UNI-T UT3500 Series User Manual Download

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UT3500 series

User Manual

10. Remote Communication

This chapter mainly covers the following:



RS-232 Interface and Connection



RS-485 Interface



USB Interface



Communication Protocol

The instrument uses RS-232 interface (standard configuration) to communicate with the

computer to complete all the functions. Through standard SCPl commands, users can also

easily compile various collection systems suitable for themselves.

10.1 RS-232C

RS-232 is a widely used serial communication standard, also known as asynchronous

serial communication standard, used to realize data communication between computers

and between computers and peripherals. RS is the abbreviation of "Recommended

Standard", and 232 is the standard number. This standard is officially published by the

Electronic Industry Association (ElA) in 1969. It stipulates that it is transmitted via a data

wire one bit at a time.

The configuration of most serial ports is usually not strictly based on the RS-232 standard:

each port uses a 25-core connector (now computers basically use a 9-core connector).

The most commonly used RS-232 signals are shown in the table:

Table 10-1- Common RS-232 Signals

Signal

Symbol

Pin No. of 25-Core

Connector

Pin No. of 9-Core

Connector

Request to Send

RTS

Clear to Send

CTS

Data Set Ready

DSR

Data Carrier Detect

DCD

Data Terminal

Ready

DTR

Transmit Data

TXD

Receive Data

RXD

Ground

GND

Request to Send

RTS

In addition, RS232 has a minimum subset, which is also the connection method used by

the instrument.

Summary of Contents for UT3500 Series

Page 1: ...UT3500 Series Battery Internal Resistance Tester User Manual www uni trend com ...

Page 2: ...e maintenance fee and the costs caused by the maintenance shall be borne by the user and the instrument shall be maintained by the company for life If the original purchaser sells or transfers the product to a third party within one year from the date of purchase of the product the warranty period of one year shall be from the date of the original purchase from UNI T or an authorized UNI T distrib...

Page 3: ...r integrated products if such alteration or integration leads to an increase in time or difficulty of product maintenance This warranty is written by UNI T for this product and it is used to substitute any other express or implied warranties UNI T and its distributors do not offer any implied warranties for merchantability or applicability purposes For violation of this guarantee UNI T is responsi...

Page 4: ...se the instrument beyond the way specified in this user manual If it exceeds the range the protective measures provided by the instrument will become invalid Warning 1 For the instrument model UT3562 do not apply AC voltage and DC voltage exceeding 100V to the test terminal otherwise the instrument will be damaged 2 For the instrument model UT3563 do not apply AC voltage and DC voltage exceeding 4...

Page 5: ...3 2 1 Packing List 13 2 2 Requirements of Power Supply 14 2 3 Operating Environment 14 2 4 Cleaning 14 2 5 Handle of Instrument 14 3 Preparation before Measurement 15 3 1 Power on and Run 15 3 1 1 Power on and off 15 3 2 Connection of Test Terminals 16 3 2 1 Introduction of Test Lead 16 3 2 2 Connection of Test Lead 16 3 3 Measurement Method of DUT 17 3 4 Set Zero and Calibrate 18 3 4 1 Short Circ...

Page 6: ...t Function 34 6 2 3 Save Data to U Disk 35 7 Comparator Sorting 36 7 1 Comparator Setting 36 7 1 1 Beep Setting 36 7 1 2 Comparison Mode Selection 37 7 1 3 Nominal Value Input 37 7 1 4 Lower and Upper Setting 37 7 2 Display and Discrimination 38 7 2 1 Display after Opening the Comparator 38 7 2 2 Example of Qualified Discrimination 39 7 2 3 Example of Unqualified Discrimination 39 8 System Configu...

