Simcenter SCADAS is a data acquisition hardware platform commonly used for noise, vibration, and durability measurements (Figure 1).
Figure 1: Simcenter SCADAS hardware family.
The Simcenter SCADAS hardware collects data from analog transducers with sampling rates up to 204.8 kHz per channel. The hardware can provide signal conditioning to ICP transducers (accelerometers and microphones), strain gauges, polarized microphones, string pots, and more.
The data is converted from analog to digital on the SCADAS hardware. It can be displayed in real-time on a connected PC or recorded to internal SCADAS storage for later retrieval.
Note!:The name “SCADAS” should not be confused with “SCADA” (no “S” at the end). These are two different things!:
SCADAS: Signal Conditioning and Data Acquisition System – High speed (200 kHz sampling per channel) data acquisition hardware for noise, vibration, durability applications. SCADAS hardware is covered in this article.
SCADA: Supervisory Control and Data Acquisition – Software to gather data in real-time to control equipment and conditions. For example, used in industrial factory settings to monitor equipment. SCADA is not covered in this article.
Simcenter SCADAS is a data acquisition hardware platform made by Siemens Digital Industries Software (Figure 2).
Figure 2: Simcenter SCADAS hardware family.
It is commonly used to measure the noise, vibration, or durability performance of a product under development.
Accelerometers, microphones, and strain gauges are often used with the SCADAS hardware to collect performance data during key development tests. The SCADAS hardware features built-in signal conditioning to power transducers. The analog signals of the transducers are collected at speeds up to 200 kHz per channel.
The collected data is displayed (in real-time and in post processing) using Simcenter Testlab software.
The Simcenter SCADAS systems come in a variety of form factors as shown in Figure 3:
Figure 3: There are four base models of SCADAS hardware: SCADAS XS (handheld), SCADAS RS (ruggedized for outdoor use), SCADAS Mobile/Recorder (field or lab), SCADAS Lab (rack mounted lab based).
The base models include:
SCADAS Lab: 19 -inch rack mounted hardware system for laboratory testing. Wide variety of signal conditioning including strain, accelerometers, charge, and more.
SCADAS Mobile/Recorder: Suitable for lab or mobile testing. Wide variety of signal conditioning including strain, accelerometers, charge, and more. Has built-in battery backup.
SCADAS XS: The SCADAS XS is hand-held portable data acquisition unit with up to 12 voltage/ICP inputs, GPS, CAN bus, Headset, Tachometer inputs.
SCADAS RS: Ruggedized acquisition hardware (IP65) with 250 Gb of internal storage.
These different SCADAS hardware models are described further in the next sections.
The Simcenter SCADAS Mobile and Simcenter SCADAS Recorder are fanless units that have built-in battery backup. The differences between the units:
Simcenter SCADAS Mobile: Comes with two source signal generators, two tachometer inputs, digital CAN bus input, and ethernet connection for use with PC. Depending on the frame size, there can be one (1) to nine (9) slots available for input cards.
Simcenter SCADAS Recorder: Same as the SCADAS Mobile, with the addition of a built-in GPS and a Compact Flash for headless measurements.
The different frame options are shown in Figure 6.
Figure 6: From top to bottom: SCADAS 1-slot frame (SCADAS 01), SCADAS 2-slot frame (SCADAS 02), SCADAS 5-slot frame (SCADAS 05), SCADAS 9-slot frame (SCADAS 09).
A typical Simcenter SCADAS or Simcenter SCADAS Mobile configuration is shown in Figure 7:
Figure 7: A SCADAS Mobile/Recorder consists of modular parts: power supply, control card, input cards contained within a frame.
Because the SCADAS Mobile and SCADAS Recorder have a built-in battery and normal mains power, they are suitable for both laboratory and field testing as shown in Figure 8:
Figure 8: SCADAS Mobile and SCADAS Recorder are suitable for laboratory testing (left) and mobile testing (right).
There are several different types of input cards that can be placed in available slots of a Simcenter SCADAS Lab/Mobile/Recorder (Figure 9).
Figure 9: Simcenter SCADAS input cards have a large variety of signal conditioning options.
Sampling rates can be up to 204.8 kHz on most 8 channel cards. The 24 channel (V24) voltage/ICP card samples up to 51.2 kHz. Sampling rates can be set lower, and it is possible to set the sampling rate on each channel independently of the others.
The cards can be placed in the frames, and the Simcenter Testlab software will recognize the card on startup. The channel input options in the software are automatically updated for reflect the available options in the hardware.
The input card conditioning options for Simcenter SCADAS Lab, Simcenter SCADAS Mobile, and Simcenter SCADAS Recorder include:
Encoder card (Four tachometers OR two incremental encoders)
The signal conditioning type is selectable per channel. For example, on a single card the first input could be a voltage transducer, the second a ICP microphone, and third a strain gauge, etc.
The Simcenter SCADAS RS is a ruggedized data acquisition unit (Figure 15).
Figure 15: Simcenter SCADAS RS is designed for extended use in outdoor settings.
The Simcenter SCADAS RS has ingress protection (for water and dust) ratings of IP66 and IP67 (depending on exact unit), and a temperature range from -40 degrees Celsius to 65 degree Celsius (-40 degrees Fahrenheit to 150 degrees Fahrenheit).
It has a modular construction where different units can be combined as needed (Figure 16).
Figure 16: Simcenter SCADAS RS modular construction allows different units to be combined.
Unit types include a power unit, a recorder (i.e., “brains” unit), and conditioning modules.
The recorder unit contains a GPS (or GNSS) input, four Controller Area Network (CAN) bus inputs, and four digital inputs. It has 240 Gb of storage.
The recorder unit also has built-in software called the Simcenter RS Recorder App (Figure 17) that can be accessed via a browser on any device using the onboard Wi-Fi connection.
Figure 17: The Simcenter RS Recorder App runs on the REC hardware. It can be accessed from a web browser on any device without installing software.
The Simcenter RS Recorder App can be used to setup the test, record data, and view afterwards, Because the software runs on the SCADAS RS itself, no software needs to be installed on the viewing device: Simcenter SCADAS RS Recorder App.