National Instruments Blood Pressure Monitor cFP PG 522 User Manual

FieldPoint Operating Instructions  
FP-PG-522 and cFP-PG-522  
Eight-Channel Pulse Generator  
with 2 A, 5–30 VDC Sinking Outputs  
These operating instructions describe how to install and use the  
National Instruments FP-PG-522 and cFP-PG-522 pulse generator  
modules (referred to inclusively as the [c]FP-PG-522). For details  
on configuring and accessing the [c]FP-PG-522 over a network,  
refer to the user manual for the FieldPoint network module you are  
using.  
Features  
The [c]FP-PG-522 is a FieldPoint pulse generator module with the  
following features:  
Eight pulse-output channels  
User-powered 2 A, 5–30 VDC sinking outputs  
1 s, 10 ms, or 100 µs resolution setting, configurable per  
channel  
16-bit on-time and off-time settings  
100% duty cycle pulse support  
Finite and continuous pulse-generation modes  
Active/Inactive LED indicators  
2,300 Vrms transient overvoltage protection  
–40 to 70 °C operation  
Hot swappable  
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.  
323356B-01  
May 2003  
© 2002–2003 National Instruments Corp. All rights reserved.  
 
To install the cFP-PG-522, refer to Figure 2 and complete the  
following steps:  
1. Align the captive screws on the cFP-PG-522 with the holes on  
the backplane. The alignment keys on the cFP-PG-522 prevent  
backward insertion.  
2. Press firmly to seat the cFP-PG-522 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.  
4
3
5
2
4
2
1
1
2
3
cFP I/O Module  
Captive Screws  
cFP Controller Module  
4
5
Screw Holes  
cFP Backplane  
Figure 2. Installing the cFP-PG-522  
© National Instruments Corp.  
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FP-PG-522 and cFP-PG-522  
 
 
Wiring the [c]FP-PG-522  
The FP-TB-x terminal base has connections for each of the eight  
output channels and for an external power supply to power the  
output channels and field devices. The cFP-CB-x connector block  
provides the same connections. Each channel has one output  
terminal (VOUT), two supply terminals (VSUP), and one common  
terminal (COM). All eight channels are referenced to the COM  
terminals. The V and VSUP terminals are all internally connected,  
as are the C and COM terminals.  
Use a 5–30 VDC external power supply for the output channels.  
The power supply must provide enough current to power all of the  
loads on the output channels, up to a maximum of 2 A per channel.  
Connect the external power supply to multiple V and VSUP  
terminals and to multiple C and COM terminals as needed to  
ensure that the maximum current through any terminal is 2 A  
or less.  
Install a 2 A maximum, fast-acting fuse between the external  
power supply and the VSUP terminal on each channel. Install  
a 2 A maximum, fast-acting fuse suitable for the load at the  
VOUT terminal. Figure 3 shows fuses where appropriate.  
V
C
2 A max  
Load  
V
V
SUP  
5–30 VDC  
External  
Power Supply  
+
SUP  
2 A max  
Sinking  
Output  
V
OUT  
Circuitry  
COM  
To next channel  
[c]FP-PG-522  
Figure 3. Wiring the [c]FP-PG-522  
Caution Maximum output current for the cFP-PG-522 is  
temperature dependent. If the module is operating in the  
60–70 °C temperature range, you must select fuses for  
each channel so that the sum of the squares of the output  
currents is lower than 8 A2.  
FP-PG-522 and cFP-PG-522  
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Table 1 lists the terminal assignments for the signals of each  
channel. Terminal assignments are also listed on the side panel  
of the cFP-PG-522 and under the slide-in card on the front of the  
FP-PG-522.  
Table 1. Terminal Assignments  
Terminal Numbers  
1
2
VOUT  
VSUP  
Channel  
COM  
18  
0
1
2
3
4
5
6
7
2
4
1,17  
3,19  
5,21  
7,23  
9,25  
20  
6
22  
8
24  
10  
12  
14  
16  
26  
11,27  
13,29  
15,31  
28  
30  
32  
1 Install a 2 A maximum, fast-acting fuse on each VOUT terminal.  
2 Install a 2 A maximum, fast-acting fuse on each VSUP terminal.  
Pulse Output Circuit  
The [c]FP-PG-522 output channels are optically isolated from the  
rest of the FieldPoint bank. In the ON state, a transistor is turned  
on between the output (VOUT) and common (C and COM). In the  
OFF state, this transistor is turned off, allowing only a small  
leakage current to flow.  
Ensure that the load on any channel does not draw more than 2 A.  
In addition, the sum of the squares of the channel currents must  
not exceed 16 A2. For example, five channels operating at 1.2 A  
yields 7.2 A2:  
(1.2 A)2 × 5 = 7.2 A2  
Caution For a cFP-PG-522 operating in the 60–70 °C  
temperature range, the sum of the squares of the channel  
currents must not exceed 8 A2.  
© National Instruments Corp.  
5
FP-PG-522 and cFP-PG-522  
 