Page 7: ...ply 48 9 2 2 Electrical Parameters 48 9 2 3 Schematic Diagram of the Input Terminal 49 9 2 4 Schematic Diagram of the Output Terminal 49 9 2 5 Connection Method of the Input Circuit 49 9 2 6 Connection Method of the Output Circuit 50 9 3 Periodic Table 52 10 Remote Communication 52 10 1 RS 232C 53 10 1 1 RS232C Interface 54 10 1 2 Connection Mode 54 10 2 RS485 Interface 54 10 3 USB Interface 55 10...

Page 8: ...V 1 1 1 Features of Product Series 4 3 inch large screen and LCD display the battery internal resistance and the voltage can be displayed at the same time It can test resistance ranges from 0 0001mΩ 3 2kΩ and can measure high voltage battery pack up to 400V UT3563 With measurement characteristics including high precision high resolution and ultra high speed it provides 0 5 resistance accuracy and ...

Page 9: ...ection lithium battery lead acid battery button battery and other high speed mass production line inspections 1 1 2 Main Functions of the Product Function UT3562 UT3563 Measurement Range Voltage Range 0 00001 101 000V 3 Ranges Voltage Range 0 00001 404 000V 3 Ranges Resistance Range 0 0001mΩ 3 2kΩ 7 Ranges The modes of resistance and voltage range selection are divided into automatic and manual Te...

Page 10: ...y compared with the upper and lower limits Beep three options OFF PASS FAIL Interface RS 232 USB Remote Control It supports a baud rate up to 115200bps and is compatible with SCPI protocol Modbus Handler Interface I O port with full opto coupler isolation and built in pull up resistor It supports internal 5V and external maximum 35V power supply Input trigger signal output all sorting comparison r...

Page 11: ...3 4 test terminals SOURCE measuring terminal and SENSE sensing terminal 4 The test key is used to display the result of the measurement object internal resistance voltage etc The setup key is used to set measurement parameter configuration The key LOCK can disable other keys Long press for 1s to unlock 5 The numeric keyboard The number keys are used to enter numeric values the plus minus and delet...

Page 12: ...ed The test lead and the object under test are not effectively connected to form a measurement When the measurement interface displays OL it means that the measured value is out of the range It means that the measured value meets the required setting range of the comparator It means that the measured value exceeds the required setting range of the comparator It means that the measured value is low...

Page 13: ...ion This chapter mainly covers the following Packing List Requirements of Power Supply Operating Environment Cleaning Handle of Instrument 2 1 Packing List Before using the instrument please first 1 Check whether the appearance of the product is damaged scratched or has other defects 2 Check whether the instrument accessories are missing according to the instrument packing list If it is damaged or...

Page 14: ...500 series can only be used under the following power supply conditions Voltage 100VAC 240VAC Frequency 50Hz 60Hz Warning In order to prevent the risk of electric shock please connect the ground wire of the power supply If the user replaces the power cord please make sure that the ground wire of this power cord is reliably connected 2 3 Operating Environment UT3500 series must be used under the fo...

Page 15: ...he same time with hands gently pull it to both sides and then rotate the handle The handle can be adjusted to four positions as shown in the figures below Figure 2 5 1 Original Position of Figure 2 5 2 Position of Instrument Handle Instrument Handle in Test Status Figure 2 5 3 Handle Removal Position Figure 2 5 4 Handle Lift Position ...

Page 16: ...of the test lead and the instrument test terminals Warning Please make sure that the power supply voltage is consistent with the supply voltage before turning on the power otherwise the instrument will be burnt out Please be sure to connect the main power plug to a power socket with ground protection Do not use a wiring board without ground protection Before operating the instrument you should fir...

Page 17: ... the test line please make sure that the power switch of the instrument is OFF 2 Make sure there is no connection at the top of the test leads of the four terminals 3 Connect the test leads of the four terminals to the input terminals of the instrument according to the method shown in Figure 3 2 2 The specific operations are as follows Connect the black test lead to the black terminal hole of the ...

