Morningstar RELAY DRIVER Manuel D'installation, D'utilisation Et D'entretien page 44

COM port and Address are specified. Also verify that all other programs
that use the serial port are closed. If the problem persists, try a different
cable and/or PC.
When the programming is complete, click Finish to return to the main
screen.
The LEDs on the Relay Driver will flash indicating that a power reset
is required. Remove power from the Relay Driver for a moment and then
reconnect. The LEDs should flash the normal start-up sequence.
The Relay Driver is now ready to be installed in the system. Section 4.0
explains how to mount the Relay Driver.
RELAY DRIVER 44 | P a g e