4-4
BIT 4886 051010
.
FIGURE 4-2. VISA DRIVER START-UP
FIGURE 4-3. BIT 4886 CARD INITIALIZATION
USING VISA DRIVER
1. After initialization, proceed to PAR. 3.3.2 to calibrate the upgraded unit.
4.2.2
INITIALIZATION USING SCPI COMMANDS AND GPIB PORT
1. With the BOP power off, place the five address switches to the on position (see Figure 2-1
for switch location).
2. Insure a GPIB controller is connected to the BOP via the GPIB cable. Set BOP power to OFF
and set the address switches to the proper GPIB address to be used (refer to PAR 2.2.1, Fig-
ure 2-1, and Table 2-2 for addresses). Set BOP Power on; it may beep three times indicating
it is ready for initialization.
3. Using the GPIB interactive mode, set up the GPIB interface. For a National Instruments card,
it is done by the following steps.
A. Start the interactive GPIB program.
B. Type
ibfind DEVx
where x is the hex address of the BOP.
C. Type
ibwrt "*idn?"
D. Type
IBREAD 100
. The GPIB will show the identifier string of the BOP as:
KEPCO,
BOP 200-20
, with additional characters indicating the revision level of the firmware.
4. Send the password initialization string of:
SYST:PASS:CEN DEFAULT
.
5. Send the BOP configuration code. The configuration code format is VOLTAGE,CURRENT;
for example the 100 Volt, 1 Amp BOP 100-1M is identified as 100,1. The sequence to be
sent is:
DIAG:PST 100,1
.
