TR700 Instruction Manual
I
INSTRUCTION MANUAL
V01.14
LONGTEC
TR700
DIGITAL LOADCELL TRANSMITTER
TR700 Instruction Manual
II
Note：
Observe the instruction manual carefully before using the weighing indicator for the
first time, where you can find answers for many questions existing in the site
operation.
Check whether the other accessories of the weighing system match.
Avoid being exposed in direct sun shine, splashing of water and physical shocks.
Equip with the installation and repairing tools as possible: the mini-type minus screw
driver, digital multimeter, load cell simulator (mV signal generator).
©2010 LONGTEC Company Ltd. All proprietary rights are reserved.
TR700 Instruction Manual
III
CONTENT
1. GENERAL INSTRUCTION .............................................................................................................................. 1
1.1. INSTRUCTION ................................................................................................................................................. 1
2. TECHNICAL PARAM ET ERS .......................................................................................................................... 2
2.1. GENERAL SPECIFICATIONS ............................................................................................................................. 2
2.2. DIGITAL ......................................................................................................................................................... 2
2.3. ANALOG ........................................................................................................................................................ 2
3. INSTALLA TION AND CONNECTION ........................................................................................................... 3
3.1 CAUTION ....................................................................................................................................................... 3
3.2 DIMENSIONS .................................................................................................................................................. 3
3.3 WIRE CONNECTION AND INTERFACES ............................................................................................................ 4
3.4 DISPLAY PANEL .............................................................................................................................................. 6
4. BASIC OPERATION DIAGRAM ..................................................................................................................... 8
4.1 BLOCK DIAGRAM .......................................................................................................................................... 8
4.2 TR700 OPERATION FLOW CHART .................................................................................................................. 9
4.3 TR700 FUNCTION TREE ............................................................................................................................... 10
5. GENERAL FUNCTION SETTING ................................................................................................................ 11
5.1. STEPS ........................................................................................................................................................... 11
5.2. FUNCTION TABLE ......................................................................................................................................... 12
6. COMMUNICATION PARAM ETERS AND COMMUNICA TION PROTOCOL ...................................... 14
6.1. RS232/RS485 COMMUNICATION SELECTIONS ............................................................................................. 14
6.2. COMMUNICATION PARAMETER SETTING OF SERIAL INTERFACE 1 ................................................................ 15
6.3. LIST O F COMMUNICATION PARAMETERS OF SERIAL INTERFACE 1 ................................................................ 16
6.4. COMMUNICATION PROTOCOL OF SERIAL INTERFACE 1 ................................................................................ 16
6.4.1. Zhimei Protocol .................................................................................................................................. 16
6.4.2. Modbus Protocol................................................................................................................................. 18
6.4.3. Longtec Protocol................................................................................................................................. 24
7. CALIBRATION OF THE METER ................................................................................................................. 39
7.1. SIGNIFICANCE OF THE CALIBRATION............................................................................................................ 40
7.2. OPERAT ION OF THE CALIBRATION ................................................................................................................ 41
7.2.1. Steps ................................................................................................................................................... 41
7.2.2. Calibration in Kind ............................................................................................................................. 42
7.2.3. Digital Calibration .............................................................................................................................. 44
7.2.4. Modification of the Calibration Coefficient ....................................................................................... 46
7.3. CAL DRAWING ............................................................................................................................................ 46
7.4. PARAMETER LIST OF CALIBRATION IN KIND ................................................................................................ 47
7.5. PARAMETER LIST OF DIGITAL CALIBRATION ................................................................................................ 47
7.6. REMINDERS OF CALIBRATION ERROR .......................................................................................................... 48
TR700 Instruction Manual
IV
8. DIAGNOSIS FUNCTION ................................................................................................................................ 49
8.1. OPERATION PROCEDURE OF DIAGNOSIS FUNCTION ..................................................................................... 49
8.2. LIST O F DIAGNOSIS FUNCTION..................................................................................................................... 50
8.3. DESCRIPTION OF DIAGNOSIS FUNCTION ...................................................................................................... 50
8.3.1. Display of the Mill volt Value............................................................................................................. 50
8.3.2. Key-press Testing ............................................................................................................................... 50
8.3.3. Display Testing ................................................................................................................................... 51
8.3.4. Serial Port Testing............................................................................................................................... 51
8.3.5. Display the Version Number ............................................................................................................... 51
8.3.6. Display the Serial N umber.................................................................................................................. 51
8.3.7. External controlling input testing ....................................................................................................... 51
8.3.8. Relay Output Testing .......................................................................................................................... 51
8.3.9. Renew to the Default .......................................................................................................................... 52
9. EXPLANATION FOR COMPARISON CONDITION .................................................................................. 53
9.1. PROCEDURE OF PARAMETER SETTING.......................................................................................................... 53
9.2. LIST O F HIGHER/LOWER LIMIT PARAM ETER SETTING .................................................................................. 55
10. SWITCH IN/OUTPUT ................................................................................................................................. 57
10.1. EXTERNAL CONTROL INPUT ......................................................................................................................... 57
10.1.1. the Connection between Input Interface and External Switch ............................................................ 57
10.1.2. Connection between Input Interface and PLC .................................................................................... 57
10.2. CONTROL OUTPUT ....................................................................................................................................... 58
10.2.1. Description of Output ......................................................................................................................... 58
10.2.2. Description of Comparison Condition ................................................................................................ 58
10.3. ANALOG OUTPUT ........................................................................................................................................ 59
10.3.1. Specification ....................................................................................................................................... 59
10.3.2. an Example o f Output ......................................................................................................................... 59
11. ATTACH ........................................................................................................................................................ 60
11.1. FUNCTION TABLE ......................................................................................................................................... 60
11.1.1. Parameter List of General Function Setting ....................................................................................... 60
11.1.2. RS232/RS485 Communication Parameter List .................................................................................. 62
11.1.3. Parameter List of Calibration in Kind ................................................................................................. 63
11.1.4. Parameter List of Digital Calib r a tion.................................................................................................. 64
11.2. LIST OF STANDARD CODE ASCII ................................................................................................................. 65
12. RECORD .............................................................................................................................................................. 66
TR700 Instruction Manual
1
1. General Instruction
1.1. Instruction
TR700 strain load cell, digital transmitter (transmitter for short) is a kind of multi-purpose signal
converter, integrating display, transmitting and control, with the function of serial digital signal
output and analog output etc. It is small and light, adopting guide way installation. Besides, it is
strictly tested by EMC, of high reliability, and adopts key operation and LED display at the same
time. It is applicable to all kinds of load cells of resistance strain gauge used in testing of pull,
pressure, tension, weighing material level, hopper scale, crane scale, hook scale, and tension &
pressure testin g machine etc. Moreover, the analog load cell can be updated digitally, so that it could
be widely used for weighing and tension measurement in provision, light industry, metallurgy,
building material, chemical industry, colored metal, energy, and mechanism etc.
Terms Related
Definition
Scale Division
The change of the show value in unit;
Only one of the numerical values (1, 2, 5, 10, 20, or 50) is optional.
