Fnirsi SG-004A User manual

Multi-functional Signal Generator

SG-004A


7.1 Fault Resolution 12
7.2 Equipment Maintenance 12
7.3 Firmware Upgrade 12
7、Fault Resolution & Equipment Maintenance
4.1 Switching Of Signal Types 05
4.3 V Voltage Signal 05
4.5 Hz Pulse Signal 06
07
4.7 24V Loop Detection
4.2 mA Current Signal 05
4.4 XMT Passive Current Signal 06
4.6 mV Millivolt Signal 07
08
4.8 Ohm Resistance Signal
4、Display & Signal Description
2.1 Specifications 01
2.3 Interface Terminal 02
2.2 Function Introduction 02
2.4 Power & Charge 03
2、Product Description
5.1 Engineering 08
5.3 Signal Conversion 08
5.5 Real-time Curve 10
10
5.7 Output Time
5.2 Preset Value 08
5.4 Program Output 09
5.6 History Record 10
10
5.8 Communication
5、Extensions
03
3、Button Panel Introduction
11
6、Wiring Instructions
01
1、Safety Instructions
13
8、Production information

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【 2.1 】 Specifications
Current（mA）
Voltage（V）
Passive（XMT）
24V loop
FRQ（Hz）
mV
TC（TC-S）
TC（TC-B）
TC（TC-E）
TC（TC-K）
TC（TC-R）
TC（TC-J）
TC（TC-T）
TC（TC-N）
TC（WRe3/25）
TC（WRe5/26）
RES(ohm)
Pt100
Cu50
0~24mA
0~24V
0~24mA
0~24mA
0~9999Hz
-10~100mV
0~1760℃
0~1810℃
0~990℃
0~1320℃
0~1760℃
0~1190℃
0~390℃
0~1290℃
0~2320℃
0~2320℃
0~390Ω
-200~650℃
-20~150℃
±（0.02%+0.003）
±（0.02%+0.003）
±（0.02%+0.003）
±（0.1%+0.005）
±2%
±（0.03%+0.03）
±(0.2%+1)
±(0.5%+1)
±(0.2%+1)
±(0.2%+1)
±(0.3%+1)
±(0.3%+1)
±(0.2%+1)
±(0.2%+1)
±(0.2%+1)
±(0.2%+1)
±(0.2%+1)
±(0.5%+1)
±(0.5%+1)
0.001mA
0.001V
0.001mA
0.01mA
5 digits
0.01mV
1℃
1℃
1℃
1℃
1℃
1℃
1℃
1℃
1℃
1℃
0.1Ω
0.1℃
0.1℃
100Ω
500K
100Ω
100Ω
1MK
2K
2K
2K
2K
2K
2K
2K
2K
2K
2K
2K
/
/
/
Signal Range Precision Resolution Impedance
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Plug the meter into the PC,and turn it on.Wait for the PC to recognize the USB drive
named "Bootloader"
Dont use the instrument in a flammable and explosive environment
Used batteries for instrument replacement and discarded instruments cannot be
disposed of with household waste.Please handle in accordance with relevant
national or local laws and regulations
When there is any quality problem with the instrument or when there is a question
about using the instrument.You can contact "Finiris" online customer service or the
manufacturer, we will solve it for you in the first time

