B.3
Date Code 20080213 Instruction Manual SEL-351A Relay
Firmware Upgrade Instructions
Relay Firmware Upgrade Instructions
please contact your customer service representative or the
factory for details on getting the SEL-5010 Relay Assistant
software.
➤ Your relay instruction manual
Upgrade Procedure
A. Prepare the Relay
Step 1. If the relay is in use, follow your company practices for
removing a relay from service.
Typically, these include changing settings, or disconnecting
external voltage sources or output contact wiring, to disable
relay control functions.
Step 2. Apply power to the relay.
Step 3. From the relay front panel, press the {SET} pushbutton.
Step 4. Use the arrow pushbuttons to navigate to
PORT.
Step 5. Press the {SELECT} pushbutton.
Step 6. Use the arrow pushbuttons to navigate to the relay serial port
you plan to use (usually the front port).
Step 7. Press the {SELECT} pushbutton.
Step 8. With
SHOW selected, press the {SELECT} pushbutton.
Step 9. Press the {Down Arrow} pushbutton to scroll through the port
settings; write down the value for each setting.
Step 10. At the
EXIT SETTINGS? prompt, select Yes and press the
{SELECT} pushbutton.
Step 11. Connect an SEL Cable C234A (or equivalent) serial
communications cable to the relay serial port selected in Step 6
above.
B. Establish a Terminal Connection
To establish communication between the relay and a personal computer, you
must be able to modify the computer serial communications parameters (i.e.,
data transmission rate, data bits, parity) and set the file transfer protocol to
1K Xmodem or Xmodem protocol.
Step 1. Connect a serial communications cable to the computer serial
port:
a. Check the computer for a label identifying the serial
communications ports.
b. Choose a port and connect an SEL Cable C234A (or
equivalent) serial communications cable to the personal
computer serial port.
If there is no identification label, connect the cable to any
computer serial port. Note that you might later change this
computer serial port to a different port in order to establish
communication between the relay and the computer.
Step 2. Disconnect any other serial port connection(s).
Courtesy of NationalSwitchgear.com
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