Excitation Voltage
The voltage to drive the resistance strain gauge sensor, provided by
the display
Resistance Strain
Gauge Sensor
It is a kind a assembly, converting force or weight data to voltage
signal
One resistance Gauge sensor contains two parts: one is a kind of metal
assembly called elast omer, defo rmed linearly via the force acting on
it; the other is a kind of strain chip, the resistance of which will
change via the magnitude of the elastomer’s deformation.
Output Ratio of
Resistance Strain
Gauge Sensor
The ratio of out put signal voltage and excitation voltage of resistance
strain Gauge sensor, which is also called output sensitivity
Maximum Capacity
The maximum that the weighing display could display;
It is preset before.
Resolution
The minimum signal the meter can differentiate
Tare Load
The weight of the carrying device which can make the resistance
strain Gauge sensor output voltage
Weighing Division
The change of calibrating weight in unit, displayed on the weighing
display
TR700 Instruction Manual
2
2. Technical Parameters
2.1. General Specifications
1. Power supply ： DC 24V (18V～30V)
2. Power consumption ： Max. 10W
3. Operating temperature ： -5℃～to 45℃（23℉～117℉）
4. Humidity ： ≤90% relative humidity（no condensation）
5. Weight ： Approx. 0.5kg
2.2. Digital
1. Digital display ： 6 digits LED
2. LED height ： 10 mm
3. Indicator ： Display the gross weight, the net weight, weight
variation, zero position, weight unit (Kg)
4. Negative display ： ‘-’is at the most left digit
5. Overload display ： Displ ay “O.L”
6. Scale capacity ： 100～900,000
7. Scale division ： 1，2，5，10，20 or 50
8. Decimal point ： 4 different positions optional
2.3. Analog
1. Load cell type ： All kinds of resistance strain gauge force and weighing
load cell
2. Load cell in/output voltage ： DC 10V±5%，Maximum230mA
3. Output sensitivity ： 0.5µ V/D～200µ V/D
4. Input resistance ： The resistance between each terminal can’t be less than
100MΩ at DC 500V
5. Zero voltage adjustment ： 0.05mV～15.0mV
6. Input signal range ： 0mV～+31mV
7. Capacity stability : ±8ppm/k of the reading
8. Temperature coefficient ： ≤（0.0008% of the reading +0.3 division）/℃
9. Non-linear deviation ： ≤0.005% of F.S
10. Conversion method ： Delta-sigma
11. Sampling speed ： Max. 100 times per second
12. Internal resolution ： 16,000,000
13. Maximum display division ： 50,000 divisions
14. Comparison cycle ： Approx. 100 times per second：
TR700 Instruction Manual
3
Standard Accessory Digital output ： RS232 /RS485
Optional Accessory Analog output ： 0～5V，0～10V，1~5V, 0～20mA,
4～20mA optional
3. Installation and Connection
3.1 Caution
Avoid being exposed to direct sun shine, an abrupt change of temperature and vibration；
The meter is in the best working state When temperature is approximate 20℃ or 68℉ and
relative humidity is about 50%;
It was tested by EMC, having the strong anti-interference ability. However, the analogue
output of sensors and in/output of RS232/RS485 is very sensitive to electronic noise, so
forbid connecting these signal cores with the power lines together, or the meter will be
disturbed. Meanwhile, keep these signal wires away from meters and other equipments’ AC
power. And shorten the length of signal wires or coaxial cables at the same time.
The ultimate accuracy of the wei ghing system is determined by the sele ction of weighing
sensors, installation, weight, signal connection, power etc together, not just by one of them.;
Analogue output is supported by single power, and the common terminal o f the power can’t
be connected with other common wires or shielded wires together in cas e of short circuit or
damaging the meter.
The shielded wire of weighing sensor and signal wires or impulsive wires can’t compose a
circuit, or the input signal of the meter will not be stable.
3.2 Dimensions
Vertical view Side view
TR700 Instruction Manual
4
3.3 Wire Connection and Interfaces
Charm 3-2 TR700 Wire Connection
TR700 Instruction Manual
5
Number Definition Description
1 ＋24V The positive polarity of the module’s power supply ，
24V(18V-30V), switch power supply
2
0V
The ground of the module’s power
3 PE The protection of the module, for ground
4 Reservation
5 IN1 Digital input 1, Passive Connection Point
6 IN2 Digital input 2, Passive Connection Point
7 IN3 Digital input 3, Passive Connection Point
8 IN4 Digital input 4, Passive Connection Point
9 COMA Digital input for ground
10 AN+ Analog output+
11 AN- Analog output-
12
NC
13 NC
14 NC
15 NC
16 TX/A RS232 send terminal, RS485 A signal terminal
17 RX/B RS232 receive terminal, RS485 B signal terminal
18 GNDB RS232 和 RS485 ground wire
19
NC
20 O1+ Solid relay output 1
21
O1-
Solid relay output 1
22
O2+
Solid relay output 2
23 O2- Solid relay output 2
24 O3+ Solid relay output 3
25 O3- Solid relay output 3
26 O4+ Solid relay output 4
27 O4- Solid relay output 4
28 EX+ Excitation voltage output+
29
SENSE+
Solid relay feed up+
30 EX- Excitation voltage output31 SENSE- Solid relay feed up-
32
SHD
The shield of sensors
33 SIG+ Signal input+
34 SIG- Signal output35 NC
36 NC
Table 3-1 the List of Terminals
It is only used as a signal transmitting. When multi-load cells are used, a junction box is to be used to
connect them in a parallel circuit and the final weighing signal is sent to the transmitter. The cable
between the junction box and the transmitter must have metal shielding. Refer to the Table 3-2.
Table 3-2
TR700 Instruction Manual
6
The amount of load cells of
350Ω connected together
Wire of
NO.24（m）
Wire of
NO.20（m）
Wire of
NO.16（m）
1 240 600 1200
3
60
180
300
8
（maximum）
40 120 200
3.4 Display panel
1,
Display Window
It is six-bit LED display, mainl y used to display weight data or the other fu nctional parameters. After
it is connected to the power supply, it displays ‘8.8.8.8.8.8.’for about 5 seconds, and then
automatically enters the weighing status.
The details are as follows.
Table 3-3
Display
status
Weighing display
Function setting Calibration
Higher/lower
limit setting
Diagnosis
Display
contents
Weighing value Functional parameter
Calibration
parameter
Higher/lower
limit
parameter
Diagnosis
parameter
2, Status Lamp
Light
ON
OFF
Note
Gross
Display the gross
weight of the front
panel.
Only one light of Gross or
Net is on in the weighing
display state.
Net
Display the net weight
of the front panel.
Motion Scale on motion Scale on the stable state
Zero
The gross weight is
zero.
The gross weight is not
zero.
TR700 Instruction Manual
7
Kg The unit is kilogram. Only one light of Kg or T is
on in the weighing display
state.
