1.
To force the REN line (U10 pin
11
and
12)
HIGH, send the HP-IB command: LOCAL
7
BASIC Program:
10 REMOTE
7
20
LOCAL
7
30
END
RUN
2.
To force the REN line LOW, send the HP-IB command: REMOTE
7
BASIC Program:
10 LOCAL
7
20
REMOTE
7
30
END
RUN
b. When the IFC (INTERFACE CLEAR) latch output at U8 pin
6
goes LOW, the HP-IB MCU tries
to clear the latch.
To check the IFC line (U8 pin
I),
use the following program.
BASIC Program:
10
ABORT10
7
RUN
This program outputs pulses on the IFC line
of
the HP-IB bus. The latch should output the same pul-
ses at
U8 pin
6
except when the latch output is LOW, the HP-IB MCU tries to clear the latch which
causes the output to go HIGH momentarily.
HP
5334B
-
Service
Manual
8-68
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