 
Table 2 shows some common combinations of output current levels  
on several channels.  
Table 2. Common Output Configurations  
Channel Subset  
4 channels at 2 A  
8 channels at 1 A  
7 channels at 1.5 A  
4 channels at 1 A  
2 channels at 2 A  
Channel Subset  
Total A2  
16 A2  
8 A2  
15.75 A2  
13 A2  
4 channels at 1.5 A  
6 channels at 1 A  
14 A2  
In the ON state, the effective resistance between VOUT and COM  
is 0.12 , which causes a voltage drop. For example, if the output  
current is 1 A, the voltage drop is 0.12 V:  
(1 A × 0.12 ) = 0.12 V  
Configuring the Count-Input Channels  
The [c]FP-PG-522 generates pulses consisting of a specified on  
time followed by a specified off time. In FieldPoint software, you  
can configure each count-input channel to operate with different  
attributes. In the Channel Configuration dialog box, select  
attributes for each channel from the Attributes menu. The  
following sections describe the different attributes you can select  
when you are configuring count-input channels. The [c]FP-PG-522  
does not support synchronization between channels. For more  
information about configuring channels in FieldPoint software,  
refer to the online help.  
Pulse Mode  
The Pulse Mode attribute for a channel can be either Finite or  
Continuous. In Finite mode, a channel responds to commands that  
start a finite pulse train of a specified number of pulses or stop  
generation of a currently running pulse train. These commands are  
discussed in the Channel Commands section. In Continuous mode,  
a channel continuously generates pulses and does not respond to  
any commands.  
FP-PG-522 and cFP-PG-522  
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A channel set to Continuous mode must be switched to Finite mode  
in order to stop pulse generation. When switched to Finite mode  
from Continuous mode, a channel finishes generating the current  
pulse and then stops.  
On Time  
The On Time attribute for a channel controls the duration of the  
pulses the channel generates. On Time can be any integer from  
1 to 65,535. Configure the Resolution attribute for the channel to  
set the units for On Time and Off Time.  
Off Time  
The Off Time attribute for a channel controls the amount of time  
between pulses. Off Time can be any integer from 0 to 65,535. The  
Resolution attribute for the channel determines the units for Off  
Time and On Time.  
Resolution  
The Resolution attribute determines the units for On Time and  
Off Time. Possible Resolution values are 1 s, 10 ms, and 100 µs.  
The multiple Resolution settings enable you to generate short,  
high-precision pulses on some channels and long pulses on others.  
Changing Settings During Pulse Generation  
If a channel is actively generating pulses in either Continuous or  
Finite mode, changes to On Time, Off Time, and Resolution  
settings take effect after the current pulse is finished.  
Calculating On Time and Off Time  
Table 3 lists the maximum On Time or Off Time for each  
Resolution setting. In general, you should select the smallest  
Resolution that allows the [c]FP-PG-522 to generate the necessary  
pulses.  
Table 3. On Time and Off Time Maximum Values  
Resolution  
100 µs  
10 ms  
Max On or Off Time  
6.5535 s  
Divide By  
0.0001  
0.01  
655.35 s  
1 s  
65,535 s  
1
© National Instruments Corp.  
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FP-PG-522 and cFP-PG-522  
 