T The unit is ton
3, Key
From left to right
： 、 、 、 、
Table 3-5
Key
Function
Description
Menu
1）In the weighing status, enter the menu;
2）In the menu setting, quit the menu;
3）In the sub-menus, enter the next sub-menu without saving the
parameters.
Gross/N
et
1）In the weighing status, exchange the state of net weight or
gross weigh;
2）In the state of inputting data，move left.
Tare 1）In the weighting status, it is a key‘tare’（tare range：80% of the
max capacity;
2）In the menu setting, enter the former menu;
3）In the state of inputting data, increase the value.
Function
1）In the menu setting, enter the next menu;
2）In the state of inputting data，decrease the value.
Zero 1）In the weighing status, clear zero;
2）In the menu setting, conform;
3）In the sub-menu，save the parameters and enter the next
sub-menu .
TR700 Instruction Manual
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4. Basic Operation Diagram
4.1 Block Diagram
Diagram 4-1 Block Diagram
TR700 Instruction Manual
9
4.2 TR700 Operation Flow Chart
TR700 Instruction Manual
10
4.3 TR700 Function T r ee
F00
F01
F05
F02
F03
F04
F06
F07
F08
F09
F10
F11
F12
F13
F14 F15
zero
filter coefficients
unit
000000 CoM1
C- 00
C- 01
C- 02
C- 03
C- 04
C- 05
C- 06
CoM2 C= 00
C= 01
C= 02
C= 03
C= 04
C= 05
C= 06
Calibration bit Serial 2
Rate Serial 2
00000
CAL1 C1.dECi
C1.d
C1.MAX
C1.ZEro
C1.SPAn
CAL2 C2.dECi
C2.d
C2.MAX
C2.ZEro
C2.SPAn
C2.SEn
CAL3 0000
050000
SAVEr
00000
SEt-HH
SEt--H
SEt--L
SEt-LL
LAg-HH
LAg--H
LAg--L
LAg-LL
000000 AdC.MV
KEY
DiSP
SEr
SEr1 SEr1Er
SEr1okSEr2 SEr2Er
SEr2ok
Edit
S.n.
di
do
rESuME
di0001
di0000
do0000
do1111
r-CAL
r-FunC
r-SEt
r-CoM
00000
SEt
FunC
CoM
CAL
diAg
Weighing
state
PRESS
“MENU”
Gross/net
peeled
zero
PRESS “GR/NT”
PRESS “TARE”
PRESS “ZERO”
Function setting
Input password
Serial1 Parameters
Diagnostics menu
Hi-Lo level
parameter
Calibration
Parameters
Practicality calibrate
Minimum division
Zero demarcate
Sensitivity
Calibrate Coefficient
HH lines
H lines
L lines
LL lines
HH lag value
display millivolt value
Testing the key
dispaly test
version number
serial number
Default setting
Press“TARE”to closure
Renew calibrate
Renew LH Lines
Renew commnication
Serial 1 Test
Serial 2 error
Number4 input
no input
Press“FUNC”all disconnect
Motion detective
display rewrite rate
conditional output
configure Output 4
Zero tracking
Data bit Serial 2
Serial 2 Communication way
Seria l baud rate
Data bit Serial ports1
Minimum capacity
Capacity demarcate
Decimal point
Maximum capacity
Zero Calibrate
H lag value
L lag value
LL lag value
Digital output
configure Output 3
configure Output 2
configure Output 1
configure input 4
configure input 3
configure input 1
configure input 2
Input password
Serial Communication address 1
Serial Communication
Parameters
Serial 2 Parameters
Serial Communication address 2
Input password
Digtal Calibrate
Decimal point
Capacity Calibrate
Minimum division
Serial 2 baud rate
Serial 2 Communication protocol
Serial 1 Communication protocol
Rate Serial 1
Calibration bit Serial 1
Serial 1 Communication way
Input password
Input password
Input password
Renew function setting
Serial 2 Test
Serial 2 ok
Serial 1 error
Serial 1 ok
Serial Test
Digital input
Chart 4-3 Function Tree
TR700 Instruction Manual
11
5. General Function Setting
5.1. Steps
FunC
F 00 F00 XX
F 01
F 02
F01 XX
FUNC
MENU
ZERO
TARE
ZERO
F 03
F 04
F 05
F 06
F 07
F 08
F 09
F 10
F 11
F 12
F 13
F 14
F 15
MENU
MENU
ZERO
FUNC
TARE
通过 调整XX
F02 XX
F03 XX
F04 XX
F05 XX
F06 XX
F07 XX
F08 XX
F09 XX
F10 XX
F11 XX
F12 XX
F13 XX
F14 XX
F15 XX
Chart 5-1 Function Parameter Setting Diagram
Press to display “FUNC”, and press to display“F0 00”, and press the 、 to
select “F XX”，and then press to enter the parameter s etti ng“FXX XX”. Press 、
TR700 Instruction Manual
12
to input parameters，and press to save the parameters and enter the next function setting,.
Press to get back to the former function setting without saving the parameters, and then go on
pressing to get back to “FUNC”, and press again to get back to normal display.
5.2. Function Table
Numbe
r
F
XX
Name
Defaul
t
Setting
Parameters
Range
Description
00
Zero range
3
0-10
0 ：Zero function off;
1-10 ：It is 1％-10％ of the capacity.
01
Zero tracking range
0
0-10
The display must be in zero tracking range
in 2s, and later it goes back to zero.
0 ：Do not perform zero tracking;
1-10 ：Display division.
02
Motion detection
range
3
0-10
0 ： Motion detection is off;
1-10 ： Display division.
03
Filter coefficient
3
0-9
0 ：No filtering;
1-9 ： The larger the figure is, the
greater the filter is.
04
Display updating rate
3
0-4
0
1 times per second
1
4 times per second
2
8 times per second
3
16 times per second
4
30 times per second
05
Unit conversion
0
0-1
0
kg 1 t
06
Sampling rate
0
0-3
0
25 times per second
1
50 times per second
2
100 times per second
3
200 times per second
07
Conditions of
comparison output
0
0-2
0
Gross weight
1
Net weight
2
Display value
08
Distribution of
external control input
1
3
0-8
0
Gross/net
1
Tare
2
Clear zero
3-7
Extended Functions
8
Keyboard lock，
only lock the “zero, tare, gr/nt”
keys
0
Gross/net
TR700 Instruction Manual
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09
Distribution of
external control input
2
3
0-8
1
Tare
2
Clear zero
3-7
Extend Functions
8
Keyboard lock，
only lock the “zero, tare, gr/nt”
keys
10
Distribution of
external control input
3
3
0-8
0
Gross/net
1
Tare
2
Clear zero
3-7
Extended Functions
8
Keyboard lock，
only lock the “zero, tare and gr/nt”
keys
11
Distribution of
external control input
4
3
0-8
0
Gross/net
1
Tare
2
Clear zero
3-7
Extended Functions
8
Keyboard lock，
only lock the “zero, tare and gr/nt”
keys
12
Distribution of relay
output 1
1
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
13
Distribution of relay
output 2
2
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
14
Distribution of relay
output 3
3
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
15
Distribution of relay
output 4
4
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
TR700 Instruction Manual
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6. Communication Parameters and Communication
Protocol
6.1. RS232/RS485 Communication Selections
TR700 can be calibrated directly through interface that maybe choose one by switch. Two
communication modes of the TR700’s serial interface 1, R S232 and RS485 , are optional. It is chosen
by the data-chosen-switch. Refer to the following chart.