【 2.2 】 Function Introduction
【 Conversion Of Engineering Quantity Display 】:Signals are displayed as physical
or engineering (ie pure quantity) values,The physical quantity corresponds linearly
with the engineering quantity.For example: the current signal of 4~20mA
corresponds to 0~100, that is, 4mA corresponds to 0, 12mA corresponds to 50, and
20mA corresponds to 100. This range can be modified by parameters
【 Preset Value 】: 4 groups of commonly used signal values can be preset to
facilitate quick adjustment of output
【 Signal Conversion 】: The input signal is converted into an output signal, which
can be converted between different physical quantities; for example: the input
frequency signal is converted into a current signal, and the input range is 0-1000hz
into 4-20mA
【 Programming Output 】: It has the output function of automatically and
continuously changing the size according to the setting parameters, and can
choose three modes: monotonous rise, monotonous fall and cycle
【 Real-time Curve 】: The change trend of input and output signals can be
displayed by drawing a curve, and the sampling time of the curve can be set.It can
also automatically adjust the display curve within the range of the maximum and
minimum values within a certain period of time
【 Modbus Slave 】: FNIRSI SG-004A can communicate with configuration software
or PLC via RS485, set the instrument
【 History Record 】: Record and view a certain amount of historical data
【 Firmware Upgrade 】: USB emulated U disk for firmware upgrade
【 2.3 】 Interface Terminal
Output－
Output＋
Input＋
Input－/（24V)
【 Interface 】
There are 4 inner diameter 4mm wiring ports on the top surface, which are
represented by different color rings
The blue port (IN-) is an alternate function, and it is also an input-, which can be
switched to a 24V independent test power supply.The (IN-) port is internally
shorted with the black (COM) port in the input state.When the (IN-) port is an
independent power supply, there is a 24V voltage between the (COM) port
Red (OUT) port and black (COM) port form an output port
Yellow (IN+) and blue (IN-) form the input port
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When the (IN-) port is an independent power supply, it can be called a (24V) port,
and it forms an output port pair with the (COM) port
The safety limit voltage of the input terminal cannot be greater
than 30Vpp, and the over limit will damage the equipment
NOTE！！！
All buttons are made of white translucent silicone material. The color LED backlight
is set under the Button, which can make the key surface change color with the
change of function and mode.Give more intuitive status indication
The keys are mainly divided into 【 3-Key area 】 and 【 5-Key area 】, and each key
has multiple functions.Among them, the 【 FN 】 Button and the 【 5-Key area 】 key
have the up/down function and the function marked on the key, which will be
changed according to the state of the 【 FN 】 key and the interface mode.Start-up
defaults to the upshift function
【 FN 】 key state is divided into: default white light state and red light state
【 5-Key area 】 The status is divided into:Button white light (Manual setting
mode);Button green light (Preset output mode);Button blue light (Programming
mode);No button light (Conversion mode)
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Button Function Operation Description:
【 RUN 】 Light: The power on/on output is white light
【 IN 】Input key: Used to switch the input signal mode in the main
interface;When 【 FN 】 red light is on, click 【 IN 】 to enter the input setting
【 OUT 】 Output key: used to switch the output signal mode on the main
interface.When the 【 FN 】 red light is on, click 【 FN 】 to enter the output setting
【 FN 】Exit Return key:In the main interface, click 【 FN 】 , it will turn into a red
light to activate the downshift function of other keys (enter different modes,
etc.).In the setting interface, the function of 【 FN 】 is to return
【Main Interface】: Main display interface
1
2
3
5
4
