Analog Input Modules for
Compact FieldPoint and FieldPoint
+
–
External
Power
Supply
+
External
Power
Isolation
Supply
–
C
V
C
V
V
SUP
V
[c]FP-AI-1xx modules feature optical bank isolation with 2,300 Vrms
SUP
Loop-Powered
To Analog
Input Circuitry
Current
of breakdown isolation. In addition, the [c]FP-AI-100, [c]FP-AI-102,
Powered
Voltage
Transducer
+
OUT
–
To Analog
V
IN
Transducer
Input Circuitry
I
IN
Input
and [c]FP-AI-110 modules provide double insulation for up to
250 Vrms 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.
Impedance
Varies by
Module
100 Ω
COM
COM
To Next Channel
[c]FP-AI-100/110/111
To Next Channel
[c]FP-AI-100/102/110
Figure 2. Schematics for the AI Module Wiring
Ordering Information
Compact FieldPoint
Field I/O Connections
NI cFP-AI-100 ............................................................777318-100
NI cFP-AI-102 ............................................................777318-102
NI cFP-AI-110 ............................................................777318-110
NI cFP-AI-111 ............................................................777318-111
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 (VSUP) and common (COM). These terminals provide
a convenient way to distribute power to field devices that require
external power.
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
Each input channel on the AI-100 and AI-110 has four terminals:
FieldPoint
NI FP-AI-100 ..............................................................777518-100
NI FP-AI-102 ..............................................................777518-102
NI FP-AI-110 ..............................................................777518-110
NI FP-AI-111 ..............................................................777518-111
1. Voltage input (VIN
)
2. Current input (IIN
)
3. Common (COM)
4. Power connection to power field devices or loop powered
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
current loops (VSUP
)
The AI-111 has:
• 16 current input terminals (IIN
• 8 common terminals (COM)
)
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Visit ni.com/info and enter cfpai100, cfpai102, cfpai110, cfpai111,
fpai100, fpai102, fpai110, and/or fpai111.
• 8 power connections for field devices or current loops (VSUP
)
The AI-102 module has:
• 8 voltage input terminals (VIN
)
• 16 common terminals (COM)
Specifications
Typical for -40 to 70 °C unless otherwise noted.
• 8 power connections to power field devices (VSUP
)
Input Characteristics
Number of inputs
C
V
C
V
V
V
SUP
SUP
[c]FP-AI-100, [c]FP-AI-102, [c]FP-AI-110 .... 8 single-ended
[c]FP-AI-111................................................ 16 single-ended
ADC resolution
[c]FP-AI-110, [c]FP-AI-111.......................... 16 bits, 1 in 6±,±ꢀ6
[c]FP-AI-100, [c]FP-AI-102.......................... 12 bits, 1 in 4,096
Filters
[c]FP-AI-110, [c]FP-AI-111.......................... ±0, 60, or ±00 Hz, software configurable per channel
[c]FP-AI-100, [c]FP-AI-102.......................... 170 Hz, first-order analog filter
NMR ([c]FP-AI-110 and [c]FP-AI-111 only)... 9± dB (at ±0/60 Hz, with filter enabled)
Input impedance, voltage inputs
To Analog
Input Circuitry
To Analog
Input Circuitry
V
I
IN
IN
Input
Current
Source
+
–
Voltage
Source
Impedance
Varies by
Module
100 Ω
COM
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
[c]FP-AI-100................................................ 1.± MΩ
[c]FP-AI-102................................................ 1 MΩ
[c]FP-AI-110................................................ 100 MΩ
Input impedance, current inputs...................... 100 Ω
Overvoltage protection (voltage inputs only)
[c]FP-AI-100, [c]FP-AI-102.......................... 2±0 V
[c]FP-AI-110................................................ 40 V
Overcurrent protection (current inputs only).... ꢀ0 mA
2
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