Keithley 7001, Instruction Manual, Page: 53 / 353

Front Panel Operation
4-4
4.3.1 Channel status display
The channel status display provides real-time status
(open or closed) of each available channel for the two
slots; Card 1 and Card 2. Only available channels are
displayed. A single “dot” indicates that the available
channel is open. A “dash” (5 dots) indicates that the
channel is closed (see Figure 4-2).
The channel entry prompt depends on which display
mode is currently selected. After power-up, the instru-
ment is in the channel list entry state (see Figure 4-1A)
for basic close/open operation. When SCAN LIST is
pressed, the instrument goes to the scan list entry state
as shown in Figure 4-1B. In general, pressing the EXIT
key will select the channel status display, and pressing
the SCAN LIST key will toggle between the channel list
and the scan list.
Channel designations for the channel status display
depend on the type of card installed. For example, if a
non-matrix type card (i.e. Model 7011 multiplexer or
Model 7013 relay switch card) is installed, the channels
would be numbered 1 through 40. Figure 4-3A shows
Channel 27 of a non-matrix type card closed. If, howev-
er, a matrix card (i.e. Model 7012) is installed, channels
are designated as row/column crosspoint coordinates.
Figure 4-3B shows matrix crosspoint at Row 3, Column
7 closed.
Figure 4-2
Channel status display
CARD 1 CARD 2
1 2 3
REM
4
TALK
5 6
LSTN
7
SRQ
8 9 10 1 2 3 4 5 6 7
ARM
8 9 10
= Open Channel
= Closed Channel
Channel 2!36 for Mux
Channel 2!4!6 for Matrix
Figure 4-3
Interpreting channel status display
CARD 1
1 2 3 4 5 6 7 8 9 10
A) Non-Matrix Type Cards
CARD 1
1 2 3 4 5 6 7 8 9 10
B) Matrix Cards
Channel 27 Closed
Row 3, Column 7 Crosspoint Closed
Column
11
21
31 20
30
40
Row
1
2
3
4
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