Page 18: ...se the attached test lead for testing Warning It is prohibited to connect the AC current source and voltage source directly to the test terminals 3 3 Measurement Method of DUT After correctly connecting the test leads to the Sense and Source test terminals of the instrument please correctly connect the test leads to the DUT as follows Note that the red test pen or test clip should be connected to ...

Page 19: ...rs The measured resistance value may be very small such as 3mΩ and 30mΩ range When the test current flows through the resistance the voltage signal generated will be very weak and the maximum is only a few mV so the position length and shape of the test lead may all have effects on the measurement Therefore the positions and conditions during setting zero should be the same as those during subsequ...

Page 20: ...ng Figure 3 4 2 Description of Alligator Clip Teeth Engagement Figure 3 4 3 Parallel Status after the Red and Black Alligator Clips Are Engaged Correct Short Circuit Method of the Crown Probe Test Pen The center probe of the crown probe test pen is the Sense end and the outer cylindrical probe is the Source end First place the probes of the crown probe test pen as shown in Figure 3 4 4 a Make sure...

Page 21: ... Source Figure 3 4 4 b Crown Probe Test Pen Short Circuit Diagram b Finally only when the three red dots as shown above are actually touched the next setting zero step can be performed Correct Short Circuit Method of the Kelvin Test Lead Lay the tip end of the test clip of the Kelvin test lead crosswise as shown in Figure 3 4 5 Note The short upper handle of the red test clip and the short upper h...

Page 22: ...age 2 On the lower side of the TEST page select the function key corresponding to SET ZERO to enter the SET ZERO page 3 Use the arrow key to move the cursor from SET ZERO to the ON field 4 Press the function key to select SET ZERO and there will be a reminder of short circuit the test terminals at the bottom of the screen Please correctly short circuit the test terminal according to the above sect...

Page 23: ...als are correctly short circuited according to step 4 above 4 Test Measurement Page 4 1 Test Page The TEST page is mainly used to display the measurement results and sorting results Five common functions can be set on this page including TRIGGER The Trigger Mode of the Measurement FUNC Parameters of Measurement RANGE Setting and Display of Resistance and Voltage Range SPEED Test Speed LOG STAT Ple...

Page 24: ...nt is in the waiting state Please refer to the Handler Interface Remote Send the command TRIGGER to measure once and return the measured value Setting Steps 1 Press Test key to enter the main page of TEST 2 Use the cursor key to move the cursor to the TRIGGER field 3 According to your own needs use the function keys at the bottom of the screen to select the desired trigger mode 4 1 2 Function The ...

Page 25: ...p page 2 Use the cursor key to move the cursor to the R RANGE field 3 According to your own needs use the function keys at the bottom of the screen to select the desired range method and range If you select AUTO the instrument will automatically select the corresponding best test range name and range if you select MANUAL the instrument will always use the user specified range for testing INC means...

Page 26: ...0001 60 6000V 0 6V 0 AUTO 0 00001 6 06000V Setting Steps 1 Press the Test key to enter the TEST page or press the Setup key to enter the Setup page 2 Use the cursor key to move the cursor to the V RANGE field 3 According to your own needs use the function keys at the bottom of the screen to select AUTO MANUAL INC or DEC When the measured value exceeds the setting range OL is displayed on the test ...

Page 27: ... the manually saved measurement data on the instrument screen as shown in Figure 4 2 1 Figure 4 2 1 VIEW DATA Page On the VIEW DATA page you can also use the function keys at the bottom of the screen to perform the following operations on the data Save to USB Disk After inserting the U disk this function key can save the data in the U disk Clear This function key can clear all data Page Up Page Do...

Page 28: ...capacity is 128G When the data is being collected it may cause the screen capture to fail which can be executed after the collection is completed 5 Setup Setting 5 1 Parameters of Measurement All the settings related to the measurement are operated on the SETUP page TRIGGER FUNC R RANGE V RANGE and SPEED can also be set on the TEST page For the setting of these parameters please refer to chapter 4...

