hi

Thanks for your replay

After your rpl i even tried with carriage return and Timeout. But still getting same thing as output. The following is the code 

s=serial('COM1','Baudrate',38400,'Timeout',10,'Terminator','LF')

set(s,'stopbits',1)

set(s,'databits',8)

fopen(s)

fprintf(s,'OIL TEMPERATURE')

fprintf(s,'\n')

fprintf(s,'OIL PRESSURE')

One more thing after executing the code am getting the output in display but the display is getting cleared shortly afterwards

hi noritake

i am using the module GU256x64D-3900 VFD module with firmware version-F333B2416. I am sending the serial data using RS-485 through matlab. Whatever the data  am sending through matlab am receving in display. The following below is my matlab code

s=serial('COM1','Baudrate',38400)

set(s,'stopbits',1)

set(s,'databits',8)

fopen(s)

fprintf(s,'OIL TEMPERATURE')

fprintf(s,'\n')

fprintf(s,'OIL PRESSURE')

Expexted output:

OIL TEMPERATURE

OIL pressure

Actual output what am getting:

OIL TEMPERATURE\nOIL PRESSURE