Feature: Data acquisition
Data acquisition Both modern PLCs and PACs come with built-in data acquisition capabilities. In the past, it was not possible to acquire data directly for the control system, as PLCs and PACs lacked the necessary processing power and data storage functions. Data acquisition was only available through expensive, standalone SCADA systems applications, or through third-party soſt ware. However, the evolution of PLCs and
PACs means that recent versions allow manufacturers to gather, store and transmit data directly from the controller, a simpler and cheaper option. Now, retrieving data can be done simply by connecting a PLC’s or PAC’s Ethernet port to a network, or by downloading data from a USB drive. T us, the same controller and input/output modules that control a process or machine, also take care of sensing, measuring and analysing data. T e gathered data can be
stored locally or transferred to another system, normally through the PLC’s or PAC’s Ethernet port. As well as being cheaper, collecting data
from your control system instead of having a dedicated standalone solution saves time and eff ort, especially when a variety of soſt ware packages are involved. Since both PLCs and PACs now come with built-in data acquisition and storage capabilities, the choice between them is no longer conditioned by the data acquisition needs.
The best for the application PACs combine the functionality and reliability of a PLC with the processing capability of an IPC, which is why they are now the preferred type of controller in many manufacturing plants. A single PAC can replace several PLCs or a hybrid system and off er the added advantage that all applications run on one single controller.
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However, the rule of thumb when choosing
a controller is that its capabilities should match the size of the automation project. In other words, there’s no need to invest in a PAC or a hybrid system if these needs can be handled by a traditional PLC. Ultimately, if you choose the appropriate controller for the application’s size and plan for expansion, you will be able to realy on it for decades.
The rule of thumb when choosing a controller is that its capabilities should match the size of the automation project
RIGOL’s Six-Pack: Te New Ones for All Applications and Performance Classes
MSO5000 Series incl. Bode diagram UltraVision II Storage Oscilloscopes Up to 350 MHz bandwidth, 8 GS/sec. real-time sampling rate, 500.000 wmfs/sec.
DS1202Z-E UltraVision Storage Oscilloscope 200 MHz bandwidth, max. 24 Mpts. memory depth, 1 GS/sec. real-time sampling rate
DG2000 Series SiFi II Arbitrary Function Generators Up to 100 MHz bandwidth, 2 analog channels, 250 MS/sec., 16 bit resolution
DSG821(A) / 836(A) High-end HF Signal Generators 9 kHz to 3.6 GHz, amplitude range -110 dBm to +13 dBm, IQ Modulator (A)
MSO8000 UltraVision II Storage Oscilloscope Up to 2 GHz bandwidth, 500 Mpts. memory depth, 10 GS/sec. real-time sampling rate
RSA3015N /3030N / 3045N UltraReal Real-time Spectrum Analyzers Vector Network Analysis mode (VNA), 9 kHz to 4.5 GHz, up to 40 MHz bandwidth
For more information please contact your local RIGOL Partner
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