HP 8647A - Modulation Input (High or Low)

Example: Generate a Service Request for External
Modulation Input
(High or Low)
18 I:IIJTPI-IT 71'3; ":STHT: QIJES: tKC1: Et433 3"
:38 iIil-lTPl)T 714; ll+:;RE ::;I1
48 IF SPIIlLL (7 1'3 :I THE14 FFF: 1 t.IT II Ext. .
t$:ld. 1 rlpijt. Hi qh ...'L~J
Cl&. PlZt. elj
58 IIILlTPlJT 71'3; "+lI:LS"
ceJ8 Et.jD
20 IIII-ITF'I-IT 71'3; "STFIT: QIJES: EHHB 12:8"
Line 10
Enables bits 0 and 1 (decimal equivalent 3) in the
MODulation register. Enabling these bits masks other
bits in the MODulation register from reporting their
status in the summary bit to QUEStionable.
Enables bit
7 (decimal equivalent 128) in the
QUEStionable register. Enabling this bit masks other
bits in the QUEStionable register from reporting their
status in the summary bit to STATUS.
Enables bit
3 (decimal equivalent 8) of the STATUS
register. Enabling
this bit masks other bits from
reporting.
Uses the HP Basic command, SPOLL, (Serial
Poll)
to see if the service request bit is reporting any
interrupts.
Clears
all status registers. Clearing the status registers
is not absolutely necessary, but is used here because
of the unknown state of the instrument.
Line 20
Line
30
Line 40
Line 50
2-10 HP-IB Programming