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Operating Manual
FieldPoint Operating Instructions
FP-AO-200
Eight-Channel 20 mA Loop Output Modules
These operating instructions describe how to install and use the
National Instruments FP-AO-200 and cFP-AO-200 analog output
modules (referred to inclusively as the [c]FP-AO-200). For
information about configuring and accessing the [c]FP-AO-200
over a network, refer to the user manual for the FieldPoint network
module you are using.
Features
The [c]FP-AO-200 is a FieldPoint analog output module with the
following features:
•
Eight 0–20 or 4–20 mA outputs
•
0.5 mA overranging
•
12-bit resolution
•
Up to 1 kΩ load impedance (with 24 V loop supply)
•
Indicators for open current loops
•
Short-circuit protection
•
2,300 V
rms
inter-module communication bus and the I/O channels
•
–40 to 70 °C operation
•
Hot plug-and-play
FieldPoint™, National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation.
Product and company names mentioned herein are trademarks or trade names of their respective companies.
For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software,
the patents.txt file on your CD, or ni.com/patents .
323343A-01
© 2002 National Instruments Corp. All rights reserved.
AND C
transient overvoltage protection between the
October 2002
FP-AO-200
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Summary of Contents for National Instruments FP-AO-200
- Page 1 FieldPoint™, National Instruments™, NI™, and ni.com™ are trademarks of National Instruments Corporation. Product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents .
- Page 2 2 (used for the FP-AO-200 module). 2. Align the FP-AO-200 alignment slots with the guide rails on the terminal base. 3. Press firmly to seat the FP-AO-200 in the terminal base. The terminal base latch locks the FP-AO-200 into place when it is firmly seated.
- Page 3 (10 lb ⋅ in.) of torque. The nylon coating on the screws prevents them from loosening. 1 cFP Backplane 3 cFP-AO-200 5 Screw Holes 2 cFP Controller Module 4 Captive Screws Figure 2. Installing the cFP-AO-200 © National Instruments Corp. FP-AO-200 and cFP-AO-200...
- Page 4 With a 24 VDC loop supply, each output can drive up to 1 kΩ of load impedance. With a 5 VDC loop supply, each output can only drive up to 100 Ω. The [c]FP-AO-200 detects and reports error conditions due to excessive loads or insufficient loop supplies.
- Page 5 The [c]FP-AO-200 updates the output channels as new values are sent to it by the network module. The time it takes to respond to a change on a single channel is between 3 and 6 ms. The response time to changes on all eight channels is 24 to 27 ms.
-
Page 6: Open-Loop Detection
If the output of a [c]FP-AO-200 channel is set to 0 mA, the monitoring circuit does not register an error condition because the FP-AO-200 and cFP-AO-200... -
Page 7: Short Circuit Protection
Figure 6. Status Indicators The [c]FP-AO-200 has two green status LEDs, POWER and READY. After you insert the [c]FP-AO-200 into a terminal base or backplane and apply power to the connected network module, the green POWER indicator lights and the [c]FP-AO-200 informs the network module of its presence. -
Page 8: Isolation And Safety Guidelines
[c]FP-AO-200 to any circuits that may contain hazardous voltages. This section describes the isolation of the [c]FP-AO-200 and its compliance with international safety standards. The field wiring connections are isolated from the backplane and the inter-module communication bus. -
Page 9: Specifications
Protection.......... Short-circuit and open-circuit Default power-up state...... 0 mA Accuracy Absolute accuracy......0.1% typ, 0.3% max (calculated as a percentage of full-scale reading) Maximum load resistance = (Supply voltage – Internal voltage drop)/0.0205 A © National Instruments Corp. FP-AO-200 and cFP-AO-200... - Page 10 Physical Characteristics Indicators .......... Green POWER and READY indicators, 8 red open-loop indicators Weight FP-AO-200 ......... 140 g (4.8 oz) cFP-AO-200 ....... 110 g (3.7 oz) Power Requirements Power from network module .... 350 mW Isolation Voltage Channel-to-channel isolation .... No isolation between channels Transient overvoltage......
- Page 11 ....... 10–500 Hz, 5 g Operating vibration, sinusoidal (IEC 60068-2-6) [c]FP-AO-200......10–500 Hz, 5 g Safety The [c]FP-AO-200 is designed to meet the requirements of the following standards for safety and electrical equipment for measurement, control, and laboratory use. •...
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Page 12: Where To Go For Support
Mechanical Dimensions Figure 7 shows the mechanical dimensions of the FP-AO-200 installed on a terminal base. Dimensions are given in millimeters [inches]. If you are using the cFP-AO-200, refer to the Compact FieldPoint controller user manual for the dimensions and cabling clearance requirements of the Compact FieldPoint system. - Page 13 Singapore 65 6 226 5886, Slovenia 3 425 4200, South Africa 11 805 8197, Spain 91 640 0085, Sweden 08 587 895 00, Switzerland 056 200 51 51, Taiwan 02 2528 7227, United Kingdom 01635 523545 © National Instruments Corp. FP-AO-200 and cFP-AO-200...
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