 
To calculate On Time and Off Time, divide the desired On or Off  
Time for the pulse by the Resolution. For example, to generate a  
pulse that is on for 3.5 s and off for 0.25 s using a 100 µs  
Resolution, set the On Time to 35,000 and the Off Time to 2,500  
(100 µs = 0.0001 s; On Time = 3.5/0.0001 = 35,000;  
Off Time = 0.25/0.0001 = 2,500).  
Channel Commands  
Two commands can control operation of the [c]FP-PG-522 output  
channels. These commands affect only a channel operating in  
Finite Pulse mode. Commands sent to a channel operating in  
Continuous Pulse mode have no effect.  
The Control command supports two actions: Stop Immediately and  
Stop After Current Pulse. Both of these actions can stop a finite  
pulse train. Stop Immediately stops pulse generation immediately.  
The channel goes into the idle state, and, if the output for the target  
channel is on, it is turned off. Stop After Current Pulse ends the  
current pulse train after the current pulse is finished.  
The Generate Pulses command generates a pulse train consisting  
of the number of pulses indicated by the command value. The  
value of the Generate Pulses command can be any integer from  
1 to 65,535. If a finite pulse train is already being generated when  
the Generate Pulses command is sent, the new pulse train begins  
after the current pulse and supersedes the current pulse train.  
If actively generating a finite pulse train, the [c]FP-PG-522 can  
store one pending command for each channel. The Control: Stop  
Immediately action takes effect as soon as the command is  
received. The Control: Stop After Current Pulse action and the  
Generate Pulses command are deferred until the end of the current  
pulse if a pulse train is being generated. When a command is  
pending and a second command is received, the pending command  
is discarded and the new command is executed instead.  
Channel Data  
The [c]FP-PG-522 has eight physical channels that you can use to  
generate pulses. Each of these physical channels has two software  
channels associated with it, so the FieldPoint software shows  
16 channels. The first eight channels, 0–7, are the “main”  
channels. These are the channels that you configure with your  
desired pulse settings and that you send commands to in order to  
use the module. The data for channels 0–7 are unsigned count  
FP-PG-522 and cFP-PG-522  
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values, which reflect the number of pulses each channel has left to  
generate after the current pulse. When you send the Generate  
Pulses command to one of these channels, the data immediately  
changes to reflect the number of pulses that remain. The data value  
starts at the total number of pulses minus 1 and is zero during the  
last pulse. For channels generating pulses in Continuous mode, the  
data value is always zero.  
Channels 8–15 correspond to physical channels 0–7. These  
channels are not associated with any configuration attributes or  
commands. The data values for channels 8–15 are Boolean values  
that reflect the state of the physical outputs. Table 4 shows the  
relationship between physical channels and the channels seen from  
the FieldPoint software.  
Table 4. Relationship of Physical and Software Channels  
Physical Channel  
Pulse Channel  
Output State Channel  
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
9
10  
11  
12  
13  
14  
15  
Status Indicators  
Figure 4 shows the status indicator LEDs on the [c]FP-PG-522.  
Figure 4. Status Indicators  
The [c]FP-PG-522 has two green status LEDs, POWER and  
READY. After you insert the FP-PG-522 into a terminal base or  
the cFP-PG-522 onto a backplane and apply power to the  
connected network module, the green POWER indicator lights  
and the [c]FP-PG-522 informs the network module of its presence.  
© National Instruments Corp.  
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FP-PG-522 and cFP-PG-522  
 