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Built-in battery: 3000mA large capacity lithium battery
Battery display: Display the current battery
percentage in the upper right corner of the display
Charging interface: Type-C port (DC 5V-12V)
State of charge: (Up to 10W)When charging, the
power button will display a red light.When fully
charged, it will automatically stop charging and
display a blue light
【 2.4 】 Power & Charge
【 Bottom Display 】
Power Type-C port

6【 RCVK 】 Up function key: When the key is white, it is to add value or select upward
(when the output pulse is quantitative and the cursor is not in, it is the same as the
programming mode).In the history curve interface, it is a quick right shift of 100.
When the 【 FN 】 red light is on (the button is green), click 【 RCVK 】 to enter/exit
the preset output mode. At this time, the up, down, left and right buttons can
quickly recall the preset signal value
【 AUTO 】 Left function key: when the key is white, it is to select to the left (when
the output pulse is quantitative and the cursor is not present, it is the same as
the programming mode).
In the history curve interface, the cursor is moved to the left point by point.
When the 【 FN 】 red light, click 【 AUTO 】 to enter/exit the programming mode
(the button blue light), at this time, the up key-single output, the down
key-reset, the left key-end the output, the right key-pause/ continue
【 ON/OFF 】 confirmation button: when the main interface (turn on/off the
output); When the 【 FN 】 is red light (click to turn on/off the recording); when
setting the interface(Click for "OK")
【 CURVE 】 Right function key: When the key is white light (select to the right ~
when the output pulse is quantitative and the cursor is not in, it is the same as
the programming mode).In the history curve interface, the cursor is moved to
the right point by point.When 【 FN 】 is red light (click to switch curve
interface/character interface)
【 CONVRET 】 Down function key: When the key is white, it is to decrement the value
or select down (when the output pulse is quantitative and the cursor is not in, it is the
same as the programming mode; in the history curve interface, it is to move left
quickly by 100; When 【 FN 】 is red light (click to enter/exit the conversion mode)
7
8
9
10
【 Panel Display 】
1
2
7
10
6
9
8
5
3
【 3-key area 】
【 3-key area 】
4
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【 4.1 】 Switching Of Signal Types
Press 【 FN 】 on the main interface.After the 【 FN 】 button turns red, if you want to
switch the input signal type, press the 【 IN 】 button to enter the input setting
If you want to switch the output signal type, press 【 OUT 】 key to enter the output
setting.After entering the setting interface, you can directly select the desired signal
type from left to right.Press 【 FN 】 to exit to the main interface
There are also a variety of signal modes available for switching under various signal
types.Various signal types also have different parameters that can be set
【 4.2 】 mA Current Signal
【 Mode Switch 】: When the main interface 【 FN 】 is white, press 【 IN/OUT 】 to
switch the display of input/output actual value and engineering quantity
【 Output Open Circuit Detection 】: When the output is turned on, if the interface
displays open circuit and flashes, it means that the output signal is not connected
or the output is close to zero
【 Output Circuit Voltage 】：FNIRSI SG-004A can set current output no-load
voltage.The purpose of 12V is to save power.Some devices require a 24V drive
capability
【 Output Range 】:The limit range of the current output can be set
【 4.3 】 V Voltage Signal
【 Mode Switch 】: When the main interface 【 FN 】 is white.Press 【 IN/OUT 】 to switch
the display of actual value and engineering quantity of input/output
【 Overcurrent Protection 】: If the output voltage is shorted, the output will
automatically shut down
【 Output Range 】:The limit range of the voltage output can be set
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【 Input Signal Settings 】 【 Output Signal Settings 】

