KEPCO BIT 4886 Operator Manual - Manual (Page 66)

A-4
BIT 4886 120413
A.8 *OPT? — OPTIONS QUERY
*OPT?
Syntax: *OPT?
Returns string determined by power supply model.
Description: Causes the power supply to return an ASCII string which defines the functionality of the power
supply. The functionality is defined as follows:
A.9 *RCL — RECALL COMMAND
*RCL
Syntax: *RCL <integer> (1 to 99)
Description: Restores power supply to previously defined levels of output voltage, output current and trig-
gers. This command selects one of the 99 power supply memory locations, each of which stores val-
ues for output current, and output voltage and trigger levels. Executing a *RCL recalls the previously
defined trigger settings from memory and places them in the trigger control section of the BIT 4886.
Executing a second *RCL will cause the values in the trigger control section to be moved to the bit
4886 output channel, allowing the power supply to operate with the recalled trigger information. The
following parameters are affected by *RCL:
VOLT:TRIG, CURR:TRIG, and FUNC:MODE:TRIG .
A.10 *RST — RESET COMMAND
*RST
Syntax: *RST
Description: Resets power supply to the power on default state. The power supply output set to off (see
DIAG:OUTP, Table 4-5, to establish the “off” state parameters) and the power supply is programmed to
the power on values of the following parameters: CURR[:LEV][:IMM] = 0, VOLT[:LEV][:IMM] = 0,
MODE = VOLT. If the power supply is in either an overvoltage or overcurrent state, this condition is
reset by *RST. After sending *RST it is necessary to send OUTPUT ON for programmed values to
appear at the output. The *RST command always returns the mode to Voltage and the range to auto-
matic.(See example, Figure A-1.)
A.11 * SAV — SAVE COMMAND
*SAV
Syntax: *SAV <integer> (1 to 99)
Description: Saves the present state of output voltage, output current and trigger values, to the specified
memory location. This command stores the present state of the power supply to one of 99 memory
locations in Flash Memory (see PAR. 4.7.4). The following parameters are stored by *SAV:
VOLT:TRIG, CURR:TRIG, and FUNC:MODE:TRIG. The stored values can be restored by the *RCL
command.
A.12 *SRE — SERVICE REQUEST ENABLE COMMAND
*SRE
Syntax: *SRE<integer> where <integer> = value from 0 - 255 per Table A-3, except bit 6 cannot be pro-
grammed.
Description: Sets the condition of the Service Request Enable register. The Service Request Enable register
determines which events of the Status Byte Register are summed into the MSS (Master Status Sum-
mary) and RQS (Request for Service) bits. RQS is the service request bit that is cleared by a serial
poll, while MSS is not cleared when read. A “1” (1 = set = enable, 0 = reset = disable) in any Service
Request Enable register bit position enables the corresponding Status Byte bit to set the RQS and
MSS bits. All the enabled Service Request Enable register bits then are logically ORed to cause Bit 6
of the Status Byte Register (MSS/RQS) to be set. Related Commands: *SRE?, *STB?. (See exam-
ple, Figure A-1.)
STRING DATA MEANING
CAL Support for CALibrate is present.
RL1 Commands sent over GPIB cause unit to enter remote mode (except for MEASure).
MEM Indicates the number of memory steps supported.
LST Indicates the number of LIST steps supported.