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FieldPoint Operating Instructions
FP-CTR-502 and
cFP-CTR-502
Eight-Channel, 16-Bit Counter Module
These operating instructions describe how to install and use the
National Instruments FP-CTR-502 and cFP-CTR-502 counter
modules (referred to inclusively as the [c]FP-CTR-502). For
information about configuring and accessing the [c]FP-CTR-502
over a network, refer to the user manual for the FieldPoint network
module you are using.
Features
The [c]FP-CTR-502 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
•
5–30 VDC sourcing inputs and sinking outputs, compatible
with TTL devices and other 5, 12, and 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 .
323324B-01
© 2002–2003 National Instruments Corp. All rights reserved.
Download from Www.Somanuals.com. All Manuals Search And Download.
transient overvoltage protection
June 2003
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Summary of Contents for FieldPoint FP-CTR-502
- Page 1 National Instruments FP-CTR-502 and cFP-CTR-502 counter modules (referred to inclusively as the [c]FP-CTR-502). For information about configuring and accessing the [c]FP-CTR-502 over a network, refer to the user manual for the FieldPoint network module you are using. Features The [c]FP-CTR-502 is a FieldPoint counter module with the following features: •...
- Page 2 FP-CTR-502 onto a powered terminal base does not disrupt the operation of the FieldPoint bank. To install the FP-CTR-502, 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-502 module.
- Page 3 3 cFP Controller Figure 2. Installing the cFP-CTR-502 Wiring the [c]FP-CTR-502 The FP-TB-x terminal base has connections for each FP-CTR-502 channel and for an external power supply to power the input channels and field devices. The cFP-CB-x connector block provides the same connections for the cFP-CTR-502. The V and terminals are all internally connected, as are the C and COM terminals.
- Page 4 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-502 and cFP-CTR-502 ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 5 COM, is lower than V threshold the channel is ON. Therefore, if you connect a 24 V power supply to the [c]FP-CTR-502, an input channel registers an ON state when © National Instruments Corp. FP-CTR-502 and cFP-CTR-502 Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 6 COM terminals that can supply power to field devices. The [c]FP-CTR-502 has sinking outputs, which means that V provides a path to ground. You can connect the [c]FP-CTR-502 outputs to sourcing-input devices. In the ON state, a transistor is turned on between the output (V and common (C and COM).
- Page 7 [c]FP-CTR-502 Figure 4. Wiring an Output Channel to a Sourcing-Input Device If you connect a [c]FP-CTR-502 output to an externally powered sourcing-input device, be aware that the voltage applied to the terminal by the external device must not exceed the voltage level of the power supply connected to the [c]FP-CTR-502.
- Page 8 Channel Status In FieldPoint software, the [c]FP-CTR-502 reports one of the following statuses: Successful Overflow since last .
- Page 9 Read Reset Mode You can configure each count-input channel to reset each time the FieldPoint network module reads it by selecting Reset on Read from the Value menu. A read-initiated reset also resets any outputs associated with the target channel. The default is Don’t Reset On Read.
- Page 10 Configuring Output Channels 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.
- Page 11 In Figure 8, the terminal count is 4. Count Input Output Figure 8. Output of a Channel Set to Toggle, Reset On Mode © National Instruments Corp. FP-CTR-502 and cFP-CTR-502 Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 12 The output channel returns to high after one count. In Figure 10, the terminal count is 4. Count Input Output Figure 10. Output of a Channel Set to Off Pulse Mode FP-CTR-502 and cFP-CTR-502 ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 13 Application Note: Generating a Continuous Pulse Train You can use two [c]FP-CTR-502 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 14 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-502 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 15 Pulse Counter , but the output frequency is half that value when you set the output channel to one of the toggle modes. © National Instruments Corp. FP-CTR-502 and cFP-CTR-502 Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 16 Status Indicators Figure 12 shows the status indicator LEDs on the [c]FP-CTR-502. Figure 12. Status Indicators The [c]FP-CTR-502 has two green status LEDs, POWER and READY. After you install the [c]FP-CTR-502 onto a terminal base or backplane and apply power to the connected network module, the green POWER indicator lights and the [c]FP-CTR-502 informs the network module of its presence.
- Page 17 Follow these guidelines to ensure a safe total system. • The [c]FP-CTR-502 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.
- Page 18 TTL devices and other 5, 12, or 24 VDC devices Supply voltage ........5–30 VDC, user-provided The operating range of the cFP-CTR-502 is –40 to 60 °C. FP-CTR-502 and cFP-CTR-502 ni.com Download from Www.Somanuals.com. All Manuals Search And Download.
- Page 19 Channel-to-channel isolation .... No isolation between channels Transient overvoltage......2,300 V Environmental FieldPoint modules are intended for indoor use only. For outdoor use, they must be mounted inside a sealed enclosure. Operating temperature cFP-CTR-502 ......–40 to 60 °C FP-CTR-502 ....... –40 to 70 °C Storage temperature ......
- Page 20 Shock and Vibration These specifications apply only to the cFP-CTR-502. NI recommends Compact FieldPoint if your application is subject to shock and vibration. Operating vibration, random (IEC 60068-2-64)......10–500 Hz, 5 g Operating vibration, sinusoidal (IEC 60068-2-6)........ 10–500 Hz, 5 g Operating shock (IEC 60068-2-27)......
- Page 21 Declarations of Conformity Information at ni.com/hardref.nsf/ Mechanical Dimensions Figure 13 shows the mechanical dimensions of the FP-CTR-502 installed on a terminal base. If you are using the cFP-CTR-502, refer to your Compact FieldPoint controller user manual for the dimensions and cabling clearance requirements of the Compact FieldPoint system.
- Page 22 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...
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