[evlatests] monitor data lacunae

[Ken Sowinski]

In preparation for an ttempt to monitor samplers during generator
testing I had a look at sampler and antenna power plant monitor points.
There are many problems.

M302:
ea07-m302  does not respond at all.
The 48 volt voltage and current monitor points for the following
antennas return zero: 3, 9, 14, 18, 19, 20, 22, 24, 25.  ea14 is special
in that it returns 923 V rather than zero.


D30x:
The 8-bit temperature monitor returns zero for:
ea08-d301
ea13-d302
ea20-d304
ea24-d301

One 3-bit sampler of the pair in each module returns zero for:
ea13-d301  B
ea26-d303  A

All the Hittite 3-bit samplers lack temperature sensors.
These appear to be:
ea05-d302
ea06-d301
ea07-d302
ea08-d301
ea09-d301
ea10-d301
ea13-d302 -d303
ea21-d301
ea24-d301
ea26-d301
ea28-d302