ICP DAS USA PET-7H24M Operator's manual

PET-7H24M
Quick Use Manual
Version 1.0.1, September 2020
Service and usage information for
Written by Sean
Edited by Anna Huang
PET-7H24M

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Document Description
This document will guide users to quickly use the PET-7H24M module.
1. Preceding procedure：PET-7H24M network settings.
2. Introduction to acquisition and trigger mode:Brief description of
PET-7H24M data acquisition and trigger mode.
3. Simple to use：Simple operation through the HSDAQ Utility, collecting
PET-7H24M data, and displaying the data in the utility chart.
4. Program development :
VC/.NET program: A brief description of the function calls process
and program description according to different acquisition and trigger
modes.
5. LabVIEW development: Simply use the process description.
Table of Contents
Document Description ...........................................................................2
Table of Contents...................................................................................2
Preceding Procedure..............................................................................3
Introduction to Acquisition and Trigger Mode........................................7
Simple to Use.........................................................................................9
Program Development.........................................................................12
LabVIEW Development ........................................................................25

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Preceding Procedure
There are two ways for the PET-7H24M module getting the power. One is
through Ethernet by a PoE switch; the other is as usual through wiring by
an external power.
POE Power Supply
Connect PC to the Ethernet port via the PoE switch.
Connect the power supply to the PoE switch, which supplies power
to the PET-7H24M.

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External Power Supply
Connect PC and PET-7H24M to the Ethernet Switch.
Connect the power supply to the switch and PET-7H24M. (The
external power supply should be in the range of +12 VDC to 48 VDC)
Network Settings
The factory default settings for the PET-7H24M network are as follows:
Item
Default
IP Address
192.168.255.1
Subnet Mask
255.255.0.0
Gateway
192.168.0.1
The way to modify the PET-7H24M network configuration settings is
through the HSDAQ Utility.

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Steps
1. Obtain and install the HSDAQ Utility in the following path
https://www.icpdas.com/tw/download/show.php?num=2327
2. Run HSDAQ Utility
3. Press choose “Search” from the “Tools” menu
4. The searched PET-7H24M module will be displayed on the screen of
this program.

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5. Select the PET-7H24M to be set, and the following setting screen will
appear.
6. Write the new setting value in the IP address/Mask/Gateway/Alias
field and press the "OK" button
7. Wait for the PET-7H24M to reboot. (After reboot, the new setting
value will take effect)

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Introduction to Acquisition and Trigger Mode
PET-7H24M Data Acquisition and Trigger Mode Description
Two data acquisition methods and multiple trigger modes provide
high-speed acquisition of input values of the AI channel. The figure below
shows the corresponding effective operating frequency range for the
acquisition and trigger modes.
Acquisition
Trigger
Continuous
N Sample
Software AD
20 ~ 60 kHz
60 ~ 200 kHz
Analog Input
-
20 Hz ~ 128 kHz
Data Acquisition and Transmission Mode
1. Continuous transmission
(Maximum sampling rate of 60 kHz
per channel)
2. After collecting N data samples, the
data is transferred to the Host PC
(Maximum sampling rate of 128
kHz per channel)

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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 Input
Analog Input 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.

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Simple to Use
The HSDAQ Utility can be used to perform simple AI high-speed
acquisition operations. The collected data is automatically stored on the
PC disk and the data is displayed on the chart. This tool can be used as an
entry test and a simple diagnostic.
Steps
1. Execute the HSDAQ Utility. Enter
the IP address of the PET-7H24M
in the following screen and click
the “Connect” button.
2. Set the parameter value of AI
high speed acquisition
2.1. Select Gain, which is +/-10V、+/-5V、+/-2.5V、+/-1.25V、+/-0.625V、
+/-0.3V、+/-0.15V、+/-0.075V、+/-0.04V、+/-0.02V
2.2. Select the number of AI channels scanned
2.3. Select trigger mode
0: Software AD Trigger
1: Analog Input
2.4. Input Sample Rate (20 ~ 128 kHz)

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2.5. Set the number of data acquisition (Sample Count)
The setting value is 0. It indicates Continuous Acquisition mode.
Continue to store data continuously. Press the “Stop” button to
stop the acquisition.
The setting value is greater than 0. It indicates N Sample
Acquisition mode. When the number of acquisition data
reaches the target count, the acquisition will stop automatically.
2.6. After the above steps are completed, press the “Set” button to
write the setting value to the PET-7H24M module.
3. Start AI high speed data acquisition
2.1. Press the Start button. If the setting value of Sample Count is
greater than 0, the acquisition will be stopped automatically when
it reaches the set value. If the setting value of Sample Count is 0,
you need to manually click Stop button to stop.

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2.2. Select the folder where the data to be displayed is located, and
the folder is layered to 1.IP address 2. Date.
2.3. Select which data file to display
2.4. The top of the following UI is the waveform diagram drawn by the
data. Below is the data of each channel. Each page displays 1000
data.

