory 3MB
Communication ports One (1) RS232
Shipping Dimensions 8x8x5 inches
Maximum number of I/O modules supported 30 Modules
Maximum number of I/O banks supported 3 Banks
Isolation Voltage 30 Volts Continuous
Power supply distance rating 4
Enclosure Open
Programming cable 1747-CP3 / 1756-CP3
Vibration: Operating 10 to 500 Hz, 5G, 0.030 in. peak-to-peak
Operating Temperature 0° to +60°C (+32° to +140°F)
Backplane current 2.0 Amps at 24 Volts
Power consumption 48.0 Watts maximum
Power dissipation 8.3 Watts

  

 

Information About 1768-L45

The Allen-Bradley 1768-L45 is a CompactLogix controller which offers advanced capabilities and cost-effective solution for medium sized automation requirements. This controller is designed with Logix capability particularly, a larger integrated memory of 3MB, expansion support of up to Four (4) 1768 modules, Thirty (30) 1769 Compact I/O modules that may be installed in Three (3) expansion banks.

This controller is provided with a 3MB memory allocation. An optional non-volatile memory may be added using the CompactFlash 1784-CF128. A fully isolated RS232 communication port is also embedded with this controller. It supports a maximum speed of 38.4 Kbps. This serial communication port supports DF1 Full and Half Duplex and DH485 communication protocol. Recommended cables to establish communication with the embedded serial port are 1756-CP3 or 1747-CP3, which is a right-angle connector to controller, straight to serial port, with length of 3 meters.

For Ethernet communication and any other communication protocols, the 1768-L45 supports installation of up Two (2) communication modules. Specifically for Ethernet, 1768-ENBT and 1768-EWEB may be installed.

The 1768-L45 Compact Logix controller by Allen-Bradley offers solutions for control applications with motion, I/O, and network demands. It supports Four (4) 1768 modules, Thirty (30) 1769 Compact I/O modules.

It requires backplane current of 2.0 Amps at 24 Volts. When used with 1769 modules, the backplane current draw of 2.0 A at 5.7 Volts. For 1768 modules, the backplane current draw is 5.6 A at 5 Volts. Total backplane Current draw when used with 1768 and 1769 modules is 7.6 Amps at 5.2 Volts. It dissipates 8.3 W along power consumption of 48.0 W.

The 1768-L45 can support a maximum of thirty 1769 I/O modules which can reside in 3 local I/O module banks. It has an isolation voltage of 30 Volts with the isolation type tested at 500 Volts AC for 60 seconds. The 1768-L45 is certified at the T4 (135 degrees Celsius) temperature code.

When installing the controller, use M4 or #8 screws. The controller has dimensions of It has dimensions of 131.6 x 67.4 x 121.8 millimeters or 5.18 x 2.65 x 4.80 inches and weighs approximately 0.34 kilograms (11.9 ounces). The 1768-L45 has an operating temperature range between 0 and 60 degrees Celsius (32 to 140 degrees Fahrenheit) at a 5 to 95% non-condensing relative humidity. It has an operational shock rate of 30G and one of up to 50G in non-operational mode, with a maximum vibration of 5G at 10 to 500 Hertz. It has a CISPR 11 Group 1, Class A, emission standard for an industrial environment.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1768-L45
Question: What is the 1768-L45 used for?
Date Update:05/06/2025
Answer:

The 1768-L45 is a programmable logic controller (PLC) that is used for controlling and automating industrial processes. It is part of the CompactLogix series, offering compact, modular, and scalable solutions for a wide variety of automation applications. It is commonly used in industries like manufacturing, packaging, material handling, and more.

Question: What are the key specifications of the 1768-L45?
Date Update:05/06/2025
Answer:
  • Processor: 1.2 GHz, PowerPC 440 architecture processor.
  • I/O support: Supports up to 8,000 I/O points in a system.
  • Memory: 2 MB of user memory (Flash memory), 128 MB of RAM.
  • Inputs and Outputs: Compatible with 1769 I/O modules, which are modular and scalable.
  • Communication Ports:
    Ethernet/IP port for communication with other devices on the network.
    RS-232 serial port for communication with serial devices or other controllers.
  • Programming Environment: RSLogix 5000 or Studio 5000 software for configuration, programming, and diagnostics.
  • Environment Rating: Operates in 0°C to 60°C (32°F to 140°F) temperature range with a humidity range of 5% to 95% (non-condensing).
  • Mounting: Compact, DIN rail mountable.
Question: Where can I find the user manual or technical documentation for the 1768-L45?
Date Update:05/06/2025
Answer:

The user manual, datasheet, and other technical documentation for the 1768-L45 can be found on the Rockwell Automation website (under the product’s support section) or by contacting their technical support team. These documents include installation guides, configuration details, and troubleshooting steps.

