Thruline RF Power Meter, Model 4421
33
Figure
15
Revision History Word Format
Self Test
(J0)
W
ritable Store
(W
x x x x x x)
Revision History Word (U2) —
The format of the revision history word is shown in
Figure
15
.
Function
Initiates a hardware and software test.
Remarks
Results are stored in the U1 status word (see
"Status
(Ux)" on page 32
).
“J0” must be sent each time before reading the result.
Function
Storage for six bytes of ASCII data.
Remarks
Data stored is lost when the 4421 is turned off.
Data is sent back as part of the U2 status word
