PET-AR400

Introduction

PET-AR400 is a high speed data acquisition device with a built-in Ethernet communication port for data transfer over a network, and includes 4 high-speed 24-bit differential IEPE input channels (128 kHz sample-and-hold @ one channel).

PET-AR400 also provides 4 kV ESD protection as well as 2500 VDC intra-module isolation. In addition, the 24-bit ADC includes built-in filtering to adjust the appropriate sampling rate and filter out modulator and signal noise. The PET-AR400 is not only suitable for a wide range of mobile/portable measurement applications, but also for precision signal measurement.

The software trigger mode can command the trigger to perform continuous or N data A/D acquisition when needed, on the other hand, when the trigger mode is set to Analog Threshold Trigger mode, the A/D will start collecting N data when the analog input value is above or below a certain voltage.

Features

PC Software Support

Windows

• Microsoft VC, C#, VB.NET SDK API and Demo
• Python and Demo
• NI LabVIEW Toolkit and Demo

Linux

• C/C++ library and Demo
• NET library and Demo
• Python and Demo

Built-in Web Server

Each PET-7H16M/PET-7H24M/PET-AR400 module has a built-in web server that allows users to easily configure, monitor and control the module from a remote location using a regular web browser.

Communication Security

Account and password are required when logging into the PET-7H16M/PET-7H24M/PET-AR400 web server. An IP address filter is also included, which can be used to allow or deny connections with specific IP addresses.

Modbus/TCP Protocol

The Modbus/TCP slave function on the Ethernet port can be used to provide data to remote HMI/SCADA software built with Modbus/TCP driver

Automatic MDI/MDI-X Crossover for Plug-and-Play
RJ-45 port supports automatic MDI/MDI-x that can automatically detect the type of connection to the Ethernet device without requiring special straight or crossover cables.

Highly Reliable Under Harsh Environment
PET-7H16M/PET-7H24M/PET-AR400 is housed in a metal shell/case with a column-like ventilator that helps to cool the working environment inside the shell/case.

• Operating Temperature: -25 ~ +75 °C
• Storage Temperature: -30 ~ +80 °C
• Humidity: 10 ~ 90 % RH (non-condensing)

PoE (Power over Ethernet)

"P" of PET-7H16M/PET-7H24M/PET-AR400 means PoE function. The module has integrated Power-over-Ethernet (PoE), it allows power and data to be carried over a single Ethernet cable, so a device can operate solely from the power it receives through the data cable. This innovation allows greater flexibility in office design, higher efficiency in systems design, and faster turnaround time in set-up and implementation. The module feature true IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) using both Ethernet pairs (Category 5 Ethernet cable). The module can receive power from an auxiliary power sources like AC adapters and battery in addition to the PoE enabled network. This is a desirable feature when the total system power requirements exceed the PSE’s (power sourcing equipment) load capacity. Furthermore, with the auxiliary power option, the module can be used in a standard Ethernet (non-PoE) system.

When using PoE devices like PET-7H16M/PET-7H24M/PET-AR400, you can choose ICP DAS “PoE” switch —“NS-205PSE” as the power source, NS-205PSE automatically detects the connected devices whether they are PoE devices or not. This mechanism ensures NS-205PSE to work with both PoE and non-PoE devices coordinately at the same time. Being as a power source for PoE devices, NS-205PSE requires its power input ranging from +46 ~ +55 VDC.

Data Transmission Mode

1. Continuous Transmission

After starting A/D acquisition, data is continuously transmitted to the Host PC.

2. N Sample Acquisition

a. After starting A/D acquisition, the data will be temporarily stored in the memory on the PET-AR400 module, and wait until a command is received from the Host PC, before transferring the collected data to the Host PC.

b. The memory capacity allows temporary storage of up to 15 million data samples, Storage time:

b.1. 117.2 seconds at a sampling rate of 32 kHz.

b.2. 117.2 seconds at a sampling rate of 128 kHz.

A/D Trigger Mode

1. Software A/D Data Acquisition Mode

The A/D acquisition parameters are configured via a command from the Host PC. The continuous A/D acquisition or the acquisition of N data samples begins after the command is triggered.

2. Analog Threshold Trigger Mode

The A/D acquisition parameters are configured via a command from the Host PC, and then triggered via an external electrical signal. The A/D acquisition of the N data samples is then started.

Analog Threshold Trigger Mode

Analog Threshold Trigger is triggered when the voltage signal of the specified analog input channel is higher or lower than a certain voltage setting. In addition, the user can also specify the trigger voltage level range of the input signal. Once the signal leaves the high and low level region or the signal enters the high and low level region, it is triggered to start the acquisition.

1. Above High: The signal is triggered above the high level and collects N data.

2. Below Low : The signal is triggered below the low level and collects N data.

3. Leaving-Range : Trigger when the signal leaves the high and low level region, collect N data.

4. Entering-Region : Trigger when the signal enters the high and low level region, collect N data.

Applications

• Vibration measurement and analysis application
• Machine condition monitoring
• Predictive maintenance