83-507-5002 Rev. B
7.6.6 Acknowledge
The power supply acknowledges received commands by returning an “OK” message. If an error
is detected the power supply will return an error message. The rules of checksum also apply to
the acknowledge.
7.6.7 Error message
If an error is detected in comm and or query, the power supply will respond with an error mes-
sage. Refer to Section 7.7 for details.
7.6.8 Backspace
The backspace character (ASCII 8) clears the last character sent to the power supply.
7.7 ERROR MESSAGES The power supply will ret urn error messages for illegal commands and illegal programming pa-
rameters. Refer to Table 7-1 for prog ramming error messages and Table 7-2 for command er ror
messages.
Table 7-1: Programming error messages
Error
Code Description
E01 Returned when program voltage (PV) is programmed above acceptable range.
Example: PV above ‘105% of supply rating’ or PV above 95% of OVP setting’.
E02 Returned when programming output voltage below UVL setting.
E04 Returned when OVP is programmed below acceptable range.
Example: OVP less than “5% of supply voltage rating’ plus ‘voltage setting’.
E06 Returned when UVL is programmed above the programmed output voltage.
E07 Returned when programming the Output to ON during a fault shut down.
Table 7-2: Commands error messages
Error
Code Description
C01 Illegal command or query
C02 Missing parameter
C03 Illegal parameter
C04 Checksum error
C05 Setting out of range
7.8.1 General guide
1. Any command or argument may be in capital letters or small letters.
2. In commands with an argument, a space must be between the command and the argument.
3. For any command that sets a numeric value, the value may be up to 12 characters long.
4. Carriage Return: If the CR character (ASCII 13) is received by itself, the power supply will
respond with “OK” and CR.
7.8.2 Command set categories
1. Initialization control
2. ID control
3. Output control
4. Status control