JYTEK JY6301 User manual
JY6301 User Manual
High Accuracy, 24 bits
Resolution Temperature Input
Module for Resistance
Temperature Detector User
Manual
User Manual Version: V2.2.1
Revision Date: Nov 9, 2022
Table of Contents
1.Introduction ........................................................................................................ 1
Overview .......................................................................................................... 1
Main Features .................................................................................................. 1
RTD Temperature Measurement .....................................................................1
Abbreviations ...................................................................................................2
JYPEDIA ............................................................................................................ 2
Learn by Example .............................................................................................3
2.RTD Measurement Specifications ........................................................................ 5
Gain and Offset Errors ..................................................................................... 5
Basic RTD Measurement Accuracy .................................................................. 5
Example of Calculating Gain and Offset Errors ................................................5
3.Temperature Measurement Accuracy ..................................................................6
RTD Measurement Basics ................................................................................ 6
RTD Accuracy ................................................................................................... 7
4.Additional Specifications ..................................................................................... 9
Analog Hardware Specifications ......................................................................9
PFI .................................................................................................................. 10
Trigger ............................................................................................................ 10
Clock ...............................................................................................................11
Front Panel conections .................................................................................. 11
Channel Assignment ...................................................................................... 12
Pinouts for 4-wire Mode ................................................................................13
Pinouts for 2 and 3-wire Mode ......................................................................15
Channel Pin Connections ............................................................................... 17
Mixing 2-wire and 4-wire RTD Measurements ..............................................17
Bus Supported ................................................................................................17
Physical and Environment ............................................................................. 18
5.Software ............................................................................................................18
System Requirements ....................................................................................18
System Software ............................................................................................ 19
C# Programming Language ............................................................................19
JY6301 Hardware Driver ................................................................................ 19
Install the SeeSharpTools from JYTEK ............................................................20
Running C# Programs in Linux ....................................................................... 20
6.Operating JY6301 Modules ................................................................................ 21
Quick Start ..................................................................................................... 21
AI Operations ................................................................................................. 21
6.2.1 Channel Scan Sequence ......................................................................23
6.2.2 ADC Timing Modes ............................................................................. 26
6.2.3 Sampling Rate ..................................................................................... 26
Conversion of Resistance and Temperature ................................................. 29
Trigger Source ................................................................................................30
6.4.1 Immediate Trigger .............................................................................. 30
6.4.2 Software Trigger ................................................................................. 31
6.4.3 External digital trigger ........................................................................ 31
Trigger Mode ................................................................................................. 34
6.5.1 Start Trigger ........................................................................................ 34
6.5.2 Reference Trigger ............................................................................... 36
6.5.3 Retrigger ............................................................................................. 36
Learn by Example 6.5.2 and 6.5.3 ................................................................37
System Synchronization Interface（SSI）for PCIe Modules .........................39
DIP Switch in PCIe-6301 .................................................................................40
7.Calibration .........................................................................................................41
8.Using JY6301 in Other Software ......................................................................... 42
Python ............................................................................................................42
C++ ................................................................................................................. 42
9.Appendix ........................................................................................................... 43
RTD Connections ............................................................................................43
PT100 Temperature/Reisitance Table ........................................................... 46
10.About JYTEK .....................................................................................................48
JYTEK China .................................................................................................. 48
JYTEK Korea and JYTEK in Other Countries ..................................................48
JYTEK Hardware Products ............................................................................48
JYTEK Software Platform ............................................................................. 49
JYTEK Warranty and SupportServices ..........................................................49
11.Statement ........................................................................................................50
Figure 1 Resistance and Temerature Measuremets ..............................................2
Figure 2 JYPEDIA Information ................................................................................ 3
Figure 3 TB- 68 terminal block ...............................................................................4
