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Advantech iDAQ-900 Series, User Manual

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Advantech iDAQ-900 Series User Manual Download Page 34

iDAQ-900 User Manual

24

Low Conversion Rate ADC Analog Input Module

For iDAQ modules measuring slow varying signals such as temperature, strain, or

pressure, the conversion rate of the ADC is usually accordingly slow. To prevent the

sample rate from being limited to a low value due to this characteristic when synchro

-

nizing low conversion rate ADC analog input modules with other types of iDAQ mod

-

ules,  the  sample  rate  of  the  module  and  conversion  rate  of  the  ADC  are

independently set.
If the sample rate is higher than the conversion rate, multiple samples from the same

conversion result are provided. This is shown in Figure 3.13.
 

Figure 3.13 Acquisition of a low conversion rate ADC analog input module

Summary of Contents for iDAQ-900 Series

Page 1: ...User Manual iDAQ 900 Series iDAQ 934 iDAQ 938 iDAQ 964 Industrial DAQ Chassis ...

Page 2: ...assumes no liability under the terms of this warranty as a consequence of such events Because of Advantech s high quality control standards and rigorous testing most customers never need to use our repair service If an Advantech product is defective it will be repaired or replaced free of charge during the warranty period For out of warranty repairs customers will be billed according to the cost o...

Page 3: ...armful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Opera tion of this equipment in a residential area is likely to cause harmful interference In this event users are required t...

Page 4: ...ame x 1 buckle x 1 Startup Manual x 1 iDAQ 964 iDAQ 964 x 1 Screw x 3 Startup Manual x 1 iDAQ 938 iDAQ 938 x 1 USB 3 0 Cable x 1 2 pin connector x 1 DIN Rail Kit x 1 screws x 4 frame x 1 Startup Manual x 1 Warning Warnings indicate conditions that if not observed can cause personal injury Caution Cautions are included to help prevent hardware damage and data losses For example Batteries are at ris...

Page 5: ...r liquid into an opening This may cause fire or electrical shock 13 Never open the equipment For safety reasons the equipment should be opened only by qualified service personnel 14 If any of the following occurs have the equipment checked by service person nel The power cord or plug is damaged Liquid has penetrated the equipment The equipment has been exposed to moisture The equipment is malfunct...

Page 6: ...o avoid electrical shock always disconnect the power from the PC chassis before manual handling Do not touch any components on the CPU card or other cards while the PC is powered on Disconnect the power before making any configuration changes A sudden rush of power after connecting a jumper or installing a card may damage sensitive electronic components ...

Page 7: ...e 2 1 Installation Guide of iDAQ 964 8 2 2 Mounting 9 2 2 1 DIN rail mount 9 2 2 2 Wall mount 10 Figure 2 2 Wall mount dimensions 1 10 Figure 2 3 Wall mount dimensions 2 10 2 3 Using iDAQ Modules 12 Figure 2 4 Installation of iDAQ modules 12 2 4 Signal Connection and Pin Definition 13 2 4 1 Programmable Function Pin Connector 13 Figure 2 5 Pin assignment of PFP connector 13 2 4 2 Power Connector 1...

Page 8: ... Generation 26 Figure 3 18Buffered analog output waveform generation 26 Figure 3 19Start and stop of the analog output waveform genera tion 27 Figure 3 20Start and stop of the analog output waveform genera tion with delay 27 3 5 Digital Input 28 3 5 1 Digital Input Functions 28 Figure 3 21Digital input rising edge interrupts 28 Figure 3 22Digital input falling edge interrupts 28 Figure 3 23Digital...

Page 9: ...tions 37 A 1 Analog Input 38 A 2 Analog Output 38 A 3 Digital Input 38 A 4 Digital Output 38 A 5 Counter 38 A 6 Programmable Function Pins PFP 38 A 7 General 39 A 8 Function Block 40 Appendix B System Dimensions 41 B 1 Chassis 42 B 2 Mounting 44 ...

Page 10: ...iDAQ 900 User Manual x ...

Page 11: ...Chapter 1 1 Start Using iDAQ Chassis ...