【 4.4 】 XMT Passive Current Signal
【 Mode Switch 】:When the main interface 【 FN 】 is white.Press 【 IN/OUT 】 to switch
the display of actual value and engineering quantity of input/output
【 Output Range 】: The limit range of passive current output can be set
【 4.5 】 Hz Pulse Signal
【 Mode 】: The pulse signal has four modes: frequency, PWM duty cycle, speed frequency,
pulse quantitative/counting. For input, when the main interface 【 FN 】 is white,
press 【 IN 】 to switch the mode directly. For output, long press 【 OUT 】 to switch mode
【 Range 】: Select the range of frequency output: 0~99.999Hz, 0~999.99Hz,
0~9999Hz, 0~200kHz
【 Method 】: Select level/open circuit according to the presence or absence of pull-up
【 Output Peak Value】: The level height of the output waveform, the highest is 24V
【 Input Counting Method 】: The rising edge means that the level rises from 0V to
the peak value of the pulse, and the counter is incremented by 1. A falling edge
indicates that the input level falls to the OV counter and increments by 1.Jump
means that as long as the input level jumps up and down, the counter is
incremented by 1. Long press 【 IN 】 to clear the count
【 Frequency Mode Operation Instructions 】: The input frequency range is
0~9999Hz, which cannot be selected, and the displayed decimal point is
automatically shifted.The output frequency range can be switched by
pressing 【 OUT 】 when the main interface 【 FN 】 is white
【 Operating Instructions In PWM Mode 】: PWM displays two parameters, the
frequency value (that is, the period value) and the duty cycle.The frequency value
will be displayed in the original engineering quantity position (no engineering
quantity display).Note that the maximum frequency does not exceed 9999Hz.The
frequency value/duty cycle parameters can be set when outputting.When the main
interface 【 FN 】 is white, press 【 OUT 】 to switch, there is a yellow cursor indication
【 Operating Instructions For Speed Mode 】:
(1) The speed mode is used to calculate the speed of the motor or gear. One
revolution of the motor or gear produces 1 pulse, one minute is 3000 revolutions, so 1
second is 50 pulses
(2)【 Time Unit 】: Frequency=RPS(per second)*number of pulses per revolution,
RPM(per minute)=RPS*60, RPH(per hour)=RPS*3600.In the speed setting selection,
note that the maximum frequency does not exceed 9999Hz
(3)【 Number Of Revolution Pulses 】: The number of pulses per revolution of the
motor or gear, which can be selected in the speed setting
(4)【 Tooth Missing 】: It is mainly used to simulate the engine speed, select it in the
speed setting
【 Quantitative/Counting Mode Operation Instructions 】: The main purpose of
pulse quantitative is to simulate the quantitative control sensor of flow, and the pulse
count is to simulate the flow of count.For inputs, the input frequency value will be
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【 4.6 】 mV Millivolt Signal
【 Mode 】: The millivolt signal is divided into three modes: 110mV, thermocouple, WR
thermocouple, in the main interface.When 【 FN 】 is white, press 【 IN/OUT 】 to switch
【 Type 】: Select the type of thermocouple TC-S, B, E, K, R, J, T, N
【 WR Type 】: Select the type of WR thermocouple WRE25, WRE26
【 Temperature Unit 】: Set to Celsius or Fahrenheit
【 Cold Junction Setting 】: Select the temperature detected by the meter or the
user-defined temperature
【 Cold End Temperature 】: Customized cold end temperature value
【 4.7 】 24V Loop Detection
Select the 24V label left and right in the OUT signal type interface to enter this
function state.In this state, displays the output 24V loop current on the main
interface.Unlimited input signal detection type
（1）Loop 1: After starting the output, 24V voltage is output between the (OUT) port
and (COM) port, and the loop current is detected at the same time, and the current
is displayed in the "output 24V loop" area.This function can be used to test, for
example, pneumatic control valves or two-wire transmitters, supply them with 24V
power supply and detect current
（2）Loop 2: After activating the independent 24V power supply.The (IN-) port
outputs 24V voltage between the (24V) port and the (COM) port.It does not affect
the detection type of the input signal by the (IN+) port.In this case, select mA for the
input signal type.Then the (IN-) port can be combined with the (IN+) port to form a
24V output,And at the same time detect the current loop.The function is similar to
the circuit one
（3）Port (IN-) can be switched to independent 24V power supply function.It outputs
a single DC24V voltage, which is the (24V) port at this time.(24V) port used with
(IN+) to test two-wire transmitters
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Notice!
①The difference between 24V loop detection and standalone 24V is:24V
loop detection output signal port to measure feedback current.
②Independent 24V port and output port can form 24V power supply,It
can also be combined with the input (+) to form a transmitter to supply
power and measure the feedback current of the transmitter
displayed in the original quantity position.For output, the cycle is displayed at the
original engineering position, and the unit is milliseconds.When the main interface
【 FN 】 is white, press 【 OUT 】 to switch between cycle and quantitative values, which
are distinguished by cursors.
The period value can be modified during quantitative output.In this mode, when the
cursor disappears after the output is turned on, the backlight of the up, down, left,
and right keys will turn blue.The function of the up, down, left, and right buttons will
also change, that is, the up is a single pulse sent.Down is program stop and reset, left
is no function, right is start/pause