While the blue is on the left, and the RS232 is chosen; while on the right, the RS485 is chosen.
TR700 Instruction Manual
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6.2. Communication Parameter Setting of Serial Interface 1
C-0
C-0 XX
C-1 C-1 XX
FUNC
MENU
ZERO
TARE
ZERO
MENU
MENU
ZERO
CoM1
C-2
C-3
C-4
C-5
C-6
C-2 XX
C-3 XX
C-4 XX
C-5 XX
C-6 XX
FUNC
TARE
通过 调整XX
TR700 Instruction Manual
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6.3. List of Communication Parameters of Serial Interface 1
Number
C-XX
Name
Default
Setting
Parameter
range
Description
00
Communication
address
1
0-99
Communication address
01
Baud rate
1
0
4800 bps
1
9600 bps
2
19200 bps
3
38400 bps
4
57600 bps
5
115200 bps
02
Parity bit
2
0-2
0
Non
1
Odd
2
Even
03
Data bit
0
0-1
0 7 1
8
04
Communication mode
1
0-1
0
Continuous mode
1
instruction mode
05
Communication rate
2
0-5
0
4 times per second
1
8 times per second
2
16 times per
second
3
20 times per
second
4
32 times per
second
5
50 times per
second
6
60 times per
second
06
Communication
protocol
0
0-3
0
Zhimei protocol
1
Modbus protocol
2
Longtec protocol
6.4. Communication Protocol of Serial Interface 1
6.4.1. Zhimei Protocol
6.4.1.1. Signal Format
Data bit = 7 or 8;
TR700 Instruction Manual
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Parity bit = 1（non, even or odd）;
Stop bit = 1;
Code standard = ASCⅡcode;
Ending code = CR/LF.
7-bit odd parity, 7-bit even pari ty, 8-bit no parity, 8-bit odd parity and 8-bit even parity are
optional.
6.4.1.2. Datagram Format
ASCII
Hexadecimal
Description
Status 1
ST
【
53 54】
Stable
US 【55 53】 Unstable
OL 【4F 4C】 Over load
Status 2 GS 【47 53】 Gross weight
NT 【4E 54】 Net weight
Delimiter “，” 【2C】
Data（ASCII）
0~9
【30～9】
“+” 【2B】
“-” 【2D】
“space” 【20】
“.” 【2E】
g
Unit “space”g 【20 67】 kg
“kg” 【6B 67】 T
Note: If there is no decimal point, the 8th bit is “space”.
6.4.1.3. Instruction of Zhimei Protocol
Instruction
TR700 output
Description
<ENQ>IDXX<CR><LF>
<ACK>XX<CR><LF> Read the meter’s address
READ ST,GS,+ XXXXX.Xkg
<CR><LF>
Read the actual value
TARE ON<CR><LF>
YES<CR><LF> or NO?
<CR><LF>
Exclude tare
TARE OFF<CR><LF>
YES<CR><LF> or NO?
<CR><LF>
Clear tare
ZERO ON<CR><LF>
YES<CR><LF> or NO?
<CR><LF>
Clear zero
ZERO OFF<CR><LF>
YES<CR><LF> or NO?
Relieve zero
Status 1 Status 2 Data ( polarity, decimal point) Unit Ending
code
S T , G S , + 0 0 0 0 0 0 K g CR LF
TR700 Instruction Manual
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<CR><LF>
6.4.2. Modbus Prot ocol
6.4.3.1. Signal Format
Data bit = 8;
Parity bit = 1(non, even or odd);
Stop bit = 1;
Code standard = hexadecimal.
8-bit no parity, 8-bit odd parity and 8-bit even parity are optional.
6.4.3.2. Datagram Format
TR700 Modbus protocol is in RTU ( Remote Terminal Unit) communication mode.。A byte (8 bits)
in the message contains two 4-bit hexadecimal characters.
RTU Mode
Address Function code The number of data Data 1 ... Data n CRC high byte CRC low
byte
Address Domain Function Domain Data Domain Fault Checking
Domain
The delimitation of frame: In the mode of MODBUS，the interval between two characters’ sending
or receiving can not exceed 1.5 times of the transmitting time of eve ry character. If it exceeds 3.5
times of the transmitting time of every character, it is considered that the d ata of t his fram e has be en
all received and a new frame starts transmitting.
Startup bit 1 2 3 4 5 6 7 8 Parity bit Stop bit
The bit serial number in the RTU mode with parity bit
Startup bit
1 2 3 4 5 6 7 8
Stop bit
Stop bit
The bit serial number in the RTU mode without parity bit
List of Communication Parameter of TR700 Modbus
Address
code
Data domain
The code
of reading function
The code
of writing
function
03 06 16
40001 Display the higher 16 bits Y - -
TR700 Instruction Manual
19
(the 16 bits of the register)
40002 Display the lower 8 bits
( the lower 8 bits of the register)
Y - -
40003 Meter’s status
（the lower 8 bits of the register）
Y - -
40004 DI status
（the lower 8 bits of the register）
Y - -
40005 DO status
（
the lower 4 bits of the register）
Y Y -
40006 Hi-hi limit higher 16 bits
（the 16 bits of the register）
Y -
Y
（It must be
continuous
from 06 to
17.）
40007 Hi-hi limit lower 8 bits
（the lower 8 bits of the register）
Y -
40008 Up limit higher 16 bits
（the 16 bits of the register）
Y -
40009 Up limit lower 8 bits
（the lower 8 bits of the register）
Y -
40010 Low limit higher 16 bits
（the 16 bits of the register））
Y -
40011
Low limit lower 8 bits
（the lower 8 bits of the register）
Y
-
40012 Low-low limit lower 8 bits
（the lower 8 bits of the register）
Y -
40013 Low-low limit lower 8 bits
（the lower 8 bits of the register）
Y -
40014
Hi-hi limit lag
（the lower 8 bits of the register）
Y
Y
40015 Up limit lag（
the lower 8 bits of the register）
Y Y
40016 Low limit lag
（the lower 8 bits of the register）
Y Y
40017 Low-low limit lag
（the lower 8 bits of the register）
Y Y
40018 The range of zero
（the lower 8 bits of the register）
Y Y
Y
（It must be
continuous
from 18 to
33.）
40019 The range of zero tacking
（the lower 8 bits of the register）
Y Y
40020 Motion detection
（the lower 8 bits of the register）
Y Y
40021 Filtering coefficient
（the lower 8 bits of the register））
Y Y
40022 The display updated ratio
（
the lower 8 bits of the register）
Y Y
TR700 Instruction Manual
20
40023 Unit conversion
（the lower 8 bits of the register）
Y Y
40024 Reservation
(the lower 8 bits of the register）
Y Y
40025 Conditions of comparison output
（the lower 8 bits of the register）
Y Y
40026 The distribution of the external control input
1
（the lower 8 bits of the register）
Y Y
40027 The distribution of the external control
input2
（the lower 8 bits of the register）
Y Y
40028 The distribution of the external control
input3
（the lower 8 bits of the register）
Y Y
40029 The distribution of the external control
input4
（the lower 8 bits of the register）