Page 29: ...inimum delay time is 1ms Setting Steps 1 Press the Setup key to enter the SETUP page 2 Use the cursor key to move the cursor to the DELAY field 3 According to your own needs use the function keys at the bottom of the screen to select the delay function and use the numeric keyboard to enter the delay time 5 1 3 Self Calibration Switch The self calibration function can remove the bias voltage and ga...

Page 30: ...o enter the SETUP page 2 Use the cursor key to move the cursor to the CURRENT field 3 According to your own needs use the function keys at the bottom of the screen to select CONTINUOUS continuous current output or PULSE 5 2 Catalog Press the Setup button to enter the SETUP page and press the function key corresponding to the CATALOG at the bottom of the screen to enter the CATALOG page Catalog all...

Page 31: ...page through the function keys at the bottom of the SETUP or COMP SET page 2 Use the cursor keys to select the Auto Save field 3 According to your own needs use the function keys at the bottom of the screen to select ON or OFF 5 2 3 File 0 File 9 The user can specify a total of 10 files from 0 to 9 to save load and delete Function Keys Description of Function SAVE Save all settings to the current ...

Page 32: ...he cursor keys to move the cursor to the LOG STAT field 3 Use the function key to select logging open the data logging function and set the data record buffer to the maximum 10000 groups You can also directly use the numeric keyboard to input the required buffer size For example 50 In to set the buffer size to 50 groups 4 After enabling there will be a LOG field on the TEST page If you need to log...

Page 33: ...ou can save the data to the U disk at any time as shown in Figure 6 1 2 The test data is saved in the TEST DATA directory of the model folder and the file format is CSV Figure 6 1 2 Data Folder in U Disk In the Windows operating system use Excel to open the file Due to the default format of Excel you need to correctly modify the cell properties according to the three operation steps and the time r...

Page 34: ...select Set Cell Format select Custom on the left side of the opened cell format window and enter yyyy m d hh mm ss in the red box As shown in Figure 6 1 5 2 Select the resistance field and set its cell properties to scientific notation 4 decimal places as shown in Figure 6 1 6 3 Select the voltage field and set its cell properties to scientific notation 5 decimal places Figure 6 1 5 Custom Time Fo...

Page 35: ...Process capability is sufficient 1 00 Cp CpK 1 33 Process capability is appropriate Cp CpK 1 00 Process capability is insufficient Process capability index and some related formulas Process Capability Index Formulas Average Mean Population Standard Deviation σn Sample Standard Deviation s σn 1 Process Capability Index Deviation Cp Process Capability Index Offset CpK In the above formulas a n repre...

Page 36: ...n the TEST page and the following fields will be displayed at the bottom of the test page The fields R No and V No are valid quantities and cannot be changed The fields R CpK and V CpK are the statistical parameter settings and there are other statistical parameters that can be selected as listed in the following table Function Key Function MEAN x Average MAX Maximum MIN Minimum σ Population Stand...

Page 37: ...nly be set after opening LOG STAT on the SYSTEM CONFIG page After the data statistics function is turned on the instrument needs to perform complex calculations on multiple parameters and the measurement speed will drop slightly Once the data recording is started the test page will be locked and cannot be switched to other pages In the external trigger state before switching to other pages data lo...

Page 38: ... own needs use the function keys at the bottom of the screen to select PASS FAIL or OFF 7 1 2 Comparison Mode Selection The instrument can compare resistance and voltage simultaneously or separately There are 3 comparison modes to choose from a Absolute Value Comparison ABS Absolute Value Measured Value Nominal Value b Percentage Comparison PER Percentage Measured Value Nominal Value Nominal Value...

Page 39: ... enter the data and the unit should use the function keys to select 7 1 4 Lower and Upper Setting Setting Steps 1 Press the Test or Setup key and select COMP SET with the function key at the bottom of the screen to enter the COMP SET page 2 Use the cursor keys to move the cursor to the R COMP or V COMP field to select ON 3 Move the cursor to the corresponding UPPER or LOWER field use the number ke...