   
When the network module recognizes the [c]FP-PG-522, it sends  
initial configuration information to the [c]FP-PG-522. After the  
[c]FP-PG-522 receives this initial information, the green READY  
indicator lights and the [c]FP-PG-522 is in normal operating mode.  
In addition to the green POWER and READY indicators, each  
channel has a numbered, green activity indicator that lights when  
the channel is actively generating pulses. The LED does not  
indicate whether the channel is currently in the ON or the OFF  
state.  
Upgrading the FieldPoint Firmware  
You may need to upgrade the FieldPoint firmware when you add  
new I/O modules to the FieldPoint system. For information on  
determining which firmware you need and how to upgrade the  
firmware, go to ni.com/info and enter fpmatrix.  
Isolation and Safety Guidelines  
Caution Read the following information before  
attempting to connect the [c]FP-PG-522 to any circuits  
that may contain hazardous voltages.  
This section describes the isolation of the [c]FP-PG-522 and its  
compliance with international safety standards. The field wiring  
connections are isolated from the backplane and the inter-module  
communication bus. The isolation is provided by the module,  
which has optical and galvanic isolation barriers designed and  
tested to protect against transient fault voltages of up to 2,300 Vrms  
.
Follow these guidelines to ensure a safe total system:  
The [c]FP-PG-522 has a safety isolation barrier between the  
I/O channels and the inter-module communication bus. There  
is no isolation between channels unless otherwise noted. If any  
of the channels on a module are wired at a hazardous potential,  
make sure that all other devices or circuits connected to that  
module are properly 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  
FP-PG-522 and cFP-PG-522  
10  
ni.com  
 
following symbol stamped beside it: . Connect the  
backplane PE ground terminal to the system safety ground  
using 14 AWG (1.6 mm) wire with a ring lug. Use the 5/16 in.  
panhead screw shipped with the backplane to secure the ring  
lug to the backplane PE ground terminal.  
As with any hazardous voltage wiring, make sure that all  
wiring and connections meet applicable electrical codes and  
commonsense practices. Mount terminal bases and backplanes  
in an area, position, or cabinet that prevents accidental or  
unauthorized access to wiring that carries hazardous voltages.  
Operate the [c]FP-PG-522 only at or below Pollution  
Degree 2. Pollution Degree 2 means that only nonconductive  
pollution occurs in most cases. Occasionally, however, a  
temporary conductivity caused by condensation must be  
expected.  
Refer to the FieldPoint product label for regulatory  
certification under hazardous location standards. If the  
FieldPoint product is not certified for operation in hazardous  
locations, do not operate it in an explosive atmosphere or  
where there may be flammable gases or fumes.  
Specifications  
The following specifications are typical for a range of –40 to 70 °C  
unless otherwise noted.  
Output  
Number of channels..........................8  
Output type .......................................5–30 VDC, sinking  
Supply voltage ..................................5–30 VDC, user-provided  
Maximum output current  
Per channel .................................2 A per channel  
Across all channels.....................16 A2 (8 A2 for cFP-PG-522  
operating at 60–70 °C)  
Output impedance.............................0.12 Ω  
Pulse-width accuracy........................ 5 µs, any pulse settings  
Pulse-frequency accuracy .................0.007%, any pulse settings  
© National Instruments Corp.  
11  
FP-PG-522 and cFP-PG-522  
 
