Register Definitions B
E6198B Switch/Load Unit User Manual B-65
Instrument Relay 9-16 (W)
Base + 23
h
(35
10
):
Agilent E8782A 24-Instrument, 40-Measurement Matrix Card
For relays, writing a 1 closes the relay, writing a 0 opens the
relay. Register read back for the relay states is not provided.
Thus, state tracking must be done in software.
Card Type (R) Base + 0
h
Returns Instrument matrix card type:
Instrument matrix card without auxiliary returns a card type of
6610 :(ddddddd=1000010)
Instrument matrix card with auxiliary returns a card type of
6710 :(ddddddd=1000011)
Card Configuration (R) Base + 1
h
Instrument matrix card configuration and firmware revision
(FWR) register. Initial firmware revision = 0h
Status and Control (R/W) Base + 2
h
This register reads back the card's status. It can set the state of
DAC1Rly, DAC2Rly and GndRly relays. I can also be used to
Reset and Open All Relays (OAR).
Read Only:
Bits76543210
Write
Inst
16
Inst
15
Inst
14
Inst
13
Inst
12
Inst
1
Inst
10
Inst
9
Bits76543210
Read
0ddddddd
Bits 7 6 5 43210
Read
FWR3FWR2FWR100000
Bits76543210
Read
Busy~ 0 OAR 0 DA2Rly DAC1Rly GndRly Reset
Write X X OAE X DAC2Rly DAC1Rly GndRly Reset
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