CFP-RTD-122 - NI Temperature Input Module

Description

The NI cFP-RTD-122 (Part Number: 777318-122) is a flexible module for Compact FieldPoint, which can be utilized to measure thermocouples, millivolt-level voltages, thermistors, and 2-, 3-, and 4-wire RTDs. The cFP-RTD-122 is ideal for obtaining temperatures with extreme preciseness. The device has 8 input channels. The Compact FieldPoint platform is meant for industrial control applications that complete advanced embedded control, data logging, headless operation, and Ethernet connection. This module has 16-bit resolution for precise measurements. The user can link straight to industrial sensors or units under test with the safety isolation function of this module. Other advantageous features of the cFP-RTD-122 Temperature Input Module include Hot plug-and-play operation, simple configuration, self-diagnostics, and more. The device has consumes 350 mW of power from the network module. The NI cFP-RTD-122 mounts on to a Compact FieldPoint backplane, which delivers functioning power to the module. Compatible Compact FieldPoint backplanes are cFP-BP-x. When the user installs the cFP-RTD-122 module onto a powered backplane, it does not interrupt the procedure of the bank. This Temperature Input Module has eight input channels, which have a common ground reference that is separated from other modules in the FieldPoint system. Every channel pulses a 0.25 mA excitation current out of the EX+ terminal. Then, the excitation current comes back through the COM terminal. The SENSE terminal then measures resistance and makes up for lead resistance mistakes. Next, every channel is filtered and sampled by a 16-bit analog-to-digital converter. The NI cFP-RTD-122 module can also be utilized to measure resistance in ohms. The user can complete measurements from RTDs of types that the module does not directly support, including 120 Ω nickel RTDs. The cFP-RTD-122 weighs 3.7 oz. It has recommended operating and storage temperature ranges of –40 to 70 °C and –55 to 85 °C respectively, a non-condensing relative humidity range of 10 to 90%, random and sinusoidal operating vibrations of 5 grms and 5 g respectively–all at a frequency range of 10 to 500 Hz. The temperature input module is designed to comply with the following electrical safety standards: IEC 61010-1, EN 61010-1, UL 3121-1, UL 61010C-1, and CAN/CSA C22.2 No. 1010.1.

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/