Y Y
40030 The distribution of relay output 1
（the lower 8 bits of the register）
Y Y
40031 The distribution of relay output 2
（the lower 8 bits of the register）
Y Y
40032 The distribution of relay output 3
（the lower 8 bits of the register）
Y Y
40033
The distribution of relay output 4
（the lower 8 bits of the register）
Y
Y
40034 Decimal point
（the lower 8 bits of the register）
Y Y -
40035 Scale division
（the lower 8 bits of the register）
Y Y -
40036
The higher 16 bits of the capacity
（the lower 8 bits of the register）
Y
-
Y
40037 The lower 16 bits of the capacity（the lower
8 bits of the register）
Y -
40038 The higher 16 bits of the calibration
coefficient
（the 16 bits of the register）
Y -
Y
40039 he lower 16 bits of the calibration
coefficient
（the lower 8 bits of the register）
Y -
40040
The higher 16 bits of the calibration
capacity
（the 16 bits of the register）
-
-
Y
40041
The lower 16 bits of the calibration capacity
-
-
TR700 Instruction Manual
21
（the lower 8 bits of the register）
40042 The higher 16 bits of the sensitivity
（the higher 8 bits of the register）
- -
Y
40043 The lower 16 bits of the sensitivity
（the lower 8 bits of the register）
- -
40044 The higher 16 bits of the sensor capacity
（the 16 bits of the register）
- -
40045 The lower 16 bits of the sensor capacity
（
the lower 8 bits of the register）
- -
40046 Clear to zero - Y 40047 Tare - Y 40048 Gross/net weight - Y 40049 Weigh (the range：-32768～+32767) Y - -
40050 Calibrate zero - Y -
Note：“Y”: The operation of the function code can be executed;
“-”: The operation of the function code is can not be executed.
The instructions of meter’s status word：
BIT0～BIT2 ：Decimal point;
BIT3 =1, updated, = 0, the data is invalid;
BIT4 =1, exceed the capacity, = 0, normal;
BIT5 =1, dynamic, = 0, static;
BIT6 =1, gross weight, = 0, net weight;
BIT7 =1, negative， = 0, positive.
DI status：
BIT0（IN1）： 1:IN1 closed 0：IN1 open
BIT1（IN2）： 1:IN2 closed 0：IN2 open
BIT2（IN3）： 1:IN3 closed 0：IN3 open
BIT3（IN4）： 1:IN4 closed 0：IN4 open
BIT4～BIT7：not used
DO status：
BIT0（OUT1）： 1:OUT1 close 0：OUT1 open
BIT1（OUT2）： 1:OUT2 close 0：OUT2 open
BIT2（OUT3）： 1:OUT3 close 0：OUT3 open
BIT3（OUT4）： 1:OUT4 close 0：OUT4 open
BIT4～BIT7：not used
Control DO：
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
0 0 0 0 X X X X 0 0 0 0 X X X
X
The higher 8 bits and the lower bits of the register must be in accord.
The Instruction of Clear Zero：
TR700 Instruction Manual
22
When executing the function of clear zero, function code 06 is to be used and the 执行 read-in data
must be 0xaa55.
If the read-in data is not be 0xaa55 or the display value exceeds the range of cl ear zero, the fault
code 0x03 will be got.
Tare Instruction：
When ex ecuting the tare operation, function code 06 is to be used and the read-in data must be
0xaa55.
If the read-in data is not be 0xaa55 or the display value exceeds the range of clear zero, the fault
code 0x03 will be got.
The Execution of Gross/Net Weight Conversion：
When executing the gross/net weight conversion, function code 06 is to b e used and the read-in
data must be 0xaa55.
Zero Calibration：
When calibrating zero, function code 06 is to be used and the read-in data must be 0xaa55.
Function code: 03 read and reserve the register’s data
Example：The slaver’s number is 01, and read the 1st and 2nd registers’ data: the value got from the
meter is 10000.
Request: Master Response: Slaver
Domain name Data（hex） Domain name Data（hex）
Address domain 01 Address domain 01
Function code 03 Function code 03
Initial address higher (bytes) 00 Take count of bytes 04
Initial address lower (bytes) 00 Register’s higher（01） 00
The reading data’s higher (bytes)
00
Resister’s lower（01）
27
The reading data’s higher (bytes) 02 Register’s higher（02） 00
Resister’s lower（02） 10
Function code： 06 Set Single Holding Register
Example： The slaver’s number is 01, and set the data of the 18th register 05.
Request: Master Response: Slaver
Domain name
Data（hex）
Domain name
Data
TR700 Instruction Manual
23
（hex）
Address domain
01
Address domain
01
Function code
06
Function code
06
Setting address higher
(bytes)
00
Setting address higher
(bytes)
00
Setting address lower
(bytes)
11
Setting address lower
(bytes)
11
Setting data higher (bytes)
00
Setting data higher
(bytes)
00
Setting data lower (bytes)
05
Setting data lower (bytes)
05
Function code： 0X10 Set Multi-holding-Register
Example: Hi-hi limit value：5000 Higher limit value：4000
Lower limit value：3000 Lo-lo limit：2000
Hi-hi Limit Lag: 16 Higher Limit Lag: 17 Lower Limit Lag: 18 Lo-lo Limit Lag: 19
The slaver’s number is 01. Set 12 registers’ values from the 6th one to the 12th one.
Request
Response
Domain name Data （hex） Domain name
Data （hex）
Address domain 01 Address domain 01
TR700 Instruction Manual
24
6.4.3. Longtec Protocol
6.4.3.1. Signal Format
Data bit = 8;
Parity bit = 1（non, even or odd）;
Stop bit = 1;
Function code 10 Function code
0F
Setting address
higher (bytes)
00
Setting address
higher (bytes)
00
Setting address
lower (bytes)
05 Setting address
lower (bytes)
05
Setting data
higher (bytes)
00 Setting data
higher (bytes)
00
Setting data
lower (bytes)
0C Setting data
lower (bytes)
0C
Take count of bytes 18
Data 1 (higher byte)
00
Data 1 (lower byte)
13
Data 2 (higher byte) 00
Data 2 (lower byte) 88
Data 3 (higher byte)
00
Data 3 (lower byte) 0F
Data 4 (higher byte) 00
Data 4 (lower byte) A0
Data 5 (higher byte) 00
Data 5 (lower byte) 0B
Data 6 (higher byte) 00
Data 6 (lower byte) B8
Data 7 (higher byte) 00
Data 7 (lower byte) 07
Data 8 (higher byte)
00
Data 8 (lower byte) D0
Data 9 (higher byte) 00
Data 9 (lower byte) 10
Data 10 (higher byte) 00
Data 10 (lower byte) 11
Data 11 (higher byte) 00
Data 11 (lower byte)
12
Data 12 (higher byte) 00
Data 12 (lower byte)
13
TR700 Instruction Manual
25
Code standard = ASCⅡcode;
Code standard = hexadecimal.