Figure 4 RTD Temperature Measurement Principle ..............................................7
Figure 5 PXIe/PCIe 6301 Front Panel ...................................................................12
Figure 6 AI Continuous Paraments ...................................................................... 22
Figure 7 Single Channel Continuous Acquisition ................................................. 22
Figure 8 Typical channel scan sequence ..............................................................23
Figure 9 Random channel scan sequence ........................................................... 24
Figure 10 AI MutilChannel Continuouas Paraments ........................................... 25
Figure 11 MultiChannel Continuous Acquisition .................................................25
Figure 12 A / D conversion and sampling ............................................................ 27
Figure 13 Immediate Trigger Paraments .............................................................30
Figure 14 Rising and falling edges of digital signals .............................................31
Figure 15 Digital Trigger Paraments .................................................................... 32
Figure 16 Digial Trigger Acquisition ..................................................................... 33
Figure 17 Start Trigger Mode ...............................................................................34
Figure 18 Start Trigger Paraments .......................................................................35
Figure 19 Reference Trigger mode ...................................................................... 36
Figure 20 Retrigger mode .................................................................................... 37
Figure 21 Retrigger Paraments ............................................................................ 37
Figure 22 Retrigger in Reference Trigger Mode .................................................. 38
Figure 23 Retrigger Complete State .................................................................... 38
Figure 24 SSI Connector in PCIe-6301 ................................................................. 39
Figure 25 DIP Switch in PCIe-6301 .......................................................................40
Figure 26 2-wire RTD connection ........................................................................ 43
Figure 27 3-wire RTD connection ........................................................................ 44
Figure 28 4-wire RTD connection ........................................................................ 45
Table 1 Resistance Measurement Accuracy .......................................................... 5
Table 2 Calculating Gain and Offset Errors ............................................................6
Table 3 JY6301 Temperature Measurement Accuracy ..........................................6
Table 4 Err1：RTD Tolerance Class Information .................................................7
Table 5 Err2：JY 6301 Temperature Measurement Accuracy ............................8
Table 6 Calculating Total Error ...............................................................................8
Table 5 Analog Input Performance ........................................................................9
Table 6 PFI Specification ...................................................................................... 10
Table 7 Trigger Specification ................................................................................10
Table 8 Clock Specification .................................................................................. 11
Table 9 RTD Mode and Channel Assignment ...................................................... 12
Table 10 Pinouts for 4-wire mode RTD Measurement ........................................14
Table 11 Pinouts for 2, 3-wire RTD Measurement .............................................. 16
Table 12 Channel Pin Connections ...................................................................... 17
Table 13 Mixing 2-wire and 4-wire Modes ..........................................................17
Table 14 6301 on different buses ........................................................................ 17
Table 15 Physical and Environment .....................................................................18
Table 16 Supported Linux Versions ..................................................................... 19
Table 17 A/D conversion time at different speed levels ..................................... 26
Table 18 ADC Timing Modes and maximum aggregate sampling rate ............... 28
Table 19 SSI Connector Pin Assignment for PCIe-6301 ....................................... 39
Table 20 Relationship between switch position and card number .....................40
PCIe/PXIe-6301 Series | jytek.com | 1
1. Introduction
This chapter presents the information how to use this manual and operate the
module if you are already familiar with Microsoft Visual Studio and C# programming
language.
Overview
JY6301 is a high-accuracy, high-resolution and high-speed temperature
measurement module designed for PT100 Resistance Temperature Detector (RTD).
JY6301 supports “2-wire”, “3-wire”, and “4-wire” RTD measurements. It can measure
resistance up to 400 Ω to cover the full range of PT100 RTD measurements and the
maximum sampling rate is up to 800 samples per second. It also supports digital and
software trigger. All trigger signals are routed through PFI or PXI chassis backplane.
JYTEK has made major changes in this revision. Version 2.1 users may experience
incompatibility to our new driver because JYTEK has made 2-wire, 3-wire, 4-wire
public properties and removed the previous 3-wire and 4-wire modes. Please contact
JYTEK for assistance if you encounter any incompatibility issues.
Main Features
Up to 0.042% or 170mΩ full scale accuracy for 4-wire RTD measurement
24-bits of resolution
5 sample rates from 5.1 to 830 Sample/s
32 channels for 2 and 3-wire measurements
20 channels for 4-wire measurements
-200 °C ~ +850 °C measurement range (using PT100)
0 ~ 400 Ω range
The balance line resistance compensation is provided under the 3-wire RTD
measurements
128M sample onboard FIFO buffer for analog input
DMA for analog input
Provide resistance or temperature measurement value
Digital/Software Trigger
RTD Temperature Measurement
PCIe/PXIe-6301 Series | jytek.com | 2
Figure 1 shows how JY6301 is typically used to measure the temperature through the
RTDs. A RTD converts a temperature measurement to a resistance which is
measured by JY6301.
Figure 1 Resistance and Temerature Measuremets
Abbreviations
JY6301: JYTEK PCIe/PXIe/TXI/USB-6301
RTD: Resistance Temperature Detector
AI: Analog Input
ADC: Analog to Digital Converter
PFI: Programmable Function Interface
RTD: Resistance Temperature Detector
Ex+: Positive terminal of current Excitation
Ex-: Ngative terminal of current Excitation
RDC: Resistance-to-Digital Converter
OS: Operating System
JYPEDIA
JYPEDIA is an excel file, which contains JYTEK product information, pricing, inventory
information, drivers, software, technical support, knowledge base etc. You can
download a JYPEDIA excel file from our web www.jytek.com. JYTEK highly
recommends you use this file to obtain information from JYTEK.
PCIe/PXIe-6301 Series | jytek.com | 3
Learn by Example
Learn by Example is a unique feature in JYTEK product manual. in this manual. We
provide many sample programs for this device. Open JYPEDIA and search for JY6301
in the driver sheet, select JY6301_Examples.zip. This will lead you to download the
sample program for this device.