Page 12: ... measurements Data are transferred to or from the host computer through a Super Speed USB 3 0 interface iDAQ 964 on the other hand is a four slot data acquisition chassis with similar design as iDAQ 934 It s a chassis module to realize the availability of iDAQ function alities on the AMAX 5000 platform For the actual AMAX model please refer to AMAX series product portfolio 1 2 Product Overview IDA...

Page 13: ...rt Using iDAQ Chassis IDAQ 964 Figure 1 2 Front View of iDAQ 964 iDAQ 938 Figure 1 3 Front View of iDAQ 964 Number Component 1 LED indicators 2 Slots for iDAQ modules 3 Programmable function pin PFP BNC connectors 4 PCI Express interface ...

Page 14: ...ed USB 3 0 port for downstream extension Any USB device can be connected to this port such as another iDAQ chassis This type A con nector also provides a screw hole for use on the lockable USB cable 1 3 4 LED Indicators The LED indicators shows the operational status of the iDAQ chassis Refer to 3 7 Status Indication for detailed description 1 3 5 Programmable Function Pin PFP The programmable fun...

Page 15: ...format Refer to 3 8 for detailed description 1 3 8 Chassis Grounding Screw To ensure the specified EMC performance the iDAQ chassis must be connected to the earth ground point through chassis grounding screw 1 4 Driver Installation The drivers for iDAQ chassis are included in drivers of iDAQ modules You only need to install the drivers for iDAQ modules via XNavi installer so that the iDAQ modules ...

Page 16: ...stalled Device tree view If the software and hardware installation are com pleted you will see iDAQ modules in the Installed Devices list 1 6 Software Development Using DAQNavi SDK DAQNavi SDK is the software development kit for programming applications with Advantech DAQ products The necessary runtime DLL header files software man ual and tutorial videos can be installed via XNavi installer They ...

Page 17: ...Chapter 2 2 Installation Guide ...

Page 18: ...d iDAQ modules are installed the device can be configured using the Advantech Navigator Program automatically installed during driver setup Note that the iDAQ modules would only be recognized when the module is inserted in the iDAQ chassis iDAQ 964 The iDAQ 964 should be used along with AMAX 5000 system Here we take AMAX 5580 as an example The assembly procedure is as follows 1 Insert the PCI expr...

Page 19: ...uckles 4 x screws If anything is missing please contact local sales representative or sales channel The assembly step is as following for the iDAQ 934 1 Screw the two frames onto the chassis 2 Insert the buckle into the frame respectively iDAQ 938 The DIN Rail mounting kit is attached along with the package Please make sure that the mounting kit is well packed and components are included as follow...

Page 20: ...r holes in the iDAQ 938 chassis module slot area Those are the holes reserved for the wall mount The following figures indicate the dimensions for mounting the iDAQ 900 chassis in a wall mounting scenario unit mm Figure 2 2 Wall mount dimensions 1 Figure 2 3 Wall mount dimensions 2 ...

Page 21: ...11 iDAQ 900 User Manual Chapter 2 Installation Guide ...

Page 22: ...sert the iDAQ modules into the iDAQ chassis 1 Insert the module following the guide rail to the end 2 Screw the two screws tight onto the chassis Note that you should evenly bal ance the depth of two screws when you screw them tightly Figure 2 4 Installation of iDAQ modules ...

Page 23: ...ector The iDAQ chassis uses a 2 pin connector as power connector for 10 30 VDC power supply The following is the description for the pins For detailed specification regard ing to power aspect please refer to A7 Figure 2 6 Pin assignment of power connector Pin Name Description PFP Positive terminal of programmable function pin GND Ground Negative terminal of programmable function pin Pin Name Descr...

Page 24: ...iDAQ 900 User Manual 14 ...

Page 25: ...Chapter 3 3 Function Details ...

Page 26: ...gine which means every slot can use different timing signals start trigger stop trigger and sample clock to perform independent acquisition tasks For example one of the slots may be acquiring analog input data at 200 kS s sample rate using an analog input module and another slot may be acquiring digital input data at 10 kS s sample rate using a digital input mod ule Each task can be started and st...

Page 27: ...e is a programmable clock divider on the chassis for each acquisition engine Refer to A 6 Acquisition Engine for possible output frequency Sample clock is always rising edge active 3 2 4 Programmable Function Pin PFP There are two programmable function pins BNC connector on the chassis These pins are bi directional and can be configured for various functions As an input pin it can be the source of...