Physical Characteristics  
Indicators ..........................................Green POWER and  
READY indicators, eight  
green output state indicators  
Weight  
FP-PG-522..................................130 g (4.6 oz)  
cFP-PG-522................................100 g (3.5 oz)  
Power Requirements  
Power from network module ............600 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, they must be mounted inside a sealed enclosure.  
Operating temperature ......................40 to 70 °C  
Storage temperature..........................55 to 85 °C  
Humidity...........................................10 to 90% RH,  
noncondensing  
Maximum altitude.............................2,000 m; at higher altitudes  
the isolation voltage ratings  
must be lowered  
Pollution Degree ...............................2  
Shock and Vibration  
These specifications apply only to the cFP-PG-522. NI  
recommends Compact FieldPoint if your application is  
subject to shock and vibration.  
Operating vibration, random  
(IEC 60068-2-64)..............................10–500 Hz, 5 grms  
Operating vibration, sinusoidal  
(IEC 60068-2-6)................................10–500 Hz, 5 g  
FP-PG-522 and cFP-PG-522  
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Operating shock  
(IEC 60068-2-27)..............................50 g, 3 ms half sine,  
18 shocks at 6 orientations;  
30 g, 11 ms half sine,  
18 shocks at 6 orientations  
Safety  
This product is designed to meet the requirements of the following  
standards of safety for electrical equipment for measurement,  
control, and laboratory use:  
IEC 61010-1, EN 61010-1  
UL 3121-1, UL 61010C-1  
CAN/CSA C22.2 No. 1010.1  
For UL, hazardous location, and other safety certifications, refer to  
the product label or to ni.com.  
Electromagnetic Compatibility  
CE, C-Tick, and FCC Part 15 (Class A) Compliant  
Emissions..........................................EN 55011 Class A at 10 m  
FCC Part 15A above 1 GHz  
Immunity...........................................EN 61326:1997 + A2:2001,  
Table 1  
Note For EMC compliance, you must operate this device  
with shielded cabling.  
CE Compliance  
This product meets the essential requirements of applicable  
European Directives, as amended for CE Marking, as follows:  
Low-Voltage Directive (safety).........73/23/EEC  
Electromagnetic Compatibility  
Directive (EMC) ...............................89/336/EEC  
Note Refer to the Declaration of Conformity (DoC) for  
this product for any additional regulatory compliance  
information. To obtain the DoC for this product,  
click Declarations of Conformity Information at  
ni.com/hardref.nsf/.  
© National Instruments Corp.  
13  
FP-PG-522 and cFP-PG-522  
 
Mechanical Dimensions  
Figure 5 shows the mechanical dimensions of the FP-PG-522  
installed on a terminal base. If you are using the cFP-PG-522,  
refer to your Compact FieldPoint controller user manual for the  
dimensions and cabling clearance requirements of the Compact  
FieldPoint system.  
107.19 mm  
(4.22 in.)  
109.5 mm  
(4.31 in.)  
91.44 mm  
(3.60 in.)  
Figure 5. FP-PG-522 Mechanical Dimensions  
Where to Go for Support  
For more information about setting up the FieldPoint system, refer  
to these National Instruments documents:  
FieldPoint network module user manual  
Other FieldPoint I/O module operating instructions  
FieldPoint terminal base and connector block operating  
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 1800 300 800, Austria 43 0 662 45 79 90 0,  
Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599,  
Canada (Calgary) 403 274 9391,  
Canada (Montreal) 514 288 5722,  
Canada (Ottawa) 613 233 5949, Canada (Québec) 514 694 8521,  
Canada (Toronto) 905 785 0085,  
Canada (Vancouver) 514 685 7530, China 86 21 6555 7838,  
FP-PG-522 and cFP-PG-522  
14  
ni.com  
 
 
Czech Republic 420 2 2423 5774, Denmark 45 45 76 26 00,  
Finland 385 0 9 725 725 11, France 33 0 1 48 14 24 24,  
Germany 49 0 89 741 31 30, Greece 30 2 10 42 96 427,  
India 91 80 51190000, Israel 972 0 3 6393737,  
Italy 39 02 413091, Japan 81 3 5472 2970,  
Korea 82 02 3451 3400, Malaysia 603 9131 0918,  
Mexico 001 800 010 0793, Netherlands 31 0 348 433 466,  
New Zealand 1800 300 800, Norway 47 0 66 90 76 60,  
Poland 48 0 22 3390 150, Portugal 351 210 311 210,  
Russia 7 095 238 7139, Singapore 65 6226 5886,  
Slovenia 386 3 425 4200, South Africa 27 0 11 805 8197,  
Spain 34 91 640 0085, Sweden 46 0 8 587 895 00,  
Switzerland 41 56 200 51 51, Taiwan 886 2 2528 7227,  
Thailand 662 992 7519, United Kingdom 44 0 1635 523545  
© National Instruments Corp.  
15  
FP-PG-522 and cFP-PG-522  
 

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