Configured for integrated safety and standard control in CompactLogix network platforms, the Allen-Bradley 1768-L45S (1768-L45S Processor Module) provides direct physical/electrical execution.

Hardware Specifications

Industrial Control Network Attributes

The architecture utilizes deterministic EtherNet/IP networks to manage I/O density scaling across local and distributed nodes. The controller backplane bus communication velocity is fixed to maintain packet delivery consistency for safety-rated and standard tasks. Firmware flash compatibility is managed through the programming interface, allowing for synchronized updates across the controller and associated I/O modules without compromising the integrity of the safety state execution.

Field Installation Guidelines

The 1768-L45S requires installation within an open-style industrial enclosure. Proper chassis grounding is required to mitigate electromagnetic interference. The module supports a configuration of 4 local 1768 I/O modules and up to 30 1769 Compact I/O modules distributed across a maximum of 3 expansion banks. Ensure the backplane is de-energized during module mounting. Signal cabling should be separated from high-voltage AC paths to prevent induced noise. Confirm the power supply distance rating is maintained to prevent voltage drops along the I/O backplane.

Frequently Asked Questions

Q: Does this processor support Removal and Insertion Under Power (RIUP)?

A: Yes, the module is designed for RIUP when utilized within a compliant 1768 CompactLogix chassis, provided the installation environment meets all industrial safety standards.

Q: How are the safety and standard memory segments utilized?

A: The processor employs physically and logically partitioned memory; 3 MB is reserved for standard control logic, while 1 MB is dedicated to safety-rated application code to ensure execution independence.

Q: What is the configuration limit for expansion I/O?

A: The controller supports up to 30 1769 Compact I/O modules, which can be organized across a maximum of 3 expansion I/O banks.

Q: Is external power required for the module backplane connection?

A: The module draws power directly from the backplane. The backplane current requirement is 2.1 A at 24 V, which must be accounted for in the system power budget.