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323343A-01

October 2002

©

 2002 National Instruments Corp. All rights reserved.

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

.

FieldPoint Operating Instructions

FP-AO-200 

AND

 

C

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 k

 load impedance (with 24 V loop supply)

Indicators for open current loops

Short-circuit protection

2,300 V

rms

 transient overvoltage protection between the 

inter-module communication bus and the I/O channels

–40 to 70 °C operation

Hot plug-and-play

Содержание CFP-AO-200

Страница 1: ... 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 ...

Страница 2: ...sed 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 4 Connect a current loop supply for the outputs to the V and C terminals of the terminal base Figure 1 Installing the FP AO 200 Installing the cFP AO 200...

Страница 3: ...the cFP AO 200 prevent backward insertion 2 Press firmly to seat the cFP AO 200 on the backplane 3 Using a number 2 Phillips screwdriver with a shank of at least 64 mm 2 5 in length tighten the captive screws to 1 1 N m 10 lb in of torque The nylon coating on the screws prevents them from loosening Figure 2 Installing the cFP AO 200 1 cFP Backplane 2 cFP Controller Module 3 cFP AO 200 4 Captive Sc...

Страница 4: ... that follow for detailed wiring instructions Sourcing Current to a Load The c FP AO 200 sources current from an external loop supply to a load The c FP AO 200 can operate with an external loop supply from 5 to 24 VDC The voltage from the external supply determines the maximum load impedance that the c FP AO 200 can drive With a 24 VDC loop supply each output can drive up to 1 kΩ of load impedance...

Страница 5: ... 3 and 6 ms The response time to changes on all eight channels is 24 to 27 ms Figure 3 shows the current output circuit of a single channel Figure 3 c FP A0 200 Current Output Circuit Figure 4 shows how to connect loads to two channels of the c FP AO 200 Figure 4 Connecting to Two Channels Iout Vsup COM COM Current Sense V C Open Loop Indicator 12 Bit Isolated DAC Loop Supply V C Load Iout COM Loa...

Страница 6: ...nging enables the c FP AO 200 to compensate for span and offset errors in field devices Open Loop Detection Each channel has a monitoring circuit that compares the actual output current to the specified output current If the c FP AO 200 cannot source the specified output current for one or more channels the monitoring circuits turn on a red STATUS LED for each affected channel and report the error...

Страница 7: ... Figure 6 shows the c FP AO 200 status indicators 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 When the network module recognizes the c FP AO 200 it ...

Страница 8: ...perly insulated from human contact Do not share the external supply voltages the V and C terminals with other devices including other FieldPoint devices unless those devices are isolated from human contact For Compact FieldPoint you must connect the protective earth PE ground terminal on the cFP BP x backplane to the system safety ground The backplane PE ground terminal has the following symbol st...

Страница 9: ...ise noted Output Characteristics Number of channels 8 single ended Resolution 12 bits 1 in 4 096 6 µA bit Current Output Output range 0 20 or 4 20 mA programmable 0 20 5 or 3 5 20 5 mA with overranging Type Current source external loop power required External loop power 5 24 VDC Internal voltage drop 3 V Resistive load Up to 1 kΩ with 24 V loop supply up to 100 Ω with 5 V supply1 Protection Short ...

Страница 10: ...10 g 3 7 oz Power Requirements Power from network module 350 mW Isolation Voltage Channel to channel isolation No isolation between channels Transient overvoltage 2 300 Vrms Environmental FieldPoint modules are intended for indoor use only For outdoor use FieldPoint modules must be mounted inside a sealed enclosure Operating temperature 40 to 70 C Storage temperature 55 to 100 C Humidity 10 to 90 ...

Страница 11: ...d laboratory use EN 61010 1 IEC 61010 1 UL 3121 1 CAN CSA C22 2 No 1010 1 For certifications under regulatory standards including hazardous location standards refer to the product label or to ni com Electromagnetic Compatibility CE C Tick and FCC Part 15 Class A Compliant Electromagnetic emissions EN 55011 Class A at 10 m FCC Part 15A above 1 GHz Electromagnetic immunity Evaluated to EN 61326 1997...

Страница 12: ...perating instructions Go to ni com support for the most current manuals examples and troubleshooting information For telephone support in the United States create your service request at ni com ask and follow the calling instructions or dial 512 795 8248 For telephone support outside the United States contact your local branch office Australia 03 9879 5166 Austria 0662 45 79 90 0 Belgium 02 757 00...

Страница 13: ... 0793 Netherlands 0348 433466 New Zealand 09 914 0488 Norway 32 27 73 00 Poland 22 3390 150 Portugal 210 311 210 Russia 095 238 7139 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 ...

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