Instruction manual

6.3.4 RS232 Commands

Following section deals with the commands set for RS232 interface.

It specifies the syntax of each command, which reads the status of power supply or

configures it to the requirements of users.

NOTE: The command uses following notations

<SP> = Indicates Null or space character (20H)

<AARD> = Indicates Arbitrary ASCII Response Data

<NR.DATA> = Indicates Numeric Data

<EOS> = Indicates End of string character (ODH)

1. Command : READ? <EOS>

Description: Read Output Voltage and Current Query.

Function: This command reads back the output voltage & current of the unit in

<AARD> format. The units for Voltage and Current are VOLTS and AMPS respec-

tively. If the unit is in CV (Constant Voltage) or in CC (Constant Current) mode of

operation, this status is also indicated on console. The entire response is terminated

with <EOS> byte.

For example if the Query sent is

READ? <EOS>

Then the response can be as follows:

+14.99V 00.02A CV<EOS> or +14.00V 10.00A CC<EOS>

2. Command : VOLT<SP><NR.DATA><EOS>

Description: Set the Output Voltage for that Channel(s).

Function: This command sets the Output Voltage of the Power Supply output with

the <NR.DATA> given in the command in Volts. The input VOLTAGE data is in Nu-

meric Data format.

For example to set 10.5 Volts then send the command as

VOLT 10.50<EOS>

3. Command : CURR<SP><NR.DATA><EOS>

Description: Set the Output Current Limit for that Channel(s).

Function: This command sets the Output Current of the Power Supply output with

the <NR.DATA> given in the command in AMPS. The input CURRENT data is in

Numeric Data format.

For example to set 2.3 Amps send the command as

CURR 02.30<EOS>