【 Mode switch 】：When the main interface 【 FN 】 is white.Press 【 OUT 】 to switch
the display position of output actual loop current value and engineering quantity
【 Activate independent 24V 】: After this item is checked, the independent 24V
power supply starts to output from the (24V) port (IN-) port and the (COM) port, and
is not affected by input and output signal type switching
【 Activate Hold 】: After this item is checked, each time the machine is turned on,
the 24V state will remain in the state of the last turn-on.Otherwise, every time you
turn on the 24V, you need to turn it on manually
【 4.8 】 Ohm Resistance Signal
【 Temperature Unit 】: Set to Celsius or Fahrenheit
The resistance signal is divided into three types: Pt100, Cu50, and RES.When the
main interface 【 FN 】 is white, press 【 IN/OUT 】 to switch
【 Resistance Offset 】: Used to correct the resistance value of input/output
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【 5.1 】 Engineering
When the signal value of analog quantity is used in the industrial field, it is
generally necessary to convert it into engineering quantity value.Therefore, in the
input and output settings of each signal, the instrument can set the upper and
lower limits of its engineering quantity and the upper and lower limits correspond-
ing to the signal value
【 5.2 】 Preset Value
【 Parameter Setting 】: You can set the signal value corresponding to the up, down,
left and right buttons
【 Operation Instructions 】: Start and Exit: When the main interface 【 FN 】 is red,
press the up key 【 RCVK 】 to Start/Exit the preset
【 Up, Down, Left And Right Keys 】: After starting the preset, the backlight of the
up, down, left and right keys will turn green, and the key function will also change
to "output the set value"
【 5.3 】 Signal Conversion
The input signal is converted into an output signal.For example: the input
frequency signal is converted into a current signal, and the input range is 0-1000hz
and converted into 4-20mA
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【 Parameter Settings 】:
(1) Input upper limit/input lower limit: the amplitude range of the input signal
(2) Output upper limit/output lower limit: the amplitude range of the output signal
(3) Overrun allowed: For example, 1-5V is converted into 4-20ma.If the user checks
this option, when the input is oV, the output will follow to OmA.If the user does not
check it, then the output is 4mA and the output is locked within the set range
(4) Automatic operation:After checking this option, the signal conversion will be
automatically started at the next power-on, and the signal conversion will be
automatically canceled when the signal conversion is exited
【 Instructions 】:
【 Start and Exit 】:When the main interface 【 FN 】 is red, press the key 【 CONVRET 】
to start/exit the signal conversion mode.After startup, the backlight of the up,
down, left and right keys will turn off and have no function
【 5.4 】 Program Output
The programming output can automatically complete N cycles of signal output
according to the parameters set by the user.This function is mainly used for the aging
test of electric valve or pneumatic valve,Or test work such as PLC program debugging
【 Parameter Settings 】:
（1）Mode: It is divided into three modes: single rise, single fall and cycle
（2）Number of loops: 0 is infinite, 30000 is the maximum
（3）Start value: The value at each start
（4）End value: The value at the end of each
（5）Increment step value: The value of each increment
（6）Increment step time: The time between each increment
（7）End stop: The time delay at the end value
（8）Decrement step value: The value to decrease each time
（9）Decrease step time: The time between each decrease
（10）Loop stop: Time delay at start value
【Supplementary Parameter Description】:
The start value and end value of single rise and single fall are selected according to
high and low,and does not automatically close
【 Instructions 】:
（1）Start and Exit:When the main interface 【 FN 】 is red, press the left key 【 AUTO 】
to start/exit the programming output mode
（2）Up, Down, Left and Right keys: After starting the programming output mode, the
backlight of the up, down, left and right keys will turn blue.The functions of the up,
down, left and right buttons will also change, that is, the top is a single run, the bottom
is a program reset, the left is a single-step run, and the right is a Stop/Continue
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【 5.5 】 Real-time Curve
【 Instructions 】：
When the main interface 【 FN 】 is red, press the right button 【 CURVE 】 to switch the
interface with/without curve
【 Parameter Description 】:
(1) Turn on the output curve: turn on the following display curve of the output
signal (Red line)
(2) Automatic output scaling: automatically adjust the scale range of the output
signal, and automatically adjust the scale range of the y-axis with the maximum
and minimum values of the curve
(3) Input automatic scaling: automatically adjust the scale range of the input signal,
and automatically adjust the scale range of the y-axis according to the maximum
and minimum values of the curve.
(4) Acquisition time: the refresh interval of the curve, and the time scale will also
change with it
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【 5.6 】 History Record
【 Enable/Close Recording 】: When the main interface【 FN 】 is red, press 【 ON/OFF 】
to enable/disable recording.When turned on, the top of the screen will flash to
display the record number
【 View Record 】: Select the record you want to view in the setting interface history
record,【 ON/OFF 】 confirm to enter the view.When entering the viewing record, the
backlight of the up, down, left, and right keys will turn yellow, and the functions of
the up, down, left, and right keys will also change; that is, up and down is to view
the 100 record values before and after the forward, and left and right is to view the
1 record value of the forward and backward
【 Delete Record 】: When viewing the record, press 【 ON/OFF 】 to choose whether to
delete this record
【 5.7 】 Output Time
【 Output Activation Output Time 】: When checked, each output will automatically
turn off the output after the output time expires
【 Output Time 】: Set output time
【 5.8 】 Communication
【 USB connection 】:Because the USB analog serial port is used for communica-
tion.Note that charging will slow down after checking the USB connection
【 Slave address 】: MODBUS slave address.（Please refer to the attached table 1, 2, 3
on page 14 for the address and description of the instrument register）

