Rockwell Automation Publication 1756-UM004D-EN-P - August 2022 9
Chapter 1 ControlLogix EtherNet/IP Network Device Overview
EtherNet/IP Network
Specifications
Table 1 - EtherNet/IP Communication Modules
Cat. No.
(1)
Description Media Communication Rate
Integrated Motion on
the EtherNet/IP
Network Axes, Max
1756-EN2F, 1756-EN2FK EtherNet/IP bridge, fiber Fiber
100 Mbps, no
auto-negotiation.
8
1756-EN2T
1756-EN2TK
EtherNet/IP bridge, copper Copper 10/100 Mbps 8
1756-EN2TP, 1756-EN2TPK EtherNet/IP bridge, PRP support, copper Dual Copper 10/100 Mbps 8
1756-EN2TPXT
ControlLogix-XT™, extended temperature
EtherNet/IP bridge, PRP support
Dual Copper 10/100 Mbps 8
1756-EN2TR, 1756-EN2TRK EtherNet/IP bridge, embedded switch, copper Dual copper 10/100 Mbps 8
1756-EN2TXT
ControlLogix-XT, extended temperature
EtherNet/IP bridge, copper, for extreme environments
Copper 10/100 Mbps 8
1756-EN2TRXT
ControlLogix-XT, extended temperature
EtherNet/IP bridge, embedded switch, copper
Dual copper 10/100 Mbps 8
1756-EN3TR, 1756-EN3TRK EtherNet/IP bridge, embedded switch, copper Dual copper 10/100 Mbps 128
1756-EN4TR,
1756-EN4TRK
EtherNet/IP bridge, embedded switch, copper Dual Copper
10/100 Mbps
1 Gbps
256
1756-EN4TRXT
ControlLogix-XT, extended temperature
EtherNet/IP bridge, embedded switch, copper
Dual Copper
10/100 Mbps
1 Gbps
256
1756-ENBT, 1756-ENBTK EtherNet/IP bridge, copper Copper 10/100 Mbps —
1756-EWEB Ethernet web server module Copper 10/100 Mbps —
(1) A catalog number ending in a K denotes a conformal coating.
Table 2 - ControlLogix EtherNet/IP Connections Specifications
(1)
Cat. No.
Connections
CIP™ Unconnected Messages (backplane +
Ethernet)
TCP
CIP
(2)
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
1756-EN4TR 512
1000 I/O,
528 messaging/HMI
256+256
1756-EWEB 64 128 128 + 128
(1) Includes the K conformal coating catalog numbers and the XT extreme environment catalog numbers.
(2) Except for the 1756-EN4TR, which has separate I/O and messaging/HMI CIP connections, these connections can be used for any combination of I/O and messaging/HMI.
Table 3 - ControlLogix EtherNet/IP Data Specifications
(1)
Cat. No.
Produced/Consumed Tags
Socket Services
Duplicate IP Detection
(starting revision)
Number of Multicast Tags,
Max
(2)
Unicast Available in RSLogix
5000® Software
1756-EN2F
32
Version 16.03.00 or later Yes
All Revisions
1756-EN2T Version 16.03.00 or later Yes
1756-EN2TP Version 24.00.00 or later Yes
1756-EN2TR Version 17.01.02 or later Yes
1756-EN3TR Version 18.02.00 or later Yes
1756-EN4TR Version 24.00.00 or later Yes
1756-ENBT Version 16.03.00 or later No Revision 3.3
1756-EWEB N/A Yes Revision 2.2
(1) Includes the K conformal coating catalog numbers and the XT extreme environment catalog numbers.
(2) Each controller can send a maximum of 32 multicast produced tags to one single consuming controller. If these same tags are sent to multiple consumers, the maximum number is 31.