Sel 751A - Features

G.2
SEL-751A Relay Instruction Manual Date Code 20100129
DeviceNet Communications
Features
Features
The DeviceNet Card features the following:
➤ The card receives the required power from the DeviceNet
network.
➤ Rotary switches let you set the node address and network data
rate prior to mounting in the SEL-751A and applying power.
Alternatively, the switches can be set to positions that allow for
configuration of these settings over the DeviceNet network,
utilizing a network configuration tool such as RSNetWorx for
DeviceNet.
➤ Status indicators report the status of the device bus and network
communications. They are visible from the back panel of the
SEL-751A as installed.
You can do the following with the DeviceNet interface:
➤ Retrieve metering data such as the following:
➢ Currents
➢ Voltages
➢ Power
➢ Energy
➢ Max/Min
➢ Analog Inputs
➢ Counters
➤ 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
➤ 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.