E.3
Date Code 20080918 Instruction Manual SEL-749M Relay
DeviceNet
Electronic Data Sheet
➤ Retrieve and modify relay settings
➤ Read and set time
➤ Monitor device status, trip/warning status, and I/O status
➤ Perform high-speed control
➤ Reset trip, target, and accumulated data, and retrieve events
history
The DeviceNet interface can be configured through the use of address and
data transmission rate switches. Indicators on the card at the back of the relay
show network status and network activity.
Electronic Data Sheet
Electronic Data Sheet (EDS) is a specially formatted file that includes
configurable parameters for the device and public interfaces to those
parameters. The EDS file contains information such as number of parameters;
groupings; parameter name; minimum, maximum, and default values; units;
data format; and scaling. This information makes possible user-friendly
configuration tools (e.g., RSNetWorx for DeviceNet or DeviceNet
Configurator from OMRON
®
) for device parameter monitoring, modification,
or both. The interface to the device can also be easily updated without revision
of the configuration software tool itself.
All the registers defined in the Modbus
®
Register Map (Table D.23) are
available as parameters in a DeviceNet configuration. Parameter names, data
ranges, and scaling; enumeration values and strings; parameter groups and
product information are the same as specified in the Modbus Register Map
defined in Table D.23. The parameter numbers are offset by a count of 100
from the register numbers.
The EDS file for the SEL-749M, SEL-749M
Rxxx.EDS, is located on the
SEL-749M Product Literature CD, or you can download the file from the SEL
website at www.selinc.com.
Complete specifications for the DeviceNet protocol are available on the Open
DeviceNet Vendor’s Association (ODVA) website www.odva.org. ODVA is an
independent supplier organization that manages DeviceNet specification and
supports the worldwide growth of DeviceNet.
Courtesy of NationalSwitchgear.com
To Next Page
Loading...
