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2. *IDN? (query power supply for its identification string).
Power supply replies its identification string (TDK-LAMBDA,G…), refer to section 4.13, *IDN?
command for an example.
NOTE
Power supply ordered with an optional communication interface (i.e. IEEE, MODBUS TCP or
EtherCAT) is configured, by default, to optional communication interface. Baud rate is set to
115200, SCPI communication language (unless optional interface requires unique language such
as registers for MODBUS TCP or SDOs/PDOs for EtherCAT), address 6.
1.9.3 Set RS232 Communication Interface (Example)
power supply default communication interface is set to USB. Send the following
commands to the power supply to set RS232 communication interface.
1. INST:NSEL 6 (power supply with address 6 will receive commands).
2. SYST:INT RS232 (switch communication interface to RS232 interface).
NOTES
1. Following SYST:INT RS232 command, power supply communication interface immediately
switches to RS232. Execution time is ~25mS.
2. Power supply has to be re-addressed using INST:NSEL 6 command following communication
interface change prior sending additional commands.
1.9.4 Set 9600 Communication Baud Rate (Example)
power supply default baud rate is set to 115200. Send the following commands to the
power supply to set 9600 baud rate.
1. INST:NSEL 6 (power supply with address 6 will receive commands).
2. SYST:BAUD 9600 (switch baud rate to 9600).
NOTE
If baud rate is switched in USB communication interface, only multi-drop baud rate is affected.
If baud rate is switched in RS232/485 communication, remember to switch baud rate setting in PC
terminal software.
1.9.5 Set Power Supply Communication Address (Example)
power supply default address is set to 6. Send the following commands to the power
supply to set address to 10.
1. INST:NSEL 6 (power supply with address 6 will receive commands).
2. SYST:ADDR 10 (switch address to 10).
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