8-bit no parity, 8-bit odd parity and 8-bit even parity are optional.
6.4.3.2. Datagram Format
Startup bit Address Command Data length Data domain Parity
1 bit 1bit 1 bit 1 bit Decided by the data
length
1 bit
Description：
Startup bit：0x7e (It is regular.)
Meter address：The range is 0x01-0x63.
Data length：The length of data domain
Parity：The lower bits of the summation from the start up bit to the last bit of the data domain
6.4.3.3. Instructions of Longtec Protocol
6.4.3.3.1. Read the Actual Weighing Value
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address
01-63
address
01-63
Function code 01 Function code 01
Length of data 0 Length of data 4
Checking Accumulation Weighing value
（MMSB）
Weighing value（MSB）
Weighing value（LSB）
Status word of meter
Checking
Accumulation
The Description of Meter’s Status Word：
BIT0～BIT2 ：Decimal point, range：0～4；
BIT3 =1，updated， = 0, the data is invalid；
BIT4 =1，exceed the capacity，= 0, normal；
BIT5 =1，dynamic， = 0, static；
BIT6 =1，gross weight， = 0, net weight；
BIT7 =1，negative， = 0, positive.
TR700 Instruction Manual
26
6.4.3.3.2. Read the Value of ad
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code
7E
Beginning code
7E
Address
01-63
Address
01-63
Function code 02 Function code 02
Length of data 0 Length of data 3
Checking
Accumulation
Mill volt value（MMSB）
Mill volt value（MSB）
Mill volt value（LSB）
Checking
Accumulatio
n
6.4.3.3.3. Read the DIDO
Request：Master
Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 03 Function code 03
Length of data 0 Length of data 1
Checking Accumulation Status of switching
variable
Checking Accumulation
Description of Status of Switching Variable：
B7
B6
B5
B4
B3
B2
B1
B0
IN4
IN3
IN2
IN1
OUT4
OUT3
OUT2
OUT1
6.4.3.3.4. Clear to Zero
Request：Master Response：Slaver
Domain name
Data（hex）
Domain name
Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 10 Function code 10
TR700 Instruction Manual
27
Length of data 0 Length of data 1
Checking Accumulation Status word of
response
Checking Accumulation
Description of Status Word of Response：
= 0xaa，Successful;
= 0x55，Failed.
6.4.3.3.5. Cancel Clearing to Zero
Request：Master
Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 11 Function code 11
Length of data 0 Length of data 1
Checking Accumulation Status word of response
Checking
Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.6. Tare
Request：Master Response：Slaver
Domain name
Data（hex）
Domain name
Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 12 Function code 12
Length of data 0 Length of data 1
Checking Accumulation Status word of
response
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.7. Cancel Tarring
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code
7E
Beginning code
7E
Address 01-63 Address 01-63
Function code 13 Function code 13
TR700 Instruction Manual
28
Length of data 0 Length of data 1
Checking Accumulation Status word of
response
Checking Accumulation
Description of Status Word of Response：：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.8. Net/Gross Weight Conversion
Request：Master
Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 14 Function code 14
Length of data 0 Length of data 1
Checking Accumulation Status word of
response
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.9. Update DO Output
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 15 Function code 15
Length of data
1
Length of data
1
Checking
Status word of
response 1
Accumulation Checking Accumulation
Description of Control Code：
The hi gher four bits and the lower four bit s must be in a ccord. The bits fro m the hi gher to the lower
correspond to OUT4、OUT3、OUT2、OUT1 respectively.
b7 = b3 B6 = b2 B5 = b1 B4 = b0
1 0 1 0 1 0 1
0
OUT4
closed
OUT4
open
OUT3
closed
OUT3
open
OUT2
closed
OUT2
open
OUT1
closed
OUT1
open
TR700 Instruction Manual
29
Description of Status Word of Response：
If the higher four bits and the lower four bits are not in accord, get back to 0x75. If they are in
accord, get back to the following table.
b7 = b3 B6 = b2 B5 = b1 B4 = b0
1 0 1 0 1 0 1
0
OUT4
Successfull
y modified
OUT4
Unsucce
s-sfully
modifie
d
OUT3
Successfull
y modified
OUT3
Unsucce
s-sfully
modifie
d
OUT2
Successfull
y modified
OUT2
Unsucce
s-sfully
modifie
d
OUT1
Successful
ly
modified
OUT1
Unsucce
s-sfully
modifie
d
6.4.3.3.10. Read the Function Parameters
Request：Master
Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 20 Function code 20
Length of data 0 Length of data 4
Checking
Accumulati
on
Range of zero
tracking Range of clearing to zero
Filtering coefficient
Range of dynamic
detection
Unit setting Display updating rate
Conditions of
comparison out Sampling rate
Checking Accumulati
on
The meanings of the parameters are referred to Table 5-1.
6.4.3.3.11. Read the Parameters of DIDO Distribution
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning
code
7E Beginning code 7E
TR700 Instruction Manual
30
Address 01-63 Address 01-63
Function code 21 Function code 21
Length of data 0 Length of data 4
Checking Accumulati
on Distribution of input 2 Distribution of input 1
Distribution of input 4 Distribution of input 3
Distribution of output 2 Distribution of output 1
Distribution of output 4 Distribution of output 3
Checking Accumulati
on
The meanings of the parameters are referred to Table 5-1.
6.4.3.3.12. Read the Parameters of Serial Port 1
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code
22
Function code
22
Length of data 0 Length of data
4
Checking Accumulat
ion Baud rate Communication address
Data bit Parity bit
Communication
rate Communication mode
Communication protocol
Checking accumulation
The meanings of the parameters are referred to Table 6-2.
