1756-L62

Technical specifications

Manufacturer

Allen-Bradley

Manufacturer part no.

1756-L62

Type

ControlLogix controller

Application

PLC controller

Used with

ControlLogix 1756 chassis

Controller family

ControlLogix 5560

Memory for data and logic

4 MB

I/O memory

478 KB

Back-up memory

CompactFlash card (optional, does not come with the controller)

Controller tasks

32 tasks; 100 programs/task; event tasks: all event triggers

Communication ports

1 port, RS-232 serial

Communication options

EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O, SynchLink, third-party process and device networks

Serial port communication

ASCII; DF1 full/half-duplex; DF1 radio modem; DH-485; Modbus via logic

Controller connections supported, max

250

Network connections, per network module

128 ControlNet (1756-CN2/B); 100 ControlNet (1756-CN2/A); 40 ControlNet (1756-CNB); 256 EtherNet/IP, 128 TCP (1756-EN2x); 128 EtherNet/IP, 64 TCP (1756-ENBT)

Controller redundancy

Full support except for motion applications

Integrated motion

Integrated Motion on the EtherNet/IP network; Sercos interface; analog options: encoder input, LDT input, SSI input

Programming languages

Relay ladder; structured text; function block; sequential function chart (SFC)

Clock support and memory retention at power-down

Battery

Status indicators

Six status indicators

Unconnected buffer defaults

10 (40, max)

Minimum programming software

Series A: RSLogix 5000 version 12.06.00 or later; series B: version 13.04.00 or later

Technical documents (1)

• Rockwell Automation publication 1756-UM001 (ControlLogix 5570 and 5560 controllers)

Key features

• 4 MB memory for data and logic
• Optional CompactFlash card for back-up memory
• Supports up to 250 controller connections
• Programs in ladder, structured text, function block and SFC
• Battery for clock and memory retention at power-down

About the Allen-Bradley 1756-L62

The Allen-Bradley 1756-L62 is a ControlLogix 5560 controller, listed by Rockwell as the ControlLogix 4 MB Memory Controller. Rockwell publication 1756-UM001 gives 4 MB of memory for data and logic, 478 KB of I/O memory, 32 tasks with 100 programs per task, and a maximum of 250 controller connections. It has one RS-232 serial port and supports relay ladder, structured text, function block and sequential function chart programming. Rockwell lists its lifecycle status as Discontinued.

What is the 1756-L62 used for?

The 1756-L62 runs the control program in a ControlLogix system and talks to other devices over EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus, Remote I/O and SynchLink through network modules. Its serial port supports ASCII, DF1 full/half-duplex, DF1 radio modem, DH-485 and Modbus via logic. Rockwell lists full redundancy support except for motion applications, and Integrated Motion on the EtherNet/IP network.

Lifecycle and successor

Discontinued.

Before you order

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

Check that the catalog number on the module label reads 1756-L62, and note the series letter and firmware revision, as the minimum RSLogix 5000 version differs between series A and series B. Send us a photo of the label if you want us to confirm the part.