B-58
E6198B Switch/Load Unit User Manual
B
Register Definitions
•
Reset:
0 causes no change, 1 causes board reset and
triggers the relay timer. Clears itself afterward.
•
GndRly:
0 opens relay from Inst2 (DMM Lo) to System
Gnd (default), 1 closes relay from Inst2 (DMM Lo) to
System Gnd
•
DAC1Rly:
0 opens relay from Inst1 (DMM Hi) to DAC1
(default), 1 closes relay from Inst1 (DMM Hi) to DAC1
•
DAC2Rly:
0 opens relay from Inst1 (DMM Hi) to DAC2
(default), 1 closes relay from Inst1 (DMM Hi) to DAC2
When measuring DAC1 or DAC2, system ground must be
connected to low side of DMM.
•
ISensRly:
0 opens relay from Inst16 (Spare16) to ISense
(default), 1 closes relay from Inst16 (Spare16) to Isense.
•
OAR:
0 causes no change, 1 causes all relays to open.
NOTE
See description for Register offset 4
h
.
NOTE
Reset causes Inst16 to be connected to the Inst MUX and Isense relay is
disconnected
NOTE
Since the card level reset bit is “OR’d” with the back plane reset, the
state of the Reset bit during read also indicates the state of the back
plane reset line.
NOTE
The above values are valid for the Agilent E8792A only.
NOTE
The above value is currently not implemented.
Writing a 1 to IsensRly disconnects INST16 from the instrument matrix.
Writing a 0 to IsenseRly connects INST16 to the instrument matrix.
Summary of Contents for E6198B
Page 10: ...x E6198B Switch Load Unit User Manual THIS PAGE IS INTENTIONALLY LEFT BLANK...
Page 198: ...7 10 E6198B Switch Load Unit User Manual 7 Using the Custom Card Figure 7 8 E8794A Schematic...
Page 313: ...G 1 Agilent TS 5000 E6198B Switch Load Unit User Manual Agilent Technologies Glossary Of Terms...