6.4.3.3.13. Read the Parameters of Serial Port 2
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code
7E
Beginning code
7E
Address 01-63 Address 01-63
Function code 23 Function code 23
Length of data 0 Length of data 4
TR700 Instruction Manual
31
Checking Accumulati
on Baud rate Communication address
Data bit Parity bit
Communication
rate Communication mode
Communication protocol
Checking accumulatio
n
6.4.3.3.14. Read the Hi-hi Limit Value
Request：Master Response：Slaver
Domain name
Data（hex）
Domain name
Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 24 Function code 24
Length of data 0 Length of data 4
Checking Accumulation Hi-hi limit value（MMSB）
Hi-hi limit value（MSB）
Hi-hi limit value（LSB）
Hi-hi limit lag value
Checking Accumulation
6.4.3.3.15. Read the Up Limit Value
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address
01-63
Address
01-63
Function code
25
Function code
25
Length of data 0 Length of data 4
Checking Accumulation Up limit value（MMSB）
TR700 Instruction Manual
32
Up limit value（MSB）
Up limit value（LSB）
Up limit lag value
Checking Accumulation
6.4.3.3.16. Read the Low Limit Value
Request：Master Response：Slaver
Domain name
Data（hex）
Domain name
Data（hex）
Beginning code
7E
Beginning code
7E
Address 01-63 Address 01-63
Function code 26 Function code 26
Length of data 0 Length of data 4
Checking Accumulation Low limit value（MMSB）
Low limit value（MSB）
Low limit value（LSB）
Low limit lag value
Checking Accumulation
6.4.3.3.17. Read the Lo-lo Limit Value
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 27 Function code 27
Length of data 0 Length of data 4
Checking
Accumulation
Lo-lo limit value
（MMSB）
Lo-lo limit value（MSB）
Lo-lo limit value（LSB）
Lo-lo limit lag
Checking Accumulation
6.4.3.3.18. Read the Calibration Parameters
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
TR700 Instruction Manual
33
Function code 28 Function code 28
Length of data 0 Length of data 6
Checking Accumulation Decimal point
Scale division
Capacity（MMSB）
Capacity（MSB）
Capacity （LSB）
Checking Accumulation
6.4.3.3.19. Read the Calibration Coefficient
Request：Master Response：Slaver
Domain name
Data（hex）
Domain name
Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 29 Function code 29
Length of data
0
Length of data
3
Checking Accumulation Calibration coefficient（MMSB）
Calibration coefficient（MSB）
Calibration coefficient（LSB）
Checking Accumulati
on
6.4.3.3.20. Set the Function Parameters
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code
30
Function code
30
Length of data 4 Length of data 1
Range of zero tracking Range of clearing to Status of
TR700 Instruction Manual
34
zero response
Filtering coefficient
Range of dynamic
detection
Checking
Accumulati
on
Unit setting Display updating rate
Conditions of
comparison output Sampling rate
Checking Accumulati
on
The meanings of the parameters are referred to Table 5-1.
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.21. Set the Parameters of DIDO Distributor
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 31 Function code 31
Length of data
4
Length of data
1
Distribution of input
2 Distribution of input 1
Status of
response
Distribution of input
4 Distribution of input 3
Checking
Accumulati
on
Distribution of
output 2
Distribution of output
1
Distribution of
output 4
Distribution of output
3
Checking Accumulati
on
The meanings of the parameters are referred to Table 5-1.
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.22. Set the Parameters of Serial Port 1
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
TR700 Instruction Manual
35
Function code 32 Function code 32
Length of data 4 Length of data 1
Baud rate
Communication
address
Status of response
Data bit Parity bit
Checking
Accumulati
on
Communicatio
n rate Communication mode
Communication
protocol
Checking
Accumulatio
n
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.23. Set the Parameters of Serial Port 2
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code
7E
Beginning code
7E
Address
01-63
Address
01-63
Function code 33 Function code 33
Length of data 4 Length of data 1
Baud rate
Communication
address
Status of response
Data bit Parity bit
Checking
Accumulati
on
Communicatio
n rate Communication mode
Communication
protocol
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.24. Hi-hi Limit Value Setting
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address
01-63
Address
01-63
TR700 Instruction Manual
36
Function code 34 Function code 34
Length of data 4 Length of data 1
Hi-hi limit value（MMSB） Status of response
Hi-hi limit value（MSB）
Checking Accumulation
Hi-hi limit value（LSB）
Hi-hi limit lag value
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.25. Up Limit Value Setting
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code
7E
Beginning code
7E
Address
01-63
Address
01-63
Function code 35 Function code 35
Length of data 4 Length of data 1
Up limit value（MMSB） Status of response
Up limit value（MSB）
Checking Accumulation
Up limit value（LSB）
Up limit lag value
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.26. Lower Limit Value Setting
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 36 Function code 36
Length of data 4 Length of data 1
Lower limit value（MMSB） Status of response
Lower limit value（MSB）
Checking Accumulation
Lower limit value（LSB）
Lower limit lag value
TR700 Instruction Manual
37
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.27. Lo-lo Limit Value Setting
Request：Master Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 37 Function code 37
Length of data 4 Length of data 1
Lo-lo limit value（MMSB）
Status of response
Lo-lo limit value（MSB）
Checking Accumulation
Lo-lo limit value（LSB）
Lo-lo limit lag value
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.28. Calibration Parameters Setting
Request：Master Response：Slaver
Domain name
Data（hex）
Domain name
Data（hex）
Beginning code
7E
Beginning code
7E
Address 01-63 Address 01-63
Function code 38 Function code 38
Length of data 5 Length of data 1
Capacity（MMSB） Status of response
Capacity（MSB）
Checking Accumulation
Capacity （LSB）
Decimal point
Scale division
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
TR700 Instruction Manual
38
= 0x55, Failed.
6.4.3.3.29. Calibration Coefficients Setting
Request：Master
Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code 7E Beginning code 7E
Address 01-63 Address 01-63
Function code 39 Function code 39
Length of data 3 Length of data 1
Calibration coefficient
（MMSB）
Status of response
Calibration coefficient（MSB）
Checking Accumulation
Calibration coefficient（LSB）
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.30. Zero Calibration
Request：Master
Response：Slaver
Domain name Data（hex） Domain name Data（hex）
Beginning code
7E
Beginning code
7E
Address 01-63 Address 01-63
Function code 40 Function code 40
Length of data 0 Length of data 1
Checking Accumulation Status of response
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
6.4.3.3.31. Calibration in kind
Request：Master
Response：Slaver
Domain name Data（hex）
Domain name
Data（hex）
Beginning code 7E
Beginning code 7E
TR700 Instruction Manual
39
Address 01-63
Address 01-63
Function code 41
Function code 41
Length of data 3
Length of data 1
Input weighing value（MMSB）
Status of response
Input weighing value（MSB）
Checking
Accumulation
Input weighing value（LSB）
Checking Accumulation
Description of Status Word of Response：
= 0xaa, Successful;
= 0x55, Failed.
7. Calibration of the Meter
♦ *Note: when the meter is calibrated, the function of zero tracking is not allowed to be
performed. , that is to set F1 =0. Besides, the meter should be powered on for half an hour in
advance before calibration, in order to make the weighing units of the load cells and the
meters up to thermal stability.
♦ *Note: In the calibration, only when the instrument is stable, i.e. when the weighing
detecting indicator is off, calibration is allowed. When the indicator is on for
a long time, check the parameters setting of F2.
♦ *Note: If the parameters input are not correct, an error screen will be shown for about 2
seconds and then the screen gets back to where the parameters need to be input again.
The input sensitivity of weighing display can be calculated by the following formula.
（The output voltage of the load cell when the scale is at full load –
The output voltage of the load cell when scale is at no load）
A= ╳ Scale division（d）
TR700 Instruction Manual
40
Capacity
For transmitters, A≥0.5μV/d.
7.1. Significance of the Calibration
As a weight signal (mV) processor, the meter need to establish the correspondences between mV
signals sent from load cells and the standard value, so that the calibration is needed. It contains Zero
Calibration and Scale Division Calibration, and the latter could choose one point or multi-points to
perform calibration. This meter adopts one point calibration.
