1756-L83EK

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1756-L83EK

Type

ControlLogix controller

Application

PLC controller

Used with

ControlLogix 1756 chassis

Controller tasks

32 tasks, including a combination of one continuous, periodic, and event tasks 1000 programs/task

Built-in communication ports

1-port USB, Embedded Ethernet port

USB port communication

USB 2.0, Full speed (12 Mbps), Programming, configuration, firmware update, and online edits only

Ethernet performance

10/100/1000 Mbps

I/O Capacity (Class 0/1)

128,000 without CIP Security™ 40,000 with integrity 20,000 with integrity and confidentiality

Communication options

EtherNet/IP™, ControlNet®, DeviceNet®, Data Highway Plus™, Remote I/O, SERCOS, Third-party process and device networks

OPC UA nodes supported max

1200 nodes

Network connections per network

ControlLogix 5580 Controllers front EtherNet/IP port. See ‘EtherNet/IP nodes supported, max’ in this table. 1000 I/O; 528 EtherNet/IP; 512 TCP (1756-EN4TR or variant rated for harsh environments) 256 EtherNet/IP; 128 TCP (1756-EN2x or variant rated for harsh environments) 128 EtherNet/IP; 64 TCP (1756-ENBT or variant rated for harsh environments) 100 ControlNet (1756-CN2/A or variant rated for harsh environments) 40 ControlNet (1756-CNB/D, 1756-CNB/E or variant rated for harsh environments) 128 ControlNet (1756-CN2/B or variant rated for harsh environments)

Integrated motion

SERCOS interface beginning with Studio 5000 Logix Designer® application version 31.00.01 or later, Analog options (encoder input, LDT input, SSI input) beginning with Studio 5000 Logix Designer application version 31.00.01 or later, Integrated Motion on the EtherNet/IP network

Controller redundancy

Full support with Studio 5000 Logix Designer application version 33.00.02 or later

Programming languages

Relay ladder logic (RLL), Structured text, Function Block Diagram, Sequential function chart (SFC)

Standard memory

10 MB

Digital I/O max

128,000

Analog I/O max

4000

Nonvolatile memory storage

4 GB Secure Digital (SD) card (1784-SD4), ships pre-installed in the controller

Energy storage module

Embedded in controller, non-removable

Number of power cycles

80,000

Current draw @ 1.2V DC

5.0 mA

Current draw @ 5.1V DC

1.20 A

Power dissipation

6.2 W

Thermal dissipation

21.2 BTU/hr

Isolation voltage

50V (continuous), Basic Insulation type, USB port to backplane, Ethernet port to backplane, and USB port to Ethernet port, Compliant and tested according to IEC/UL 61010-1

Weight approx

0.394 kg (.868 lb)

Slot width

1

Module location

Chassis-based, any slot

Technical documents (1)

• Rockwell Automation technical data 1756-TD001

Key features

• Embedded Ethernet port at 10/100/1000 Mbps
• USB 2.0 port for programming and firmware update
• 4 GB SD card ships pre-installed
• Programmable in ladder, structured text, FBD and SFC
• Occupies one slot in a 1756 chassis

About the Allen-Bradley 1756-L83EK

The Allen-Bradley 1756-L83EK is a ControlLogix 5580 Controller, described by Rockwell Automation as having 10 MB user memory, a USB port, a 1 gigabit embedded Ethernet port, 100 EtherNet/IP devices and a 4 character alpha/numeric display, conformally coated. Rockwell's technical data 1756-TD001 lists 32 tasks, 128,000 digital I/O and 4000 analog I/O maximum. It also gives a 4 GB SD card (1784-SD4) pre-installed, an approximate weight of 0.394 kg and a current draw of 1.20 A at 5.1V DC. Rockwell names the 1756-L83EXT as its Direct Replacement.

What is the 1756-L83EK used for?

The 1756-L83EK runs the control program in a chassis-based ControlLogix system and can be fitted in any slot of the listed 1756 chassis. Rockwell lists communication options including EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O and SERCOS. It also lists integrated motion, and full controller redundancy support with Studio 5000 Logix Designer version 33.00.02 or later.

Lifecycle and successor

Phased out.

OEM successor: 1756-L83EXT

Before you order

What to photograph or confirm so the right unit is quoted.

Check that the catalog number on the label reads 1756-L83EK, and note the series letter and firmware revision shown there. Send a photo of the label if you need the part confirmed.