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FieldPoint Operating Instructions
FP-CTR-500 and
cFP-CTR-500
Eight-Channel, 16-Bit Counter Module
These operating instructions describe how to install and use the
National Instruments FP-CTR-500 and cFP-CTR-500 counter
modules (referred to inclusively as the [c]FP-CTR-500). For
information about configuring and accessing the [c]FP-CTR-500
over a network, refer to the user manual for the FieldPoint network
module you are using.
Features
The [c]FP-CTR-500 is a FieldPoint counter module with the
following features:
•
Eight 16-bit counters with individual count input terminals
•
Four gate-input channels configurable as either gates or digital
inputs
•
Four output channels configurable as either generic digital
outputs or associated outputs for the count-input channels
•
Sinking inputs and sourcing outputs, compatible with
12 or 24 VDC devices
•
Internal frequency references of 1 kHz and 32 kHz
•
Internally cascadable counters
•
Software-enabled 50 kHz or 200 Hz lowpass filter on
count-input channels
•
On/Off LED indicators
•
2,300 V
rms
•
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 .
323323B-01
© 2002–2003 National Instruments Corp. All rights reserved.
transient overvoltage protection
June 2003
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Table of Contents
Related Manuals for National Instruments FP-CTR-500
Summary of Contents for National Instruments FP-CTR-500
- 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 FP-CTR-500 onto a powered terminal base does not disrupt the operation of the FieldPoint bank. To install the FP-CTR-500, refer to Figure 1 and complete the following steps: 1. Slide the terminal base key to either position X, used for any module, or position 8, used for the FP-CTR-500 module.
- Page 3 3 cFP Controller Figure 2. Installing the cFP-CTR-500 Wiring the [c]FP-CTR-500 The FP-TB-x terminal base has connections for each FP-CTR-500 channel and for an external power supply to power the output channels and field devices. The cFP-CB-x connector block provides the same connections for the cFP-CTR-500. The V and terminals are all internally connected, as are the C and COM terminals.
- Page 4 Count Inputs Count Input 0 Count Input 1 Count Input 2 Count Input 3 Count Input 4 Count Input 5 Count Input 6 Count Input 7 Gate Inputs Gate 0 Gate 1 Gate 2 Gate 3 FP-CTR-500 and cFP-CTR-500 ni.com...
- Page 5 You can connect the eight count-input channels and four gate-input channels to devices with sourcing outputs. The [c]FP-CTR-500 has sinking inputs, which means that the V terminal provides a path to common. The [c]FP-CTR-500 input channels are optically isolated from the rest of the FieldPoint bank and have current-limiting circuitry.
- Page 6 COM terminals that you can use to supply power to field devices. You can connect the four output channels to devices with sinking inputs. The [c]FP-CTR-500 has sourcing outputs, which means that the V terminal provides a path to a voltage supply.
- Page 7 Table 2 lists the actual output voltages based on the voltage provided by the external power supply. Table 2. [c]FP-CTR-500 Output Voltages for a 0.5 A Current Flow 9.85 11.85 23.85...
- Page 8 Channel Status In FieldPoint software, the [c]FP-CTR-500 reports one of the following statuses: Successful Overflow since last .
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Page 9: Count Source
Always Enabled is the default value. Gate Input Count Input Figure 6. Gate Source Set to an External Gate Input © National Instruments Corp. FP-CTR-500 and cFP-CTR-500... -
Page 10: Noise Rejection
Channels 12–15 are digital output channels. In the Channel Configuration dialog box of FieldPoint software, you can select attributes for each output channel from the Attributes menu. The following sections describe the different attributes you can select for output channels. FP-CTR-500 and cFP-CTR-500 ni.com... -
Page 11: Output Source
In Figure 7, the terminal count is 4. Count Input Output Figure 7. Output of a Channel Set to Toggle, Reset Off Mode © National Instruments Corp. FP-CTR-500 and cFP-CTR-500... - Page 12 The output channel returns to low after one count. In Figure 9, the terminal count is 4. Count Input Output Figure 9. Output of a Channel Set to On Pulse Mode FP-CTR-500 and cFP-CTR-500 ni.com...
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Page 13: Short Circuit Protection
Alternatively, if completely removing the channel load is not convenient, reset the channel in any of the following ways. • In FieldPoint software,write a to the channel. The channel resets immediately. • Disconnect the external power supply from the [c]FP-CTR-500. © National Instruments Corp. FP-CTR-500 and cFP-CTR-500... - Page 14 Application Note: Generating a Continuous Pulse Train You can use two [c]FP-CTR-500 count-input channels and one output channel to generate a continuous pulse train with a controllable duty cycle and period. The first count-input channel serves as a clock prescaler and divides the input clock by a fixed value.
- Page 15 4. Set the Count Source of the prescaler counter to the clock on which you want to base your pulse train. This can be the external counter input or one of the [c]FP-CTR-500 internal references. 5. Subtract 1 from the value that you want to divide the input clock by, and set the terminal count of the prescaler counter to the result.
- Page 16 For Off Pulse mode, use -------------------------------- – term pulse where d is the duty cycle of the pulse train term is the terminal count value of the pulse counter pulse FP-CTR-500 and cFP-CTR-500 ni.com...
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Page 17: Status Indicators
Counter, but the output frequency is half that value when you set the output channel to one of the toggle modes. Status Indicators Figure 12 shows the status indicator LEDs on the [c]FP-CTR-500. Figure 12. Status Indicators The [c]FP-CTR-500 has two green status LEDs, POWER and READY. -
Page 18: Isolation And Safety Guidelines
[c]FP-CTR-500 to any circuits that may contain hazardous voltages. This section describes the isolation of the [c]FP-CTR-500 and its compliance with international safety standards. The field wiring connections are isolated from the backplane and the inter-module communication bus. -
Page 19: Specifications
Number of channels......4 Output type ........10–30 VDC sourcing, compatible with most 12 or 24 VDC devices Supply voltage ........10–30 VDC, user-provided The operating range of the cFP-CTR-500 is –40 to 60 °C. © National Instruments Corp. FP-CTR-500 and cFP-CTR-500... - Page 20 Physical Characteristics Indicators .......... Green POWER and READY indicators, 16 green input/output state indicators Weight FP-CTR-500 ....... 144 g (5.1 oz) cFP-CTR-500 ......114 g (4.0 oz) Power Requirements Power from network module .... 800 mW Isolation Voltage Channel-to-channel isolation .... No isolation between channels Transient overvoltage......
- Page 21 Emissions.......... EN 55011 Class A at 10 m FCC Part 15A above 1 GHz Immunity........... EN 61326:1997 + A2:2001, Table 1 For EMC compliance, you must operate this device Note with shielded cabling. © National Instruments Corp. FP-CTR-500 and cFP-CTR-500...
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Page 22: Where To Go For Support
Declarations of Conformity Information at ni.com/hardref.nsf/ Mechanical Dimensions Figure 13 shows the mechanical dimensions of the FP-CTR-500 installed on a terminal base. If you are using the cFP-CTR-500, refer to your Compact FieldPoint controller user manual for the dimensions and cabling clearance requirements of the Compact FieldPoint system. - Page 23 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. FP-CTR-500 and cFP-CTR-500...