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Program Development
Development Preparation
Get the library used for program development
PET-7H24M SDK library supports 32/64 bit Windows 7/8/10.
The files in PET-7H24M DAQ SDK Library
Files
Description
HSDAQ.dll
HSDAQ.lib
HSDAQ.h
Used for VC programs
HSDAQNet.dll
Used for .Net programs
User can get the SDK library files from web site, the file path is as below
https://www.icpdas.com/en/download/show.php?num=2326
Before using HSDAQ.dll & HSDAQNet.dll, you must install
HSDAQ_SDK_package.exe to use the dll correctly. The program and SDK
get the same path. Need to restart the computer after installation.
For installation steps, please refer to "HSDAQ API Reference Manual".
Prepare Development Tools
Install Microsoft Visual Studio 2008 or later on PC

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How to use the SDK development program in the Visual Studio
development environment
Refer to the HSDAQ API Reference Manual in the following path.
https://www.icpdas.com/en/download/show.php?num=2599
In Section 1.4.1, learn more about developing C# programs using SDK in
Visual Studio.
In Section 1.4.2, learn more about developing VB.NET programs using SDK
in Visual Studio.
In Section 1.4.3, learn more about developing VC programs using SDK in
Visual Studio.
Demo program download path:
https://www.icpdas.com/en/download/show.php?num=2328

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Example Description
Use the program to develop high-speed AI acquisition functions to
provide various sample programs according to different trigger modes and
data acquisition/transmission methods. For high-speed AI acquisition
related API function description and function call flow, please refer to the
HSDAQ API Reference manual in the following path, Section 2.4 High
Speed IO API.
https://www.icpdas.com/en/download/show.php?num=2599
The following two modes of high-speed acquisition examples and a
sample data logger example.
1. Continuous mode acquisition and software AD trigger of high-speed
acquisition
2. N sample mode acquisition and software AD trigger of high-speed
acquisition
3. N sample mode acquisition and software AD trigger of data logger
example.

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Continuous mode acquisition and software AD trigger of
high-speed acquisition
API function call process chart
Create a connection to the device and
initialize the device
Set the AI scan parameter
Sampling rate <=60 KHz
Trigger mode = 0 (0: Software trigger)
TargetCnt = 0 (0: Continuous mode)
Start data acquisition of scanning AI
channels
Determine how much data is in the buffer
Read the data from the buffer
Whether stop data acquisition manually
Stop data acquisition
Release the device from system
Exit
HS_SetAIScanParam
HS_Device_Create
HS_GetAIBufferHex
HS_StartAIScan
HS_Device_Release
HS_StopAIScan
Stop
Exit
HS_GetAIBuffer
Status
Yes
No
No
Yes

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[C program Snippet code]
HANDLE hHS;
WORD BufferStatus=0;
float fdataBuffer[10000];
unsigned long ulleng=0;
hHS = HS_Device_Create(“192.168.1.1”);
// Create a connection to the device and initialize the device
HS_SetAIScanParam(hHS, 4, 0, 0, 20000, 0, 0,0);
/*Set the AI scan parameter
Sampling rate =20 kHz
Trigger mode = 0 (0: Software trigger)
TargetCnt =0 (0: Continuous mode)
*/
HS_StartAIScan (hHS);
// Start data acquisition of scanning AI channel
ret=HS_GetAIBufferStatus(hHS,&BufferStatus,&ulleng);
// Determine how much data is in the buffer
if(ret==false){
printf("Error code 0x%x\r\n",HS_GetLastError());
}
else
{
if(ulleng)
{
readsize=HS_GetAIBuffer(hHS,fdataBuffer, ulleng); // Read the
data from the buffer
…

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}
}
HS_StopAIScan (hHS); // Stop data acquisition
HS_Device_Release (hHS); // Release the device from system

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N sample mode acquisition and software AD trigger of
high-speed acquisition
API function call process chart
Create a connection to the device and
initialize the device
Set the AI scan parameter
Sampling rate 20 ~ 128 KHz
Trigger mode = 1 (1: N Sample Mode)
TargetCnt > 0 (> 0: N Sample Mode)
Start data acquisition of scanning AI
channels
Determine total number of samples reaches
the target count
Read the data from the buffer
Stop data acquisition
Release the device from system
Exit
HS_SetAIScanParam
HS_Device_Create
HS_GetAIBufferHex
HS_StartAIScan
HS_Device_Release
HS_StopAIScan
Exit
HS_GetAIBuffer
Status
No
Yes

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[C program Snippet code]
HANDLE hHS;
WORD BufferStatus=0;
float fdataBuffer[10000];
unsigned long ulleng=0;
hHS = HS_Device_Create(“192.168.1.1”);
//Create a connection to the device and initialize the device
HS_SetAIScanParam(hHS, 4, 0, 1, 100000, 2000000, 0,0);
/*Set the AI scan parameter
Sampling rate =100 kHz
Trigger mode = 1 (1: N sample mode)
TargetCnt =2000000 (2000000 samples for acquisition)
*/
HS_StartAIScan (hHS);
//Start data acquisition of scanning AI channel
ret=HS_GetAIBufferStatus(hHS,&BufferStatus,&ulleng);
// Determine how much data is in the buffer
if(ret==false){
printf("Error code 0x%x\r\n",HS_GetLastError());
}
else
{
if(BufferStatus>2) //AI buffer overflow
{
/* 2: AD_BUF_OVERFLOW
4: AD_SCAN_STOP
8: AD_DATA_SAMPLING_TIMEOUT
*/
break;

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}
if(ulleng==targetCnt) //The total sample of data in the buffer
reaches the target count
{
unsigned long size=targetCnt;
readsize=HS_GetAIBufferHex(hHS,(WORD *)dataBuffer,size);
// Read the N sample of data from the buffer
}
}
HS_StopAIScan (hHS); // Stop data acquisition
HS_Device_Release (hHS); // Release the device from system