TM 5-6675-320-14
Table 4-26. HP-IB ERROR DISPLAYS AND POSSIBLE CAUSES - Cont
D i s p l a y o r P r i n t o ut
Possible Causes
HANDSHAKE TEST FAILURES - Cont
Example:
“HANDSHAKE FAILURE. IUT
Same as prior items (1)-(3) .
ACTIVE (LISTENER or
TALKER). (LISTENER or
TALKER) HAS ISSUED AN R4
DAV = 0
NRFD = 0
NDAC = 0
SHOULD BE:
DAV = 0
NRFD = 1
NDAC = 1
DATA TRANSFER FAILURES
“DATA WRITE ERROR- -DATA
WRITTEN WAS MORE THAN 5
WRITE ERRORS. PRESS
CONTINUE TO SEE MORE.
SHOULD HAVE BEEN
(1) Failure of HP-IB Interface data
registers on PCA A1.
(2) Failure of output data and control
l a t c h , m i c r o p r o c e s s o r , o r i n p u t
multiplexer on PCA A2.
“DATA READ ERROR--DATA READ
WAS MORE THAN 5 READ ERRORS.
PRESS CONTINUE TO SEE MORE.
SHOULD HAVE BEEN
Same as items (1) and (2) above.
4-247
(IN or OUT)"
