Technical data
May 2007
CA05001001E For more information visit: www.eaton.com
59
PLC, I/O & Communications Products
IT. Connect
Communication Adapters (D77D Series) — EtherNet/IP Adapter
Product Description
The Cutler-Hammer
®
 Intelligent Tech-
nologies (IT.) EtherNet/IP (D77D-EIP) 
from Eaton’s electrical business has 
greatly increased the functionality of 
Cutler-Hammer IT. communicating 
products, allowing monitoring and 
control for IT. I/O and IT. motor control 
devices. The adapter concentrates all 
data from these devices into a single 
EtherNet/IP node.
The EtherNet/IP Adapter is a slave 
device on EtherNet/IP.
To simplify the configuration of the 
D77D-EIP, a simple auto-configure 
button press sets the system up for 
default operation. This automatically 
configures the EtherNet/IP assemblies 
to the I/O system devices.
Application Description
In a typical EtherNet/IP Adapter appli-
cation, the D77D-EIP connects directly 
to EtherNet/IP, and resides in a system 
with IT. I/O and other communicating 
motor controls. The data from these 
IT. devices is assembled into input and 
output assemblies before being pre-
sented to EtherNet/IP.
Cat. No. D77D-EIP
Features, Functions and Benefits 
■ Communication to EtherNet/IP
consuming one address
■ Supports Boot P, DHCP and static 
IP addressing
■ 10/100 BaseT Connection
■ Provides for control of all IT. com-
municating devices connected to 
the network adapter
■ Single button press auto configures 
the gateway, setting up the system 
for default operation
■ Advanced configuration using 
CH Studio
■ Provides for backplane and inter-
connect cable connections to I/O 
modules and motor control 
products
■ Two independent ports for Plug-
and-Play connection to I/O
■ Powered from backplane
■ Isolated from EtherNet/IP
■ Status LEDs for EtherNet/IP and 
module health
■ Provides for configuration of I/O 
devices over EtherNet/IP
■ Small package size
■ DIN rail mountable
Standards and Certifications
Approvals
Table 90. Approvals/Certifications
Technical Data and Specifications
Table 91. Environmental Ratings Table 92. EtherNet/IP Specifications 
Description Specification
Electrical/EMC
ESD Immunity (IEC 61000-4-2) ± 8 kV air, ± 4 kV contact
Radiated Immunity (IEC 61000-4-3) 10V/m 80 – 1,000 MHz, 80% amplitude modulation @ 1 kHz
Fast Transient (IEC 61000-4-4) ± 2 kV supply and control, ± 1 kV communications
Surge (IEC 61000-4-5) ± 1 kV line-to-ground, ± 2 kV line-to-line
RF Conducted (IEC 61000-4-6) 10V, .15 – 80 MHz
Magnetic Field (IEC 61000-4-8) 30A/m, 50 Hz
Other Approvals
Ingress Protection Code IP20
Radiated and Conducted Emissions EN 5011 Class A
Agency Certifications UL 508, CUL (CSA C22.2 No. 14), CE (Low Voltage Directive),
Modbus Conformance Tested
Description Specification
Transportation/Storage
Temperature -58° – 176°F (-50° – 80°C)
Humidity 5 – 95% non-condensing
Operating
Temperature -13° –149 °F (-25° – 65°C)
Humidity 5 – 95% non-condensing
Altitude Above 6,600 ft. (2,000m) 
consult factory
Shock
(IEC 68-2-27)
15G any direction for 
11 mS
Vibration
(IEC 68-2-6)
5 – 150 Hz, 5G .7 mm 
maximum peak-to-peak
Pollution Degree 2
Description Specification
Connections 10/100 BaseT
I/O Size 504 bytes Input
504 bytes Output
Baud Ethernet 10/100 Megabit
Addressing Ethernet – Boot P, Static IP
or DHCP
Channels 2 Independent 
Channels










