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Allen-Bradley 1756-en2tr/1756-EN2TR Communication Modules
With optical interface No
Supporting protocol for TCP/IP Yes
Supporting protocol for DeviceNet No
Supporting protocol for other bus systems No
Redundancy Yes
IO link master No
Supporting protocol for DeviceNet Safety No
Supporting protocol for EtherNet/IP Yes
Power dissipation 5.1 W
Thermal dissipation 17.4 BTU/h
Enclosure type rating None (open-style)
Ethernet ports 2 Ethernet RJ45 Category 5
CIP unconnected messages 128 + 128 (backplane + Ethernet)
Current draw 1 A @ 5.1V DC, 3 mA @ 24V DC
Ethernet cable 802.3 compliant shielded or unshielded twisted pair
Wiring category 2 - on Ethernet ports, 3 - on USB ports
Communication rate 10/100 Mbps
Connections supported, max TCP: 128, CIP: 256 (CIP connections can be used for all explicit or all implicit applications. for example, a 1756-ENBT module has a total of 128 CIP connections
that can be used for any combination of connections.)
Isolation voltage 30V (continuous), Basic Insulation Type, Ethernet to Backplane, USB to Backplane, and USB to Ethernet(Applies only to these modules/series: 1756-EN2T/D, 1756-EN2TR/C,1756-EN3TR/B),
Type tested at 980V AC for 60 s,Supporting protocol for LON No,
Supporting protocol for ASI No,Supporting protocol for PROFIBUS No,
Supporting protocol for CAN No,Supporting protocol for INTERBUS No,
Supporting protocol for KNX No,Supporting protocol for Modbus No,
Supporting protocol for Data-Highway No,Supporting protocol for SUCONET No,
With potential separation No,Supporting protocol for SERCOS No,
Supporting protocol for INTERBUS-Safety No,Radio standard Bluetooth No,
Radio standard Wi-Fi 802.11 No,Supporting protocol for AS-Interface Safety at Work No,
Supporting protocol for Foundation Fieldbus No,Supporting protocol for PROFINET CBA No,
Supporting protocol for PROFINET IO No,Supporting protocol for PROFIsafe No,
Supporting protocol for SafetyBUS p No,Radio standard GPRS No,
Radio standard GSM No,Radio standard UMTS No,
Slot width 1,ATEX temp code T4,
For these requirements Select this interface
Control I/O modules and drives
Act as an adapter for I/O on remote EtherNet/IP links
Communicate with other EtherNet/IP devices (messages and HMI)
Bridge EtherNet/IP links to route messages to devices on other networks
1756-EN2F, 1756-EN2FK
1756-EN2T, 1756-EN2TK, 1756-EN2TXT,
1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT,
1756-EN2TR, 1756-EN2TRK, 1756-EN2TRXT,
1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT,
1756-ENBT, 1756-ENBTK
Support Device Level Ring (DLR) and linear topologies 1756-EN2TR, 1756-EN2TRK, 1756-EN2TRXT,
1756-EN3TR, 1756-EN3TRK,
1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT,
Support Parallel Redundancy Protocol (PRP) 1756-EN2TP, 1756-EN2TPK, 1756-EN2TPXT,
1756-EN4TR(1) , 1756-EN4TRK (1) , 1756-EN4TRXT(1),
(1) 1756-EN4TR supports PRP with revision 4.001 and higher firmware.
Support redundant adapters (2)
(2) Redundant adapters require version 3.x and higher firmware.
1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT,
Provide control in environments where temperatures range from -25...+70 C (-13...+158 F)
1756-EN2TPXT,
1756-EN2TRXT,
1756-EN2TXT,
1756-EN4TRXT,
Secure access to a control system from within the plant network 1756-EN4TR, 1756-EN4TRK, 1756-EN4TRXT
Table 1 - ControlLogix EtherNet/IP Connections Specifications (1)
(1) There are 1000 CIP™ I/O connections and 528 CIP messaging connections.
Cat. No. Connections CIP Unconnected Messages
(backplane + Ethernet)TCP CIP (2)
(2) CIP connections can be used for all explicit or all implicit applications. For example, a 1756-ENBT module has a total of 128
CIP connections that can be used for any combination of connections.
1756-ENBT 64 128 64 + 64,
1756-EN2F 128 256 128 + 128,
1756-EN2T 128 256 128 + 128,
1756-EN2TP 128 256 128 + 128,
1756-EN2TR 128 256 128 + 128,
1756-EN3TR 128 256 128 + 128,