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Pneumatic
valves
Valve position
given
Valve position
feedback
Switch this input (-), the port to 24V,
as the power supply for the valve
feedback, the input and output are
carried out at the same time
Pneumatic
valves
Valve position
given
Valve position
feedback
This input (-), the port is closed to 24V,
as the negative pole of the input
signal, the input and output are
performed at the same time
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PLC/Process
instrument, etc.
【 All switched by electronic switches 】
【 All-round Signal Output 】:
Current/Voltage/Millivolt/Frequency
/Resistance/Thermal Resistance/
Various Thermocouple Signals
PLC/Process
instrument, etc.
【 All switched by electronic switches 】
【 All-round Signal Output 】:
Current/Voltage/Millivolt/Frequency
/Resistance/Thermal Resistance/
Various Thermocouple Signals

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【 7.3 】 Firmware Upgrade
SG-004A uses USB emulated U disk for firmware upgrade.
【 Upgrade Steps 】：
（1）Plug the meter into the PC,and turn it on.Wait for the PC to recognize the USB
drive named "Bootloader"
（2）Copy the firmware to be upgraded to the U disk
（3）After a few seconds, the device is powered on normally and the upgrade is
successful
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【 7.1 】 Fault Resolution
No response when SG-004A is turned on：
（1）Determine if the battery has power and if the indicator light is normal when charging
（2）Firmware upgrade error operation leads to system crash
Abnormal screen display：Check if the screen is connected properly.
Abnormal output value or measured value：
（1）Check the signal line
（2）Check the interface for signal selection
（3）The target parameter of the connection exceeds the range indicated by the
technical indicator?（It may cause the instrument to work abnormally or even
damage）
Error in input and output：It is normal that there may be errors in input and
output.Because the input and output are not isolated
【 7.2 】 Equipment Maintenance
The meter is powered by 3.7V rechargeable lithium battery, please use the power
adapter to extend battery life when using it for a long time
This instrument is not waterproof, please do not use it in a high humidity
environment
Do not place the unit in a place that is unstable or may be subject to strong
vibrations
Do not place this unit in places with high humidity, dust, direct sunlight, outdoors,
or near high temperatures
Notice:
①If the U disk cannot be recognized normally when connected to the
PC in the power-on state.At this point, please shut down and restart!
②USB firmware upgrade only supports WIN10.It is forbidden to drag
and drop files other than those officially released by FNIRSI.Other-
wise, it is very likely to cause irreversible consequences

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󾋿
Product name: Multi-functional Signal Generator
Brand / Model: FNIRSI / SG-004A
Manufacturer: Shenzhen FNIRSI Technology Co., Ltd.
Website: www.fnirsi.cn
Address: Building C, Weihuada Industrial Park, Dalang Street, Longhua District,
Shenzhen, Guangdong, China

󾋸󾋻
PAGE
40001
40002
40003
40004
40006
40008
40009
40010
40011
40012
40013
40014
uint16_t
uint16_t
uint16_t
float
float
uint16_t
uint16_t
uint16_t
uint16_t
uint16_t
uint16_t
uint16_t
read
RW
RW
read
RW
RW
RW
RW
RW
RW
RW
RW
Firmware version
Input signal
Output signal
Input value
Output value
Software output mode and output switch
Active current output value USER upper limit
Active current output value USER lower limit
Voltage output value USER upper limit
Voltage output value USER lower limit
Passive current output value USER upper limit
Passive current output value USER lower limit
Address Type of data
0X9C41
0X9C42
0X9C43
0X9C44
0X9C46
0X9c48
0X9C49
0X9C4A
0X9C4B
0X9C4C
0X9C4D
0X9C4E
Hexadecimal Attributes Illustrate
【 Schedule 2 】
Register upper 8 bits
Register lower 8 bits
01 is current; 02 is voltage; 03 is frequency; 04 is millivolt; 05 is resistance
The upper four bits are the type: 1-8 represent S, B, E, K, R, J, T, N in turn
Lower four-bit mode: 1 is mV, 2 is thermocouple, 3 is WR thermocouple
Enter
【 Schedule 3 】
100
101
102
103
0x64
0x65
0x66
0x67
read
write
read
write
Function code Hexadecimal
uint16_t
uint16_t
float
float
Type of data Attributes
【 Schedule 1 】
【Example 】
slave
address
function
code
register
address
register address
low byte
Register number
high byte
CRC high
byte
CRC low
byte
01 65 9C 42 04
Register number
low byte
62 40 AF
Write input millivolt signal, J thermocouple type
Illustrate:
01: Slave address set by the device; 65: Write function code, see Table 1; 9C42: Read and write
input signal address, see Table 2; 04: 01 is current, 02 is voltage, 03 is frequency, and 04 is
millivolt , 05 is the resistor; 62: the upper four bits are the type: 1 is S, 2 is B, 3 is E, 4 is K, 5 is R, 6
is J, 7 is T, 8 is N, the lower four bits mode: 1 is millivolt, 2 is thermocouple, 3 is WR
thermocouple; 40AF: CRC code (note! Send in hex)

Download Manuals
and Firmware
Manufacturer: Shenzhen FNIRSI Technology Co., Ltd.
Website: www.fnirsi.cn
Address: Building C, Weihuada Industrial Park, Dalang Street,
Longhua District,Shenzhen, Guangdong, China