User Manual

1-51
4.12 Multi-unit Connection mode (RS485)
XLN3640 / XLN6024 / XLN8018 / XLN10014 can use RS485 to provide multi-
units series connection function for up to 30 units (If more than 10 units, please
add a 120Ω resistor terminator in the last unit as shown in the below figure. Turn
on the system after series connection is completed. Press  on
the main page and set CHAIN ON/OFF to ON (Series/Parallel connection will
be cancelled) and set each unit with a different Address (1 - 30). Then by using
USB connected to PC, multiple units can be controlled by using the commands
in “SERIES CONNECTION COMMAND LIST” section below.
SERIES CONNECTION COMMAND LIST
The series connection command used by all XLN series power supplies
use a carriage return (CR) character for termination of all ASCII strings. For
example, the system will respond with the corresponding value or string when
delivering the inquire command, or respond “OK” when delivering the setting
command. In case any errors happen, the system will respond with an error
message. (Please refer to ERROR RESPONSE LIST section).