A-2
BHK-MG (OPR) 032816
A.5
*ESR? — EVENT STATUS REGISTER QUERY
*ESR?
Syntax
:
*ESR?
Return value: <integer> (Value = contents of Event Status register as defined in Table A-2.)
Description:
Reads the Standard Event Status register, clearing the register at the same time.
The Standard
Event Status register bit configuration is defined in Table A-2 (1 = set, 0 = reset). The error bits listed in
Table A-2 are also related to error codes produced during parsing of messages and to errors in the
power supply (see PAR. B.81). Related Commands: *CLS, *ESE, *OPC. (See example, Figure A-1.)
A.6
*IDN? — IDENTIFICATION QUERY
*IDN?
Syntax
:
*IDN?
Return value: Character string
Description:
Identifies the instrument.
This query requests identification. The power supply returns a string which
contains the manufacturer name, the model, the serial number and the firmware level. The character
string contains the following fields: <Manufacturer>, <Model>-<Voltage>-<Current> <Calibration
Date>,<Serial number>,<Firmware revision> where: <Manufacturer> = KEPCO, <Model> = BHK,
<Voltage> is Eo
MAX
, <Current> is Io
MAX
) <Calibration Date> is up to 10 characters entered during
calibration (recommended is month, day year: MM-DD-YYYY), <Serial number> E123456 is typical,
<Firmware revision>=Vn.m (n.m revision, e.g, 7.0) (See example, Figure A-1.)
A.7
*OPC — OPERATION COMPLETE COMMAND
*OPC
Syntax
:
*OPC
Description:
Causes power supply to set status bit 0 (Operation Complete) when pending operations are
complete
This command sets Standard Event Status Register bit 0 (see Table A-2) to “1” when all pre-
vious commands have been executed and changes in output level have been completed. This com-
mand does not prevent processing of subsequent commands, but bit 0 will not be set until all pending
operations are completed. (1 = set = enable function, 0 = reset = disable function). (See example, Fig-
ure A-1.) As an example, the controller sends command(s), then sends *OPC. If controller then sends
*ESR?, the power supply responds with either a “0” (if the power supply is busy executing the pro-
grammed commands), or a “1” (if the previously programmed commands are complete). (See exam-
ple, Figure A-1.)
A.8
*OPC? — OPERATION COMPLETE QUERY
*OPC?
Syntax
:
*OPC?
Return value: <1> (ASCII) placed in output queue when power supply has completed operation.
Description:
Indicates when pending operations have been completed.
When all pending operations are com-
plete (all previous commands have been executed and changes in output level have been completed)
a “1” is placed in the Output Queue. Subsequent commands are inhibited until the pending operations
are completed. *OPC? is intended to be used at the end of a command line so that the application pro-
gram can monitor the bus for data until it receives the “1” from the power supply Output Queue. (See
example, Figure A-1.)
A.9
*RCL — RECALL COMMAND
*RCL
Syntax
:
*RCL <integer> (1 to 40)
Description:
Restores power supply to previously defined levels of output voltage, output current, overvolt-
age protection, and overcurrent protection.
This command selects one of the 40 power supply
memory locations, each of which stores values for output current, output voltage, overvoltage protec-
tion, and overcurrent protection. The following parameters are affected by *RCL: CURR[:LEV][:IMM]
VOLT[:LEV][:IMM] CURR:PROT[:LEV] VOLT:PROT[:LEV]. (See example, Figure A-1.)
Summary of Contents for BHK 1000-0.2MG
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Page 101: ...BHK MG OPR 032816 3 55 FIGURE 3 20 SERIES AUTOMATIC CONFIGURATION ...
Page 109: ...BHK MG OPR 032816 3 63 FIGURE 3 23 PARALLEL AUTOMATIC CONFIGURATION ...
Page 114: ...3 68 BHK MG OPR 032816 FIGURE 3 25 PARALLEL MASTER SLAVE CURRENT MODE CONFIGURATION ...
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