Allen-Bradley 1756-L71 GuardLogix 5570 Controller

Availability: 4 left in stock

DescriptionThe Allen-Bradley 1756-L71 GuardLogix 5570 is a high-performance programmable automation controller designed for integrated standard and safety control within the...

SKU: 1756-L71

Manufacturer: Allen-Bradley
Product No.: 1756-L71
Product Type: PLC Controller
Product Origin: USA
Payment:T/T, Western Union
Weight: 400g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Allen-Bradley 1756-L71 GuardLogix 5570 is a high-performance programmable automation controller designed for integrated standard and safety control within the ControlLogix platform. This controller combines standard automation logic and functional safety in a single architecture, allowing both applications to execute within the same chassis while remaining logically independent. The conformal coating provides enhanced protection against corrosive atmospheres, meeting Severity Level G3 per ANSI/ISA 71.04-2013 and Severity Level C4 per IEC 60721-3-5:2018.

Features

Integrated standard and safety control platform
2 MB standard user memory and 1 MB dedicated safety memory
Supports up to 128,000 digital I/O and 4,000 analog I/O
Up to 500 controller communication connections
Integrated motion support over EtherNet/IP
Conformal coating for harsh industrial environments
Energy Storage Module (ESM) replaces traditional batteries for data retention

Applications

Water/Wastewater: Chemical dosing and effluent valve control
Oil/Gas/Petrochemical: Pressure loop management and burner gas-feed systems
Food/Beverage: PID-based temperature control for mixing and cooking
Power Generation: Steam governor actuation and cooling tower fan management

Technical Specifications

Model	1756-L71
User Memory	2 MB
Safety Memory	1 MB
I/O Memory	0.98 MB
Non-volatile Memory	1 GB (SD Card)
Max Digital I/O	128,000
Tasks	32 (31 Standard, 1 Safety)
Current Draw (1.2V DC)	5 mA
Current Draw (5.1V DC)	800 mA
Operating Temperature	0 degC to +60 degC
Storage Temperature	-40 degC to +85 degC

Installation Guidelines

The controller installs into any slot of a 1756 ControlLogix chassis.
Use the provided plastic keying system to prevent incorrect module placement in the chassis.
Ensure the Energy Storage Module (ESM) is properly seated; the controller does not use traditional batteries.
When using an SD card for non-volatile storage, insert with the beveled corner facing up and contacts on the right until it clicks.
Maintain proper ventilation within the cabinet to stay within the 0 to 60 degC operating range.
Always power down the chassis before inserting or removing the controller module to prevent electrical damage.

FAQ

What are the memory capacities?

The 1756-L71 features 2 MB of user memory and 0.98 MB of I/O memory, with 1 GB of non-volatile storage provided by the pre-installed SD card.

Does it require a battery?

No. The 1756-L71 utilizes an Energy Storage Module (ESM) to preserve controller memory during power interruptions, eliminating the need for traditional batteries.

Does it have an embedded Ethernet port?

No. The controller features a USB 2.0 port for local programming and maintenance. Communication with EtherNet/IP, ControlNet, or DeviceNet networks requires a dedicated communication bridge module in the chassis.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.