Modules offer high-channel-count digital I/O
20 April 2005
Computer/Embedded Technology
National Instruments' Compact FieldPoint device, the cFP/FP-DIO-550, is a 16-channel digital input/digital output module that measures eight digital inputs with a range of 11 to 30 V d.c. and sources eight outputs from 10 to 30 V d.c. with 250 mA per channel. The cFP-AI-118, is an eight-channel analog input module that measures eight analog inputs at 16-bit resolution and offers a 10 kSaps per channel sampling rate with a range of zero to 1, 5, 10 or 15 V, and ±1, ±5, ±10 or ±15 V.
The cFP/FP-DIO-550 offers both digital input and digital output channels, effectively replacing two modules with a single module. It delivers 250 V CAT II safety isolation to backplane, as well as interfacing for discrete sensors and actuators. This module offers a user-selectable input filter and has a range of 1 μs to 65 ms.
In addition to high resolution and simultaneous sampling, the cFP-AI-118 is a dual port memory module, significantly reducing system jitter. This module also features 750 Vrms channel-to-channel isolation and 2300 Vrms channel-to-backplane isolation.
These devices are well-suited for industrial control applications that require multiple types of inputs and outputs in one bank, or where high-voltage channel-to-channel isolation is essential due to ground loops and similar conditions that could damage control equipment.
For more information contact NI South Africa, 0800 203 199.
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