Page 28: ...er to the document of the individual iDAQ module 3 3 1 Instant Analog Input Acquisition With instant analog input acquisition the software controls the sample timing The analog to digital converter ADC is continuously converting analog input signal by its maximum allowable conversion rate Each time the software sends a read instant analog input sample command the most recent conversion result is s...

Page 29: ...5 Figure 3 5 Buffered analog input acquisition The start and stop of the acquisition are controlled by the start trigger and stop trig ger respectively When configuration is completed the acquisition engine of the iDAQ chassis is at standby state After receiving a start trigger acquisition becomes active and each rising edge of the sample clock acquires one analog input sample The acquisition acti...

Page 30: ...nversion rate is configurable and the sample rate can be much higher by using hardware sample clock signal Time between samples is deterministic 3 3 3 Analog Input Convert Clock Signal Behavior While the frequency of the sample clock can be configured as a deterministic value the convert clock of the ADC may present different behaviors in different types of analog input modules Multiplexed Analog ...

Page 31: ...nabled channels The MUX routes one of the enabled channels for each convert clock in the order of channel number Figure 3 9 shows an example when 3 analog input channels 0 1 and 2 are enabled By this acquisition method the tim ing of conversion for all enabled channels can be as close as possible which approaches the result of a simultaneously sampled analog input module Figure 3 9 Acquisition of ...

Page 32: ...rises the ADC of all enabled channels start con version simultaneously The sampled results represent the analog input values at the same time Figure 3 10 and Figure 3 11 show the block diagram and acquisition behavior of this kind of module Figure 3 10 Simultaneously sampled analog input module block diagram Figure 3 11 Acquisition of a simultaneously sampled analog input module ...

Page 33: ... such as where N 1 2 4 8 etc Before starting acquisition a synchronization pulse will be sent to each sigma delta ADC analog input modules to reset the ADCs at the same time This synchronization pulse ensures that all sigma delta ADCs will provide output data at the same time Due to the internal digital filter operation the sigma delta ADC module exhibits a fixed input signal to output data delay ...

Page 34: ...g limited to a low value due to this characteristic when synchro nizing low conversion rate ADC analog input modules with other types of iDAQ mod ules the sample rate of the module and conversion rate of the ADC are independently set If the sample rate is higher than the conversion rate multiple samples from the same conversion result are provided This is shown in Figure 3 13 Figure 3 13 Acquisiti...

Page 35: ...ults becomes high only when analog input signal becomes higher than the upper threshold value it becomes low only when analog input signal becomes lower than the lower threshold value it remains unchanged otherwise Analog comparison can be selected as rising edge active or falling edge active The upper and lower threshold values are different with different active edge settings For rising edge act...

Page 36: ... write static analog output sample command The ana log output voltage or current remains unchanged at other times This is shown in Fig ure 3 17 Figure 3 17 Static analog output update 3 4 2 Buffered Analog Output Waveform Generation With buffered analog output waveform generation the DAC conversion rate and the duration of the generation is controlled by hardware timing signals The analog output w...

Page 37: ...samples after receiving the corresponding trigger signal As shown in Figure 3 20 the start of gen eration is delayed by 3 samples after receiving a start trigger and the stop of genera tion is delayed by 2 samples after receiving a stop trigger Figure 3 20 Start and stop of the analog output waveform generation with delay Refer to 3 1 1 Signal Routing for possible signal routings and configuration...

Page 38: ...gital input channels can generate software interrupts or events to notice the application about the state change of input signals Interrupts can occur at rising edge falling edge or both edges of the digital input signal as shown in Figure 3 21 Figure 3 22 and Figure 3 23 respectively The enable disable interrupt function and the selection of interrupt edges can be configured independently for eac...

Page 39: ... bit the pattern match interrupt will be generated as shown in Figure 3 24 Figure 3 24 Digital input pattern match interrupt for pattern 10xx0100 Digital Input Debounce Filter To prevent false interrupts due to noise or bouncing in the signal the digital input sig nals can be filtered If digital input filter is enabled transient signals with duration smaller than the filter duration will be consid...

