Allen-Bradley 1756-L73 ControlLogix 5573 PAC Unit

Module Feature

1756-L73 belongs to ControlLogix 5573 series programmable automation controller manufactured by Allen-Bradley (Rockwell Automation). It features 8MB user memory and 0.98MB I/O memory. Supports multiple programming languages including ladder logic,structured text,function block diagram and sequential function chart. Equipped with USB programming port,4-character alphanumeric display,SD card slot for non-volatile parameter backup. It supports integrated CIP motion over EtherNet/IP,can handle up to 128000 digital I/O and 4000 analog I/O points. Compatible with 1756 series I/O modules,communication modules and redundant controller configuration. Widely used in automotive,metal processing,packaging lines and large-scale process automation systems.

Working principle

The controller executes user logic program cyclically,reads field I/O status via backplane and network,calculates control commands and outputs to field devices. It performs motion planning for servo axes through CIP motion protocol. Continuously monitors module health,backplane communication and internal operating status. SD card supports firmware upgrade and program backup/restore.

Onboard components

Main CPU chip,volatile memory,non-volatile SD card slot,USB programming interface,alphanumeric LED display,backplane communication circuit,internal power regulation circuit,status indicator LEDs.

LED indicators

Power LED,run status LED,fault alarm LED.

Hardware self-diagnosis

Backplane communication fault,memory check error,watchdog timeout,low power detection,I/O connection fault,program mismatch detection.

Programming software

Studio5000 Logix Designer software,supports program editing,online monitoring,real-time tag viewing,fault log reading and firmware update.

Electrical & Process Parameters

Model:1756-L73 Brand:Allen-Bradley Device type:ControlLogix 5573 Programmable Automation Controller User memory:8MB I/O memory:0.98MB Power consumption:2.5W Supply:Power from 1756 chassis backplane Programming port:USB External storage:SD card slot Network:EtherNet/IP,ControlNet,DeviceNet via optional communication module Max digital I/O:128000 Max analog I/O:4000 Motion support:CIP integrated motion over EtherNet/IP Cooling:Natural convection cooling Protection:Over temperature,memory fault,watchdog protection

Mechanical & Structure

Mounting:Plug into 1756 ControlLogix chassis slot Protection class:IP20 Housing:Metal reinforced plastic housing

Environmental

Operating temperature:-20℃ ~ +60℃ Storage temperature:-40℃ ~ +85℃ Ambient humidity:5~95% non-condensing Certification:CE,UL compliant Status: Allen-Bradley ControlLogix 5573 PAC for large discrete and process automation with integrated motion capability

Installation

Follow ESD safety procedure before handling.Turn off chassis power before module insertion.Align edge connector and slide controller into 1756 chassis slot and lock the latch.Complete power-up test,download program and verify communication with I/O and network devices.

Interface

USB programming port,SD card slot,backplane connector,front panel status display.

Diagnostic

Controller fault:watchdog timeout or program error. Backplane communication failure:poor slot contact or chassis power fault. SD card error:card damage or file corruption. Cannot go to run mode:program fault or task configuration error.

Product Brief

Allen-Bradley 1756-L73 ControlLogix 5573 programmable automation controller,8MB user memory,USB programming and SD card backup,supports CIP EtherNet/IP integrated motion and large I/O capacity for complex factory and process automation control.