Analog Input Modules for
Compact FieldPoint and FieldPoint
Isolation
[c]FP-AI-1xx modules feature optical bank isolation with 2,300 V
rms
of breakdown isolation. In addition, the [c]FP-AI-100, [c]FP-AI-102,
and [c]FP-AI-110 modules provide double insulation for up to
250 V
rms
of operational isolation. Compact FieldPoint can safely be
used in applications where hazardous voltages are present with the
cFP-CB-1 connector block. FieldPoint can safely be used in
applications where hazardous voltages are present with the FP-TB-x
terminal base. These Compact FieldPoint and FieldPoint modules do
not have channel-to-channel isolation.
V
SUP
Loop-Powered
Current
Transducer
I
IN
External
+
Power
Supply
–
C
V
V
SUP
To Analog
Input Circuitry
Input
Impedance
Varies by
Module
COM
External
+
Power
Supply
–
C
V
To Analog
Input Circuitry
100
Ω
COM
To Next Channel
[c]FP-AI-100/110/111
Powered
+
Voltage OUT
Transducer
–
V
IN
To Next Channel
[c]FP-AI-100/102/110
Figure 2. Schematics for the AI Module Wiring
Ordering Information
Field I/O Connections
Compact FieldPoint and FieldPoint modules include a built-in
power distribution bus that provides multiple power connections on
the module. A field-wired power supply connected to the voltage (V)
and common (C) terminals is internally connected to a power
distribution bus that provides additional breakout terminals for
voltage supply (V
SUP
) and common (COM). These terminals provide
a convenient way to distribute power to field devices that require
external power.
Each input channel on the AI-100 and AI-110 has four terminals:
1. Voltage input (V
IN
)
2. Current input (I
IN
)
3. Common (COM)
4. Power connection to power field devices or loop powered
current loops (V
SUP
)
The AI-111 has:
• 16 current input terminals (I
IN
)
• 8 common terminals (COM)
• 8 power connections for field devices or current loops (V
SUP
)
The AI-102 module has:
• 8 voltage input terminals (V
IN
)
• 16 common terminals (COM)
• 8 power connections to power field devices (V
SUP
)
C
V
SUP
I
IN
Compact FieldPoint
NI cFP-AI-100
NI cFP-AI-102
NI cFP-AI-110
NI cFP-AI-111
............................................................777318-100
............................................................777318-102
............................................................777318-110
............................................................777318-111
Recommended Compact FieldPoint System Products
NI cFP-2020 ..............................................................777317-2020
NI cFP-BP-4 ..................................................................778617-04
NI cFP-CB-1 ..................................................................778618-01
NI PS-5 Power Supply ..................................................778805-90
NI Developer Suite Professional Control Edition..........777906-03
FieldPoint
NI FP-AI-100
NI FP-AI-102
NI FP-AI-110
NI FP-AI-111
..............................................................777518-100
..............................................................777518-102
..............................................................777518-110
..............................................................777518-111
Recommended FieldPoint System Products
NI FP-1601 ....................................................................777792-01
NI FP-TB-1 ....................................................................777519-01
NI PS-4 Power Supply ..................................................778586-90
NI Developer Suite Standard Control Edition ............777905-03
BUY ONLINE!
Visit
ni.com/info
and enter cfpai100, cfpai102, cfpai110, cfpai111,
fpai100, fpai102, fpai110, and/or fpai111.
Specifications
Typical for -40 to 70 °C unless otherwise noted.
Input Characteristics
V
V
SUP
C
To Analog
Input Circuitry
Input
Impedance
Varies by
Module
V
To Analog
Input Circuitry
100
Ω
V
IN
Current
Source
COM
Voltage
Source
+
–
COM
To Next Channel
[c]FP-AI-100/110/111
To Next Channel
[c]FP-AI-100/102/110
Figure 1. Schematics for the AI Module Wiring
Number of inputs
[c]FP-AI-100, [c]FP-AI-102, [c]FP-AI-110 ....
[c]FP-AI-111................................................
ADC resolution
[c]FP-AI-110, [c]FP-AI-111 ..........................
[c]FP-AI-100, [c]FP-AI-102 ..........................
Filters
[c]FP-AI-110, [c]FP-AI-111 ..........................
[c]FP-AI-100, [c]FP-AI-102 ..........................
NMR ([c]FP-AI-110 and [c]FP-AI-111 only)...
Input impedance, voltage inputs
[c]FP-AI-100................................................
[c]FP-AI-102................................................
[c]FP-AI-110................................................
Input impedance, current inputs ......................
Overvoltage protection (voltage inputs only)
[c]FP-AI-100, [c]FP-AI-102 ..........................
[c]FP-AI-110................................................
Overcurrent protection (current inputs only)....
8 single-ended
16 single-ended
16 bits, 1 in 65,536
12 bits, 1 in 4,096
50, 60, or 500 Hz, software configurable per channel
170 Hz, first-order analog filter
95 dB (at 50/60 Hz, with filter enabled)
1.5 MΩ
1 MΩ
100 MΩ
100
Ω
250 V
40 V
30 mA
2
National Instruments • Tel: (800) 433-3488 • Fax: (512) 683-9300 • info@ni.com • ni.com
NI [ NATIONAL INSTRUMENTS CORPORATION ]