Page 40: ...digital input channels is sampled as shown in Figure 3 26 Figure 3 26 Instant digital input acquisition 3 5 3 Buffered Digital Input Acquisition With buffered digital input acquisition the sample rate and the duration of the acquisi tion is controlled by hardware timing signals All samples are stored in the buffer memory before sending back to the host computer as shown in Figure 3 27 Figure 3 27 ...

Page 41: ... delayed in number of samples after receiving the corresponding trigger signal As shown in Figure 3 29 the start of acquisition is delayed by 3 samples after receiving a start trigger and the stop of acquisition is delayed by 2 samples after receiving a stop trigger Figure 3 29 Start and stop of the digital input acquisition with delay Refer to 3 1 1 Signal Routing for possible signal routings and...

Page 42: ...ed only when the soft ware sends an write static digital output sample command The digital output state remains unchanged at other times This is shown in Figure 3 30 Figure 3 30 Static digital output update 3 6 2 Buffered Digital Output Waveform Generation With buffered digital output waveform generation the rate and duration of the gener ation is controlled by hardware timing signals The digital ...

Page 43: ...layed in number of samples after receiving the corresponding trigger signal As shown in Figure 3 33 the start of gen eration is delayed by 3 samples after receiving a start trigger and the stop of genera tion is delayed by 2 samples after receiving a stop trigger Figure 3 33 Start and stop of the digital output waveform generation with delay Refer to 3 1 1 Signal Routing for possible signal routin...

Page 44: ...a naming rule of combining chassis ID model name and slot number You can change the description in Navigator or just leave it as default The descrip tion is used in your own program in order to get control or device handler from the device Figure 3 34 Device description shown in Navigator LED LED Color Green Yellow Off PWR Power on No power LINK Upstream is connected to SuperSpeed 5 Gb s Upstream ...

Page 45: ...hapter 3 Function Details The rotary switch and the its corresponded number can be found in below table Switch Position Chassis ID Switch Position Chassis ID 0 0 8 8 1 1 9 9 2 2 A 10 3 3 B 11 4 4 C 12 5 5 D 13 6 6 E 14 7 7 F 15 ...

Page 46: ...iDAQ 900 User Manual 36 ...

Page 47: ...Appendix A A Specifications ...

Page 48: ...tions of individual iDAQ digital output module A 5 Counter Please refer to the specifications of individual iDAQ counter module A 6 Programmable Function Pins PFP Channels BNC x 2 Direction Input or output software configurable Input level Logic high 3 5 V min Logic low 1 5 V max Input protection voltage 6 5 V max 0 5 V min Pull down resistor 10 kΩ Input signal frequency 10 MHz max Response time 2...

Page 49: ...0 series Power Consumption 24 W max including modules Module dimensions 139 5 x 84 2 x 100 mm 5 49 x 3 31 x 3 94 Operating temperature 10 to 60 C 4 to 140 F 5 to 85 RH with 0 7m s airflow Storage temperature 40 to 85 C 40 to 185 F Operating humidity 95 RH 40 C non condensing Shock 10G half sine 11 ms Vibration 1 Grms random 5 500 Hz 1hr axis iDAQ 938 Interface SuperSpeed USB 3 0 Data transfer rate...

Page 50: ...iDAQ 900 User Manual 40 A 8 Function Block iDAQ 934 iDAQ 964 iDAQ 938 ...

Page 51: ...Appendix B B System Dimensions ...

Page 52: ...iDAQ 900 User Manual 42 B 1 Chassis iDAQ 934 ...

Page 53: ...43 iDAQ 900 User Manual Appendix B System Dimensions iDAQ 964 iDAQ 938 ...

Page 54: ...iDAQ 900 User Manual 44 B 2 Mounting Wall Mount for iDAQ 934 Wall Mount for iDAQ 938 ...

Page 55: ...45 iDAQ 900 User Manual Appendix B System Dimensions ...

Page 56: ...are subject to change without notice No part of this publication may be reproduced in any form or by any means such as electronically by photocopying recording or otherwise without prior written permission of the publisher All brand and product names are trademarks or registered trademarks of their respective companies Advantech Co Ltd 2023 ...

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