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Confirm proper operation by connecting an IEEE-488 instrument to i the bus and
attempting to operate it with a program written in BASIC.
Here is an example procedure using an HP3478A digital voltmeter s and a short
BASIC program.
1. Connect the HP3478A DVM to the IEEE-488 bus connector Of this card on the
back of the PC with a standard IEEE-488 s cable. On the PCL-848B, the connector
is 25 pin D type defined by IEC-625 and a PCL-15488-2 IEC-625 to IEEE-488
cable must be used.
2. Set the device address of the HP3478A DVM to 23.
3. Turn on the HP3478A DVM and the PC.
4. Get into BASICA or GWBASIC environment.
5. Key in the following BASIC statements:
10
DEF SEG=&BD000
20
OUTPUT%=3 : ENTER%=6
30
ADDR%=23 'GP-IB address of up3478A
40
TMP$="F1" ~UP3478A DVM programming code
50
CALL OUTPUT%(ADDR%,TMP$)
60
FOR I=1 TO 10
70
D$=SPACE$(80)
80
CALL ENTER%(ADDR%,D$)
90
PRINT D$
100
NEXT I
110
END
6. Execute the program. It will display the 10 readings i measured by the HP3478A
DVM and thus confirm proper ~ operation.
If the system fails this test, check for these common problems:
1. The instrument requires a special terminator. Check the instruments instruction
manual and Section 3. of this manual.
2. The programming command syntax for the instrument may be incorrect. Check the
examples in the instrument manual.
3. Check all electrical connections.
If there is still any problem, contact your local sales representative for further
assistance.
CHAPTER 2 INSTALLATION
9
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