Figure 2 JYPEDIA Information
In a Learn by Example section, the sample program is in bold style such as Winform
AI Continuous MultiChannel; the property name in the sample program is also in
bold style such as SamplesToAcquire; the technical names used in the manual is in
italic style such as SampleRate. You can easily relate the property names in the
example program with the manual documentation.
In a Learn by Example section, the experiment is set up as follow. A JY6301 card is
plugged in a desktop computer. JY6301 is connected to a TB- 68 terminal block. A
signal source is also connected to the same terminal block as shown in Figure 3.
PCIe/PXIe-6301 Series | jytek.com | 5
2. Resistance Measurement Specifications
This chapter provides the voltage accuracy specifications of JY6301.
Gain and Offset Errors
JY6301 measures RTD resistance. It has built-in filters to improve the measurement
accuracy of JY6301 accuracy is defined by:
Accuracy = Gain Error (% of reading) + Offset Error (mΩ).
It should be noted when the reading is close to zero, the gain error is very small and
negligible, the offset error is dominant; when the reading is getting close to the full
range, the gain error becomes more significant.
Basic Resistance Accuracy
The basic RTD measurement accuracy is shown in Table 1.
Table 1 Resistance Measurement Accuracy
Please refer to 9.1 for more information on 2,3 and 4-wire RTD connections.
Example of Calculating Gain and Offset Errors
Table 2 shows two examples of calculating the total gain and offset errors. The first
one has a reading value of 100 Ω, while the second one has a reading value of 150 Ω.
For the 100 Ω reading value, the total gain error is 51.8.mΩ, while for the 150 Ω.
PCIe/PXIe-6301 Series | jytek.com | 6
reading value, the gain error is 77.7 mΩ, 1.5 times bigger than the first one. The
offset errors for both reading values are the same 63.9 mΩ.
Table 2 Calculating Gain and Offset Errors
3. Temperature Measurement Accuracy
The temperature measurement is converted from the resistance measurement. The
Table 3 lists the temperature measurement accuracies for different wire configurations.
Table 3 JY6301 Temperature Measurement Accuracy
RTD Measurement Basics
A RTD temperature measurement utilizes the "Seebeck effect", and its basic
measurement principle is shown in the Figure 4 RTD Temperature Measurement
Principle.
PCIe/PXIe-6301 Series | jytek.com | 7
Figure 4 RTD Temperature Measurement Principle
This resistance is measured by JY6301 and is then converted the temperature values
using a conversion formula defiend by the standard.
RTD Accuracy
A RTD has its own accuracy, also called the error tolerance in many international
standards. Table 4 shows the accuracies of common RTD according to standards.
Table 4 Err1：RTD Tolerance Class Information
The accuracies given by Table 4 are valid for unused RTD material only. It is
important that users verify the accuracy of the RTD from the RTD manufacturer.
Temperature Measurement Accuracy by JY6301
A RTD converts a temperature reading to a voltage which is then measured by
JY6301. The standard provides the conversion formula for different thermocouples
PCIe/PXIe-6301 Series | jytek.com | 8
and for different temperature ranges. Table 5 shows the temperature measurement
accuracy using JY6301 for each type and each range of RTD . The operating
conditions are also listed in the table.
Table 5 Err2：JY 6301 Temperature Measurement Accuracy
Total Temperature Measurement Accuracy
The total temperature measurement accuracy consists of the errors due to the RTD
and measurement errors by JY6301 as shown in Figure 5. It can be calculated by:
Total Accuracy Err =
Err1is the RTD error from Table 4 of Section 3.2. Err2is the temperature
measurement accuracy from Table 5 of Section 3.3.
Table 6 shows two calculations for the total accuracies when using a class 1 K-type
RTD to measure 100 ºC and 800ºC temperatures with 2.2Hz sample rate. The two
temperatures fall into different range. Hence the temperature measurement errors
by JY6301 are different.
Table 6 Calculating Total Error
PCIe/PXIe-6301 Series | jytek.com | 9
4. Additional Specifications
Analog Hardware Specifications
Table 5 Analog Input Performance
JY6301’s 32 channels are grouped by 4 banks, each having 8 channels. The sampling
rate per channel must be divided by the sampling rate per bank.
The sample rate parameters are used by JY6301 driver software to select the internal
ADC Timing Mode which ultimate determines how fast the measurement values are
being returned.
PCIe/PXIe-6301 Series | jytek.com | 10
Internally, the ADC operates at the single conversion rate per each bank. For multiple
channels in the same bank, the sample rates are further reduced. For example, if you
chose 800S/s sample rate, the driver software will automatically select level 5 for
you. Your measurement accuracy will be determined by Level 5. For accuracies at
different levels, please refer to Table 3.
PFI
The PFIs(Programable Fuction Interface) are digital IO interfaces and are used for
general purpose IO, a trigger input/ output, a clock-in and clock out. In 6501, the PFI
can only be used for the external digital triggering and cannot be configured as
output.
Table 6 PFI Specification
Trigger
Table 7 Trigger Specification
Table of contents
Other JYTEK Control Unit manuals
