PXIE-7868R - NI Multifunction Reconfigurable I/O Module

Description

The PXIe-7868R (Part number: 785571-01) is a Multifunction Reconfigurable I/O Module manufactured by National Instruments. This module comes with Kintex-7 325T FPGA technology. The feature helps increase the on-board processing capabilities. It also helps control the I/O signals. This FPGA module has a flip flop range from 407 to 600. The LUTs range is from 203 to 800. This module is structured with an embedded block RAM with 16020 Kbits. The device has 840 DSP48 slices. The NI PXIe-7868R has a time base range from 40 MHz to 200 MHz. The default time base is 40 MHz and the time base accuracy is about ±100 ppm. The NI PXIe-7868R is equipped with 512 MB DRAM. The maximum theoretical data rate is 800 MB/s streaming. This module has three 68-pin VHDCI I/O connectors. The module has the maximum working voltage ±12 V from channel to earth. The maximum voltage range from channel to channel is ±24 V. The NI PXIe-7868R has 6 analog inputs. These input channels have 16-bit resolution with an analog to digital conversion system. This module has a conversion time of about 1 µs. Each channel is software selectable and can operate in RSE, DIFF, and NRSE modes. Each channel can operate at the maximum sample rate of 1 MS/s. The NI PXIe-7868R also consists of 18 analog outputs. These are single-ended channels with 16-bit resolution. The update rate of the output channels is 1 μs. The maximum update rate of each channel is 1 MS/s. This module operates through DC Coupling and has a voltage range of ±10 V.

One: PLC analog input module (analog input module), also known as A/D module, converts the continuous analog signal generated by the sensor detection in the field into the digital quantity that the PLC CPU can receive, generally 12-bit binary number, the more digital quantity modules, the higher the resolution. Two: PLC analog output module. The analog output module, also known as D/A module, converts the digital quantity sent by the PLC CPU to the analog output module into the analog quantity (voltage or current) that can be received by the external device. The digital signal received by the analog output module is generally 12-bit binary number, and the more digital quantity modules, the higher the resolution. The digital module is to detect the state of the external switching input. Three: Digital input and output signal is the switching signal, 0 or 1, analog signal, there are two, voltage or current signal, generally the signal transmitted by the transmitter, such as the pressure transformer to detect the pressure of the water pipe, it will output an analog signal 4-20ma or 0-10V signal to the PLC, PLC for data processing, This is the difference between a digital input module and an analog input module.

In the input sampling phase, the PLC successively reads all input status and data by scanning and stores them in the corresponding cell in the I/O image area. After the end of the input sampling, the user program execution and output refresh phase. In both phases, even if the input state and data change, the state and data of the corresponding unit in the I/O map area will not change. Therefore, if the input is a pulse signal, the width of the pulse signal must be greater than one scan cycle to ensure that the input can be read in any case. The acquisition of the switching quantity is realized through the PLC input module, which is generally a DC 24V input. The PLC provides a common point, positive or negative, and then the common point is connected to the limit switch and other devices. When the limit is closed, the path is formed and the signal is introduced into the PLC input point. Specifically why the input point to power inside the state is on, is the function of PLC itself, you do not need to tube. Through the analog module, A/D (analog/digital) module, the external weight signal, temperature signal, pressure signal can be introduced, A/D module can accept the signal is 0-10V, 0-5V, -5-5V voltage signal and 0-20MA, 4-20MA current signal. If the signal obtained by the terminal acquisition module is not these standard signals, but also through the transmitter conversion, after the standard signal enters the A/D module, it will be converted by A/D into a number, the specific range is different PLC is not the same, these converted digital quantities, can be used by the program, conversion, processing, and finally get the required data displayed.

The company focuses on DCS, PLC, robot, large servo four systems

The main products are various modules/cards, controllers, touch screens, servo drivers Company advantage: Supply imported original products, professional production of spare parts One year warranty, fast delivery time, complete supply !！！ ① 24 hours email response (12 hours); ② For shipment outside Asia, please contact the seller.

National Instruments Related Products

【 Disclaimer 】 We sell new products and discontinued products, independent channels to buy such special products. Guizhou Yuanmiao Automation Equipment Co., Ltd. is not an authorized distributor, dealer or representative of the products featured on this website. All product names/product images, trademarks, brands and microlabels used on this Website are the property of their respective owners. Descriptions, depictions or sales of products with such names/images, trademarks, brands and logos are for identification purposes only and do not imply any association or authorization with any rights holder. This article is from the official website of Guizhou Yuanmiao Automation Equipment Co., LTD. Please attach this link:http://www.ymdcs.com/NationalInstruments/