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Allen-Bradley 1756-L55M22 ControlLogix Programmable Automation Controller

SKU 1756-L55M22

Disponibile

12-month warranty
Free returns within 30 days

Manufacturer: Allen-Bradley
Product No.: 1756-L55M22
Origin United States
Product Type: ControlLogix Controller
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 0.35 kg
Dimensions: 145 x 35 x 130 mm
Shipping port: Xiamen
Warranty: 12 months

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Quantità

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Product Description

Description

The Allen-Bradley 1756-L55M22 is a ControlLogix5555 programmable automation controller designed for high-performance industrial control and processing application tasks within a ControlLogix system chassis. The controller manages system execution, data logic, and communication functions across connected devices, utilizing nonvolatile memory capabilities alongside dedicated data and logic memory. Communication interfaces include an integrated RS-232 serial port for workstation connectivity and diagnostic interactions. Designed as part of the ControlLogix family, the 1756-L55M22 operates inside open-style chassis enclosures for process control, discrete control, and automated machinery installations.

Features

Provides 750 KB of data and logic memory along with 208 KB of I/O memory.
Supports nonvolatile memory functionality for program and data protection.
Features an integrated RS-232 serial communication port for serial connection and programming.
Mounts into any available slot of a ControlLogix chassis.
Equipped with front-panel LED status indicators including RUN, I/O, FORCE, RS232, BAT, and OK.
Features a three-position mode selection keyswitch (RUN, REM, PROG).

Applications

Industrial process control systems
Automated manufacturing machinery
Distributed I/O control architectures
Machine automation and monitoring

Technical Specifications

Attribute	Value
Model	1756-L55M22
Series	A
Data and Logic Memory	750 KB
I/O Memory	208 KB
Nonvolatile Memory	Yes
Backplane Current (5.1V DC)	1.23 A
Backplane Current (24V DC)	0.014 A
Power Dissipation	5.6 W
Thermal Dissipation	19.1 BTU/hr
Weight, approx.	0.35 kg (12.5 oz)
Operating Temperature	0 to 60 degC (32 to 140 degF)
Storage Temperature	-40 to 85 degC (-40 to 185 degF)
Relative Humidity	5 to 95% noncondensing
Operating Vibration	2 g @ 10 to 500 Hz
Operating Shock	30 g
Nonoperating Shock	50 g
Enclosure Type Rating	None, open style
Isolation Voltage	30V (continuous), Basic Insulation Type, RS232 to system
Programming Cable	1756-CP3 or 1747-CP3 serial cable
North American Temp Code	T4A
IEC Temp Code	T4
Intrinsically Safe	No
Replacement Battery	1756-BA1

Connections/Interfaces

Connector Pin	Function
Pin 1	CD (Data Carrier Detect)
Pin 2	RXD (Receive Data)
Pin 3	TXD (Transmit Data)
Pin 4	DTR (Data Terminal Ready)
Pin 5	GND (Common)
Pin 6	DSR (Data Set Ready)
Pin 7	RTS (Request to Send)
Pin 8	CTS (Clear to Send)
Pin 9	N/C (Not Connected)

Installation Guidelines

Ensure backplane power is removed or the area is known to be nonhazardous prior to inserting or removing the controller or connecting cables.
Discharge potential static by wearing an approved grounding wriststrap and touching a grounded object before handling the module.
Mount the equipment inside a suitably designed open-type enclosure complying with appropriate flame-retardant ratings and accessible only with a tool.
Connect the 1756-BA1 battery correctly prior to placing the controller in service.
Align the module circuit board with top and bottom chassis guides and slide into the chassis slot until fully engaged.
Limit custom serial cable lengths to a maximum of 15.2 m (50 ft) and attach the shield at both ends.

Compliance and Certifications

UL Listed Industrial Control Equipment (UL File E65584)
CSA Certified Process Control Equipment (CSA File LR54689C)
CSA Certified Process Control Equipment for Class I, Division 2 Group A, B, C, D Hazardous Locations (CSA File LR69960C)
European Union 2004/108/IEC EMC Directive (EN 61326-1, EN 61000-6-2, EN 61000-6-4, EN 61131-2)
C-Tick Australian Radiocommunications Act (AS/NZS CISPR 11)
European Union 94/9/EC ATEX Directive (EN 60079-15, Zone 2)

Shipping & Returns

Global Express Shipping

Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

FAQ

What memory capacity is provided by the module?

The module provides 750 KB of data and logic memory, 208 KB of I/O memory, and supports nonvolatile memory.

Which serial cables are compatible with the controller RS-232 port?

The controller connects using a 1756-CP3 or 1747-CP3 serial cable, or a custom cable limited to a maximum length of 15.2 m (50 ft).

What battery is required for backup power on this device?

The device uses a 1756-BA1 replacement battery or a 1756-BATM battery module.

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