AB 1756-EWEB
AB 1756-EWEB
AB 1756-EWEB
AB 1756-EWEB
AB 1756-EWEB
AB 1756-EWEB
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  • Lifecycle status

    Discontinued
    Discontinued date: 2023-06-30
    Replacement category: Functional Replacement

1756-EWEB

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Allen-Bradley 1756-EWEB is a ControlLogix EtherNet/IP Enhanced Web Server Module for browser-based controller data access, custom web pages, messaging, email, time services, and sockets.
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Technical specifications for 1756-EWEB

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1756-EWEB
  • Product Family:
    ControlLogix
  • Product Type:
    ControlLogix EtherNet/IP Enhanced Web Server Module
  • Stock:
    1
  • Network:
    EtherNet/IP
  • Ethernet connector:
    One RJ45
  • Data rate:
    10/100 Mbps
  • TCP connections:
    64
  • CIP connections:
    128
  • CIP unconnected messages:
    128 plus 128
  • Socket services:
    Supported
  • SNMP:
    Supported
  • Duplicate IP detection:
    Supported from firmware revision 2.2
  • Backplane current at 5.1 V DC:
    700 mA
  • Backplane current at 24 V DC:
    3 mA
  • Power dissipation:
    3.7 W
  • Thermal dissipation:
    12.6 BTU/h
  • Isolation voltage:
    30 V continuous
  • Module location:
    Any ControlLogix chassis slot
  • Operating temperature:
    0 to 60°C
  • Storage temperature:
    -40 to 85°C
  • Relative humidity:
    5 to 95%, non-condensing
  • Dimensions:
    3.5 × 14 × 14.5 cm
  • Weight:
    0.24 kg
  • Tariff Code:
    8517623990
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Web Services Messaging Network Setup Application
  • Adds an embedded enhanced web server to a ControlLogix chassis
  • Provides browser data views plus custom-page capability
  • Supports email, time, XML, and socket services beyond ordinary bridge traffic

1756-EWEB is distinguished from a general EtherNet/IP bridge by the services hosted inside the module. Its web assets and service settings can therefore be as important as its IP address.

A successful replacement starts with an inventory of every page, data view, controller path, email action, time source, and external socket or XML consumer that depends on the module.

Before installation or migration, export the web content, record firmware and network settings, and confirm that the intended replacement supports every service used by the existing control project.

Availability, condition, price, and shipping time for 1756-EWEB are confirmed during quotation.

Allen-Bradley 1756-EWEB ControlLogix EtherNet/IP Enhanced Web Server Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Create controller data views for browser access
  • Store custom pages that reference controller information
  • Restore page files and controller paths together after replacement
  • Use controller-initiated email only with the retained mail configuration
  • Configure time services according to the original control-system design
  • Preserve socket and XML interfaces used by external applications
  • Restore the documented IP address, subnet, and gateway
  • Confirm module firmware and duplicate-address behavior
  • Validate browser, controller, and external-application access after commissioning
  • Browser-based monitoring of ControlLogix controller data
  • Custom production or maintenance web pages linked to controller tags
  • Controller email, time synchronization, XML, or socket integration services
Description
1756-EWEB combines a ControlLogix EtherNet/IP interface with an embedded web server for viewing and modifying controller data through standard browser-based pages.

Its official user manual covers controller data views, custom web pages, email initiated by control logic, time-server configuration, open sockets, and XML data exchange with external applications.

Before replacement, preserve the IP plan, firmware, web files, data-view configuration, email and time settings, socket services, chassis power allocation, and controller message paths.
Revisions

Revision Part #

Also known as

1756-EWEB Ser B
1756-EWEB/B, Series B, Rev B
Alternative Names
1756-EWEB 1756-EWEB/B Allen-Bradley 1756-EWEB Allen Bradley 1756-EWEB Rockwell Automation 1756-EWEB ControlLogix EWEB 1756-EWEB
Technical notes
1756-EWEB replacement requires archived web files, data views, firmware, IP settings, email, time, sockets, and controller paths; a standard Ethernet bridge cannot reproduce missing web-server services.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can 1756-EWEB be replaced by a standard ControlLogix Ethernet bridge?
Not when the application depends on its embedded web pages, email, XML, time-server, or socket functions. Inventory those services before evaluating any network-module replacement.
Will custom pages continue working after a 1756-EWEB replacement?
Only if the original web files, data views, controller references, IP settings, and enabled services are restored to compatible firmware. A standard Ethernet configuration does not recreate them.
Can 1756-EWEB modify controller data from a web browser?
The official user manual documents browser-based read and write access through enhanced web server data views. Access design and controller permissions should be reviewed before enabling changes.
Why might a replacement 1756-EWEB load but not show the expected pages?
Check that the custom web files and data-view configuration were restored, the controller paths are valid, browser access is permitted, and the module firmware and IP settings match the original.
Does 1756-EWEB support email initiated by controller logic?
Yes. The manual documents email capability, including messages initiated by the controller. Preserve recipient, server, trigger, and message settings before replacement.
Can 1756-EWEB exchange data with applications that do not use EtherNet/IP?
The manual documents XML data views and open socket TCP or UDP interfaces for external applications. Confirm the original application protocol and port settings before commissioning.
What should be compared before replacing 1756-EWEB with an engineered migration product?
Map every custom page, data view, email action, time service, XML exchange, socket connection, and controller path first; the replacement must reproduce the services actually used by the project.

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