KPCI-3101 — KPCI-3104 Series User’s Manual
KPCI-3101–4 Series boards provide gains of 1, 2, 4, and 8, which are programmable per chan-
nel.
lists the effective ranges supported by the KPCI-3101–4 Series board using these
gains.
For each channel, choose the gain that has the smallest effective range that includes the signal
you want to measure. For example, if the range of your analog input signal is ±1.5V, specify a
range of
−
10V to +10V for the board and use a gain of 4 for the channel; the effective input
range for this channel is then ±2.5V, which provides the best sampling accuracy for that channel.
The way you specify gain depends on how you specified the channels, as described in the fol-
lowing subsections.
Specifying the gain for a single channel
The simplest way to specify the gain for a single channel is to specify the gain for a single value
analog input operation using software; refer to
for more information on single value
operations.
You can also specify the gain for a single channel using an analog input gain list, described in
the next section.
Specifying the gain for one or more channels
For KPCI-3101–4 Series boards, you can specify the gain for one or more analog input channels
using an analog input gain list. Using software, set up the gain list by specifying the gain for
each entry in the channel list. The gain list parallels the channel list. (The two lists together are
often referred to as the channel-gain list.)
For example, assume the analog input channel list contains three entries: channels 5, 6, and 7;
the gain list might look like this: 2, 4, 1, where a gain of 2 corresponds to channel 5, a gain of 4
corresponds to channel 6, and a gain of 1 corresponds to channel 7.
NOTE
For analog input channel 0 programmed with digital capabilities (the 16
digital I/O lines). Refer to the DriverLINX Analog I/O Programming
Guide, provided with DriverLINX.
Table 2-2
Gains and effective ranges
Gain
Unipolar Analog
Input Range
Bipolar Analog
Input Range
1
0 to 10V
±10V
2
0 to 5V
±5V
4
0 to 2.5V
±2.5V
8
0 to 1.25V
±1.25V
Summary of Contents for KPCI-3101 Series
Page 10: ...iv...
Page 15: ...1 Overview...
Page 21: ...2 Principles of Operation...
Page 53: ...3 Installation and Configuration...
Page 78: ...3 26 Installation and Configuration KPCI 3101 KPCI 3104 Series User s Manual...
Page 79: ...4 Testing the Board...
Page 82: ...4 4 Testing the Board KPCI 3101 KPCI 3104 Series User s Manual...
Page 83: ...5 Calibration...
Page 86: ...5 4 Calibration KPCI 3101 KPCI 3104 Series User s Manual...
Page 87: ...6 Troubleshooting...
Page 94: ...6 8 Troubleshooting KPCI 3101 KPCI 3104 Series User s Manual...
Page 95: ...A Specifications...
Page 107: ...B Connector Pin Assignments...
Page 111: ...C Systematic Problem Isolation...
Page 145: ...This page intentionally left blank...
Page 146: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...