Page 40: ...at the test clip or test pen is not properly connected to the object under test Please connect the test clip or test pen to the object under test correctly to enter the state to be measured 7 2 2 Example of Qualified Discrimination Figure 7 2 2 Example of Qualified Discrimination Page When the voltage or resistance measurement value is within the setting range of the comparator the judgment symbol...

Page 41: ... result is unqualified the symbol is LO means the measurement value is lower than the comparator setting specification requirements and HI indicates that the measured value exceeds the specifications set by the comparator If the buzzer is set to unqualified buzzer at this time the instrument will emit a disqualified buzzer for this unqualified situation If the buzzer setting is OFF at this time th...

Page 42: ...LANGUAGE 3 According to your own needs press the function key at the bottom of the screen to select Chinese CHN or ENGLISH English 8 1 2 Key Beep Setting The instrument keys can be set with or without key prompt sound Setting Steps 1 Press the Test or Setup key and select SYSTEM CONFIG with the function key at the bottom of the screen to enter the SYSTEM CONFIG page 2 Use the cursor keys to move t...

Page 43: ...FIG with the function key at the bottom of the screen to enter the SYSTEM CONFIG page 2 Use the cursor keys to move the cursor to the ACCOUNT field 3 According to your own needs press the function key at the bottom of the screen to select administrator or user 4 Regarding the account password you can choose to delete the password and the administrator will not be protected by the password or you c...

Page 44: ...your own needs press the function key at the bottom of the screen to select different baud rates 4800 9600 19200 38400 57600 115200 4 To communicate with the host computer it is recommended to use 115200 high speed baud rates 8 1 7 Communication Protocol Setting The instrument supports two communication protocols SCPl and Modbus RTU protocols It is usually more convenient to use SCPI to communicat...

Page 45: ...ition of the end of the command The instrument supports the following end marks End Mark ASCII Name ASCII Hexadecimal Bytes Description LF 0x0A Newline 0x0A 1 Byte Instrument Default CR 0x0D Carriage Return 0x0D 1 Byte CR LF Carriage Return Newline The First Byte 0x0D 2 Bytes The Second Byte 0x0A NUL 0x00 Null Character 0x00 1 Byte Setting Steps 1 Press the Test or Setup key and select SYSTEM CONF...

Page 46: ...unction key at the bottom of the screen to select ON or OFF ON means that the error code will return to the execution error code after the single line instruction is executed OFF means that the error code does not return automatically 8 1 10 SCPI Upload Mode The instrument supports the function of automatically sending data to the host The data will be automatically sent to the host after each tes...

Page 47: ... and select SYSTEM CONFIG with the function key at the bottom of the screen to enter the SYSTEM CONFIG page 2 Use the cursor keys to move the cursor to the FILTER field 3 According to your own needs press the function key at the bottom of the screen to select AUTO or 50Hz or 60Hz 8 1 13 Default Setting After performing the default setting all the settings of the instrument will be restored to the ...

Page 48: ...M CONFIG page press the function key to select SYSTEM SERVICE Warning This page is not open to users It is used to calibrate data when leaving the factory Non professionals cannot enter by force Otherwise the calibration data may be lost resulting in a large deviation of the measurement data 9 Handler Interface This chapter mainly covers the following Terminals Method of Connecting and Schematic D...

Page 49: ...nal of Internal VCC Power Supply 5V 500mA 9 2 Connection Mode The instrument has a built in fully isolated power supply and there is no need to provide a positive terminal for the external power supply Please connect the external power supply to the following pins at the same time Pin 9 External Power GND Pin 10 Floating 9 2 1 Use Internal Power Supply Internal Power Supply 5V maximum 0 5A Use int...

