1756-CN2R Allen-Bradley ControlLogix Communication Module
Technical specifications
Manufacturer: Allen Bradley
Condition：New with Original Package
Product Type: Communication Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
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Product Description
Configured for Ethernet communication in ControlLogix systems, the Allen-Bradley 1756-CN2R (1756-CN2R ControlLogix Communication Module) provides network connectivity between the ControlLogix backplane and connected Ethernet devices.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1756-CN2R |
| Brand | Allen-Bradley |
| Module Type | ControlLogix Communication Module |
| Communication Protocols | EtherNet/IP; Modbus TCP |
| Ethernet Ports | Dual port |
| Ethernet Speed | 10/100 Mbps |
| VLAN Support | Port-based VLANs |
| Operating Voltage | 24 VDC from ControlLogix backplane |
| Backplane Current, 5 VDC | 0.45 A max |
| Backplane Current, 24 VDC | 0.05 A max |
| Power Consumption | 2.4 W typical; 3.0 W max |
| Operating Temp | 0 deg C to 60 deg C |
| Storage Temp | -40 deg C to 85 deg C |
| Humidity | 5% to 95%, non-condensing |
| Dimensions | 118 mm x 43 mm x 94 mm |
| Weight | Approx. 0.35 kg |
| Protection Rating | IP20 |
| Origin | Not specified in supplied data |
| Certifications | CE, UL, CSA |
EtherNet/IP and Backplane Communication
The module transfers network data between Ethernet-connected devices and the ControlLogix backplane. Dual Ethernet ports support network connectivity and can be used within redundant network configurations. The supplied data specifies 10/100 Mbps Ethernet operation and port-based VLAN support.
For Allen-Bradley ControlLogix installations, the backplane current values define the module's electrical load on the chassis power system. The specified maximum values are 0.45 A at 5 VDC and 0.05 A at 24 VDC.
Frequently Asked Questions
Q: What Ethernet speed does the 1756-CN2R support?
A: The supplied specifications identify 10/100 Mbps Ethernet communication.
Q: What is the maximum specified power consumption?
A: The specified maximum power consumption is 3.0 W, with 2.4 W listed as typical.
Q: What environmental temperature range is specified?
A: The operating range is 0 deg C to 60 deg C. The storage range is -40 deg C to 85 deg C.
Field Installation Guidelines
Install the module in a compatible ControlLogix chassis and verify that the available backplane power supports the specified current load. Secure the module according to the chassis installation procedure.
Use suitable Ethernet cabling and maintain physical separation from high-voltage or high-current conductors where required by the installation environment. Terminate cable shields and protective earth connections according to the plant grounding design and applicable electrical standards.
Before energizing the system, verify Ethernet connections, network addressing, controller configuration, and module compatibility. Do not exceed the specified environmental limits during operation or storage.
Other Attributes
- Series: Allen-Bradley ControlLogix
- Country of Origin: USA
- Lead Time: In Stock, 2 Working Days
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