Question: How do I upgrade the firmware of the 1768-L45?
Date Update:05/06/2025
Answer:

Firmware updates for the 1768-L45 are typically done using RSLogix 5000 or Studio 5000. You will need to download the latest firmware version from the Rockwell Automation website and use the software to perform the update. The steps include:

  1. Download the firmware file from the Rockwell Automation website.
  2. Open RSLogix 5000 or Studio 5000 and connect to the 1768-L45 controller.
  3. In the software, navigate to the controller’s properties, and select the option to update the firmware.
  4. Follow the prompts to complete the firmware update. Ensure that the system is not interrupted during the process.
Question: How do I troubleshoot communication issues with the 1768-L45?
Date Update:05/06/2025
Answer:

If you're experiencing communication problems with the 1768-L45, follow these steps:

  • Check IP Settings: Ensure that the IP address of the controller matches the network configuration and does not conflict with other devices.
  • Verify Connections: Ensure that Ethernet cables are securely connected, and there are no loose connections.
  • Check Firmware Compatibility: Verify that the firmware of the controller is up-to-date and compatible with your system.
  • Review Network Settings: Check if there are any network issues, such as switches, routers, or other network devices that could be affecting communication.
  • Use Diagnostics: You can use diagnostic tools in Studio 5000 or RSLogix 5000 to check the health of the communication network.
IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1768-L45 is a CompactLogix controller from the 1768 CompactLogix family. This controller provides Logix platform capability intended for medium sized applications. It has an integral 3MB memory, One (1) RS232 fully isolated, communication port.

 

Technical Specifications 

 

Brand Allen-Bradley
Series A and B
Part Number 1768-L45
Manufacturer Rockwell Automation
Product Line CompactLogix
Module Type Processor Module
Product Type Controller
Integrated Memory 3MB
Communication ports One (1) RS232
Shipping Dimensions 8x8x5 inches
Maximum number of I/O modules supported 30 Modules
Maximum number of I/O banks supported 3 Banks
Isolation Voltage 30 Volts Continuous
Power supply distance rating 4
Enclosure Open
Programming cable 1747-CP3 / 1756-CP3
Vibration: Operating 10 to 500 Hz, 5G, 0.030 in. peak-to-peak
Operating Temperature 0° to +60°C (+32° to +140°F)
Backplane current 2.0 Amps at 24 Volts
Power consumption 48.0 Watts maximum
Power dissipation 8.3 Watts

  

 

Information About 1768-L45

The Allen-Bradley 1768-L45 is a CompactLogix controller which offers advanced capabilities and cost-effective solution for medium sized automation requirements. This controller is designed with Logix capability particularly, a larger integrated memory of 3MB, expansion support of up to Four (4) 1768 modules, Thirty (30) 1769 Compact I/O modules that may be installed in Three (3) expansion banks.

This controller is provided with a 3MB memory allocation. An optional non-volatile memory may be added using the CompactFlash 1784-CF128. A fully isolated RS232 communication port is also embedded with this controller. It supports a maximum speed of 38.4 Kbps. This serial communication port supports DF1 Full and Half Duplex and DH485 communication protocol. Recommended cables to establish communication with the embedded serial port are 1756-CP3 or 1747-CP3, which is a right-angle connector to controller, straight to serial port, with length of 3 meters.

For Ethernet communication and any other communication protocols, the 1768-L45 supports installation of up Two (2) communication modules. Specifically for Ethernet, 1768-ENBT and 1768-EWEB may be installed.

The 1768-L45 Compact Logix controller by Allen-Bradley offers solutions for control applications with motion, I/O, and network demands. It supports Four (4) 1768 modules, Thirty (30) 1769 Compact I/O modules.

It requires backplane current of 2.0 Amps at 24 Volts. When used with 1769 modules, the backplane current draw of 2.0 A at 5.7 Volts. For 1768 modules, the backplane current draw is 5.6 A at 5 Volts. Total backplane Current draw when used with 1768 and 1769 modules is 7.6 Amps at 5.2 Volts. It dissipates 8.3 W along power consumption of 48.0 W.

The 1768-L45 can support a maximum of thirty 1769 I/O modules which can reside in 3 local I/O module banks. It has an isolation voltage of 30 Volts with the isolation type tested at 500 Volts AC for 60 seconds. The 1768-L45 is certified at the T4 (135 degrees Celsius) temperature code.

When installing the controller, use M4 or #8 screws. The controller has dimensions of It has dimensions of 131.6 x 67.4 x 121.8 millimeters or 5.18 x 2.65 x 4.80 inches and weighs approximately 0.34 kilograms (11.9 ounces). The 1768-L45 has an operating temperature range between 0 and 60 degrees Celsius (32 to 140 degrees Fahrenheit) at a 5 to 95% non-condensing relative humidity. It has an operational shock rate of 30G and one of up to 50G in non-operational mode, with a maximum vibration of 5G at 10 to 500 Hertz. It has a CISPR 11 Group 1, Class A, emission standard for an industrial environment.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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