Specifications
February 2009
CA08102001E For more information visit: www.eaton.com
50-23
PLC, I/O & Communications Products
50
IT. Connect
Communication Adapters (D77D Series) — DeviceNet Adapter
Cat. No. D77D-DNA
Product Description
The Cutler-Hammer Intelligent 
Technologies (IT.) DeviceNet Adapter 
(D77D-DNA) from Eaton’s electrical 
business has greatly increased the 
functionality of IT. communicating 
products, allowing monitoring and 
control for IT. motor control devices. 
The adapter concentrates all data 
from these devices into a single 
DeviceNet node.
To simplify the configuration of the 
D77D-DNA, a simple auto-configure 
button press sets the system up for 
default operation. This automatically 
configures the DeviceNet I/O assem-
blies to the system devices. The data 
from these devices is assembled into 
a single input and output message.
Application Description
In a typical DeviceNet Adapter applica-
tion, the D77D-DNA connects directly 
to DeviceNet, and resides in a system 
with communicating motor controls. 
The data from these IT. devices is 
assembled into a single input and out-
put message before being presented 
to DeviceNet.
Features, Functions and Benefits 
■ Communication to DeviceNet 
consuming one DeviceNet MAC ID.
■ Provides for control of all IT. 
communicating devices connected 
to the gateway.
■ Manually set to MAC ID and baud 
rate; configuration using a software 
application is not required for 
normal operation.
■ 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 motor 
control products.
■ Provides one I/O DeviceNet message 
representing all connected devices.
■ Two independent ports.
■ Powered from backplane.
■ Isolated from DeviceNet.
■ Status LEDs for DeviceNet and 
module health.
■ Provides for configuration of I/O 
devices over DeviceNet.
■ Small package size.
■ DIN-rail mountable.
Standards and Certifications
Approvals
Table 50-30. Approvals/Certifications 
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),
ODVA Conformance Tested










