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Allen-Bradley 1768-L43S Compact

Allen-Bradley 1768-L43S Compact
Details:
1768-L43S Allen-Bradley Compact
Brand: Allen-Bradley
Model: 1768-L43S
Inventory situation: Goods are available in stock.
The 1768 - L43S Allen - Bradley Compact is a high-performance CompactLogix controller, belonging to the Rockwell Automation Control System series. This programmable logic controller (PLC) is designed to meet the demands of modern industrial applications, providing powerful processing capabilities and flexible configuration options. It is equipped with four built-in Ethernet/IP ports, which support high-speed data transmission and network communication, enabling it to be seamlessly integrated with a variety of devices. It offers excellent computing capabilities and is capable of executing efficient control algorithms and real-time data processing.
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Description
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Product Specifications

Model: 1768-L43S
Series: CompactLogix
Processor Type: 32-bit high-performance processor
Programming Languages: Supports ladder diagrams, function block diagrams, sequential function charts, structured text, etc.

Allen-Bradley
1768-L43S

Dynamic Task Processing: Supports simultaneous processing of multiple tasks.
Motion Control: Supports simple motion control functions.
Anti-interference: Possesses a certain ability to resist electromagnetic interference.

Products Description

 

The Allen Bradley 1768-L43S is a Compact GuardLogix safety controller that combines standard control and safety control functions in one powerful module, designed for industrial automation applications requiring reliable and secure operation. Released by Rockwell Automation, this controller features a dual memory architecture with 2 MB standard user memory and 0.5 MB safety user memory, providing ample space for programming both regular control tasks and safety-critical functionsRockwell Automation.

 

Equipped with one isolated 9-pin shielded DIN-type RS-232 serial port operating at up to 38.4 Kbps, the Allen Bradley 1768-L43S supports DF1/ASCII protocols for programming and communication with other industrial devicesRockwell Automation. The port offers 30V continuous isolation and has passed 500V AC @ 60s testing between the RS-232 interface and the system, ensuring reliable performance in harsh industrial environmentsRockwell Automation.

 

For system expansion, the Allen Bradley 1768-L43S provides exceptional flexibility. It can connect up to 2 Allen Bradley 1768 modules (including communication and motion modules) and 16 Allen Bradley 1769 I/O modules, allowing users to customize their automation systems according to specific application needsRockwell Automation. The controller supports 2 I/O groups and has a power supply distance rating of 4 modules, ensuring stable power distribution across the systemRockwell Automation.

 

In terms of electrical specifications, the Allen Bradley 1768-L43S operates with Allen Bradley 1768-PA3 or 1768-PB3 power supplies, consuming 33.6 W of power and dissipating 7.5 W of heatRockwell Automation. It draws 2.8A @ 5V DC for 1768 modules, 2.0A @ 5V DC for 1769 modules, and 1.4A @ 24V DC from the backplane, with a total combined current draw of 4.8A @ 5V DCRockwell Automation. The module occupies 1.5 slot widths in standard Allen Bradley racks, offering a space-efficient solution for control panelsRockwell Automation.

 

FAQ

 

Q: What are the key memory specifications of the 1768-L43S controller?

A: The 1768-L43S provides 2.0 MB of standard user memory for program logic and data, plus 0.5 MB of dedicated safety memory for safety-critical applications, delivering a combined total of 2.5 MB of onboard memory. Non-volatile memory backup is supported via a CompactFlash memory option. The controller also includes a lithium battery (1747-BA) for battery-backed RAM retention during power-off conditions.

Q: What is the processing speed of the 1768-L43S?

A: The 1768-L43S delivers a program scan time of approximately 0.4 milliseconds per thousand (K) instructions, enabling fast cycle execution for complex safety and motion control applications. The controller is built around a 32-bit processor architecture for efficient data handling and deterministic control response.

Q: What is the maximum I/O capacity of the 1768-L43S?

A: The 1768-L43S supports up to two 1768 modules (including communication and motion modules) and up to sixteen 1769 Compact I/O modules distributed across a maximum of two I/O banks, with the local bank supporting up to eight 1769 I/O modules. The controller supports a total of 250 controller connections, providing ample capacity for distributed I/O and device communication.

Q: How many motion axes can the 1768-L43S support?

A: The 1768-L43S supports up to 12 total motion axes, comprising 4 position axes, 2 feedback axes, and 6 virtual axes, with a maximum of two 1768 motion modules installed in the system. To enable motion control, the controller requires a SERCOS interface module, such as the 1768-M04SE, which can connect up to four Kinetix servo drives and motors.

Q: What are the power consumption and thermal dissipation ratings for the 1768-L43S?

A: The 1768-L43S draws 2.8A at 5V DC (1768 backplane current) and 2.0A at 5V DC (1769 I/O current), with a total backplane current draw of 4.8A at 5V DC and 1.4A at 24V DC. Total power consumption is rated at 33.6 W, with a power dissipation (heat load) of 7.5 W, requiring minimal cooling within the control cabinet. The controller is designed to operate with a 24V DC external power supply using either the 1768-PA3 or 1768-PB3 power supplies.

 

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