Hi. I want to have remote connection with E4418 Power meter and i have some problems. i wanna have Serial RS232 Connection with the power meter. i have set the configurations and it is correct ( i have chosen "echo On" and when i send a command at RX pin, i get the same command at TX pin. the problem is that my commands are not applied by the power meter. for example when i send "*IDN?\n" i get nothing or when i send "SYSTem:LANGuage?" i get nothing. may u help me?