Page 50: ...ive low Maximum Voltage 30VDC built in 30V clamping circuit Input Signal Optical coupler isolation Active low Maximum Current 50mA Note To avoid damage to the interface the power supply voltage should not exceed the power supply requirements and please connect the wiring after the instrument is turned off The instrument uses Darlington driven output terminal which can drive low power relays and si...

Page 51: ... Connection Method of the Input Circuit Figure 9 2 5 1 Connection with the Switch Figure 9 2 5 2 Use Relay to Control Figure 9 2 5 3 Use PLC Negative Common Terminal to Control Figure 9 2 5 4 Use PLC Negative Common Terminal to Control ...

Page 52: ...UT3500 series User Manual 52 9 2 6 Connection Method of the Output Circuit Figure 9 2 6 1 Control Relay Figure 9 2 6 2 Control Luminous Diode and Optical Coupler Figure 9 2 6 3 Negative Logic Output ...

Page 53: ... Common Terminal Figure 9 2 6 7 Output to PLC Positive Common Terminal 9 3 Periodic Table Figure 9 3 1 Periodic Table Description Minimum T1 Trigger Pulse Width 1ms T2 Measurement Period Trigger Delay 10μs T3 Measurement Time Related to Settings T4 BIN Output Delay 200μs T5 Waiting Time after Triggering 0s Figure 9 3 2 Time Table ...

Page 54: ...f Recommended Standard and 232 is the standard number This standard is officially published by the Electronic Industry Association ElA in 1969 It stipulates that it is transmitted via a data wire one bit at a time The configuration of most serial ports is usually not strictly based on the RS 232 standard each port uses a 25 core connector now computers basically use a 9 core connector The most com...

Page 55: ...r of the instrument when plugging or unplugging the connector The default communication settings of the instrument Transmission Mode full duplex asynchronous communication including start bit and stop bit Data Bit 8 bits Stop Bit 1 bit Check Digit None 10 1 2 Connection Mode Figure 10 1 2 RS 232 Interface on the Rear Panel Male The RS 232 serial interface can be interconnected with the serial inte...

Page 56: ...rs and laptops the RS232 interface has been cancelled and the USB interface is used for communication The instrument has a built in USB 232 interface and this virtual port can achieve the same function as RS232 Turn on the USB Function in the Instrument The instrument s SYSTEM CONFIG page has the option of USB RS232 Before using the USB interface for communication please set it to USB Setting step...

Page 57: ...stallation Succeed window will appear after the installation is complete 4 Open the device manager on the computer After the driver installation on Windows is complete a port number COM17 will appear as shown in the red box in the figure This port number needs to be recorded and used for communication 10 4 Communication Protocol The instrument supports 2 communication protocols SCPl and Modbus RTU...

Page 58: ...u only need to translate instructions into HEX bytes and then transfer them in bytes Modbus RTU Protocol The Modbus protocol is a universal language used in electronic control units and is mainly used in industrial field bus protocols It is a communication standard for industrial control equipment such as PLC and touch screen 11 Technical Index 11 1 Technical Index of the Product Table 11 1 Measur...

Page 59: ...000V UT3562 404 000V UT3563 Resolution 10μV 100μV 1mV Precision Slow 0 01 rdg 3dgt Medium 0 01 rdg 5dgt Fast 0 05 rdg 5dgt High Speed 0 1 rdg 6dgt Temperature Index 0 001 rdg 0 3dgt Display true and effective value suitable for 10 to 100 of range Measurement conditions of the above data Temperature 23 5 Humidity 65 R H Set Zero Set Zero before Testing Warm Up Time 60 Minutes Calibration Time Withi...

Page 60: ...dity 65 RH Operating Environment Temperature 10 40 Humidity 10 80 RH Storage Environment Temperature 0 50 Humidity 10 90 RH Power Supply 100VAC 240VAC Fuse 250V 1A Slow Melting Power Maximum 20VA Machine Weight About 2 6 kg Net Weight without Accessories Product Size Width Height Depth 214mm 89mm 340mm ...

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