1769-L24ER-QB1B Allen-Bradley Packaged Controller

Brand：Allen-Bradley Model number：1769-L24ER-QB1B

Country of origin: United States Product weight：0.640kg

HS code：8517623990

Product Details：

1769-L24ER-QB1B Allen-Bradley Packaged Controller

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Loss of communication or power during a controller firmware upgrade can result in the controller rejecting the new firmware. Upon the rejection of new firmware, the controller reverts to the out-of-the-box firmware revision: • If the controller firmware upgrade fails and the OK status indicator flashes red, take these corrective actions: – Cycle controller power and attempt the firmware upgrade again. – If, after attempting another upgrade, the controller’s OK status indicator continues to flash red, cycle power and attempt another firmware upgrade. – If repeated attempts to upgrade the controller firmware continue to result in the OK status indicator flashing red, contact Rockwell Automation® Technical Support. • If the controller firmware upgrade fails and the OK status indicator is solid red, contact Rockwell Automation Technical Support.

Pre-scan of Add-On Instruction Behavior The Pre-scan behavior of Add-On Instructions has been enhanced. This enhancement can affect Pre-scan behavior of Add-On Instructions when indirect addressing is used. This enhancement can improve the Add-On Instruction initialization behavior when indirect addressing is used. For more information, see Rockwell Automation Knowledgebase document 481124.

Introducing the Studio 5000 Logix Designer Application The version 21 release re-brands RSLogix™ 5000 software to Logix Designer application and embeds the application as a key component of the Studio 5000 environment. The Studio 5000 environment is the new launch point for components of the Integrated Architecture. The Studio 5000 environment provides the infrastructure to accomplish the following between traditionally independent automation development tasks: • Share data • Share design time components • Share runtime components

Extended Tag Properties You can use Extended Properties to define additional information about a tag or structure of tags. The Logix Designer application, version 21 or later, provides the option to specify Engineering Units and Min/Max Values for numeric tags, Engineering Units and state information for Boolean tags. Extended properties are also available for user defined data types, arrays, or other complex data structures

Project Documentation Stored in Controller The Logix Designer application, version 21, provides the option to store all of your project documentation, including comments, tag descriptions, and other key descriptors of the project in the controller. Other project descriptions can be stored online, such as routine descriptions and task descriptions. Uploading a project now restores all of the original project documentation without having to find the original ACD file

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