The Diagram of Calibration
TR700 Instruction Manual
41
V0：Output signal of load cell when weighing system is at no load;.
V1：Output signal of load cell when weighing system is at a certain load;
I0 ：The display value of V0 input to the meter without calibration;
I1：The display value of V0 input to the meter without calibration;
W0：The display value of V0 input to the meter after calibration. (I.e. zero);
W1：The display value of V0 input to the meter after calibration. (I.e. the standard force values which
correspond to the scale division or load).
Note during the calibration:
① W1 is no less than 100 divisions;
② Resolution ：
dV
WW
VV
/5.0
01
01
µ
≥
−
−
;
③ The range of output signal of Strain gauge load cell : approx. 0～30mV;
Calibration is to realize the new corresponding relation;
④ The input signal of load cell of transmitter should meet：0.05mV≤V
0
≤15mV,V
0＜V1
≤32mV.
7.2. Operation of the Calibration
7.2.1. Steps
In the normal state，press to enter the menu，and press 、 to choose“CAL” ，and press
to display“CA L1”; and press 、 to choose“CAL1”、“CAL2”or“CAL3”，and press
to enter calibration parameter setting.
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42
7.2.2. Calibration in Kind
Chart 7-2 Diagram of Calibration in Kind
“
CAL1” is displayed，and press to enter the first step.
Step 1：Decimal Point Setting
“C1.dECi” is displayed，and press to jump over the decimal point setting; press
enter the decimal point setting; press
、
to choose the position of decimal point;
press to save th e setting and en ter th e second s tep, o r press to enter the second
step directly without saving the setting.
Step 2：Scale Division Setting
“C1.d” is displayed，and press to jump over the scale division setting; press to
enter the division setting; press
、
to choose scale division; press to save the
TR700 Instruction Manual
43
division input and enter the third step, or press to enter the third step directly without
saving the division input.
Step 3：Capacity Setting
C1.MAX”is displayed, and press to jump over the capacity setting; press to
enter the capacity setting; press
、 、
to input the capacity; press to save
the capacity input and enter the forth step, or press to enter the forth step directly
without saving the capacity input.
Step 4：Zero Calibration
“C1.Zero” is displayed, and press to jump over the zero setting; press to ent er
the zero calibration, and “000000”is displayed and all are flickering. If the dynamic
detection is on, after the scale is stable and the dynamic indicator is off, press to
perform zero calibration and enter the fifth step, or enter the fifth step without zero
calibration.
Step4：Weighing Calibration
“C1.SPAn” is displayed，and press to jump over the weighing calibration; press
to enter the weighing calibration; press
、 、
to input the weight. If the
dynamic detection is on, after the scale is stable and the dynamic indicator is off, press
to save the weight input and get back to the “CALL” screen, or press get b ack
to the “CALL” screen directly without saving the weight input.
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44
7.2.3. Digital Calibration
Chart 7-3 Diagram of Digital Calibration
TR700 Instruction Manual
45
“CAL2” is displayed，and press to enter the first step.
Step1：Decimal Point Setting
“C2.dECi” is displayed，and press to jump over the decimal point setting；press
to enter the decimal setting; press
、
to select the position of the decimal
point; press to save the position selected and enter the second step, or press to
enter the next step directly without saving the position selected.
Step 2：Division Setting
“C2.d” is displayed，and press to jump over the division setting；press to enter
the division setting; press
、
to select the division; press the to save the
division selected and enter the third step, or press to enter the next step without saving
the division selected..
Step 3: Capacity Setting
“C2.MAX” is displayed，and press to jump over the capacity setting；press to
enter the capacity setti n g ; p ress
、 、
to input the capacity; press to save
the capacity input and enter the next step, or press to enter the next step directly
without saving the capacity input..
Step 4：Zero Calibration
“C1.Zero” is displayed, and press to jump over the zero setting; press to ent er
the zero calibration, and “000000”is displayed and all are flickering. If the dynamic
detection is on, after the scale is stable and the dynamic indicator is off, press to
perform zero calibration and enter the fifth step, or enter the fifth step without zero
calibration.
Step 5：Sensitivity Input（unit：mV）
“C2.SEn” is displayed，and press to jump over the sensitivity setting; press to
enter the sensitivity input setting; press
、 、
to input the sensitivity; press
to save the sensitivity input and enter the next step, or press to enter the next step
directly without saving the sensitivity input.
Step 6： Capacity Calibration
“C2.SPAn” is displayed，and press key to jump over the capacit y calibration setting;
press to enter the capacity calibration setting; press
、 、
to input the
TR700 Instruction Manual
46
capacity; press to save the capacit y input（If the sensitivity input setting is jumped
over，the capacity will not be saved.）and get back to the “CAL2” screen，or press to
get back to the “CAL2” screen directly without saving the capacity input.
7.2.4. Modification of the Calibration Coefficient
“CAL3”is displayed, and press to enter the first step.
Step 1：Input the Password
“000000”is displayed，and press to enter the password input setting; press 、 、 to
input the password and enter the next step.
Step 2: Input the Calibration Coefficient
Press
、 、
to input the calibration coefficient; press to get back to “CAL3”screen
without saving the calibration coefficient input; or press to enter the third step.
Step 3: Save the Calibration Coefficient
“SAVEr”is displayed, cluing to save the calibration coeffici ent input or not; press to get back
to “CAL3”screen without saving the calibration coefficient, or press to save it.
7.3. CAL Draw ing
Table 7-1
Function NO.
Description
CAL1
Calibration in kind
CAL2
Digital calibration
CAL3
ADC Calibration
Modification of the calibration
coefficient
Input the number of airframe
TR700 Instruction Manual
47
7.4. Parameter List of Calibration in Kind
Table 7-2
CAL1
Name
Defaul
t
Setting
Parameter range
Descriptions
C1.dEC
i
Position
of decimal
point
0
0-4
0：No decimal place 12345
1：1 decimal places 1234.5
2：2 decimal places 123.45
3：3 decimal places 12.345
4：4 decimal places 1.2345
C1.d
Division
1
1、2、5、10、
20、50
The minimum weighing division can
be any one of 1、2、5、10、20、50.
C1.MA
X
Full capacity
10000
100-900000
The maximum range of weighing;
This setting value ＋9d（9 个分度）
can be displayed.
While the weight exceeds the above
value, it can not be displayed.
C1.ZEr
o
Zero
calibration
0.1mV 0.05uV-15mV
The voltage that is input from the load
cell at zero is deci
ded in the zero
calibration. The unit is mV.
C1.SPA
n
Capacity
calibration
10000
100-900000
In the calibration in kind, the voltage
input from the load cell is decided in
the capacity calibration.
It is the difference between weighing
point and zero point. The unit is mV.
7.5. Parameter List of Digital Calibration
Table 7-3
CAL2
Name Default
Setting
Parameter range
Descriptions
C2.dEC
i
Position
of decimal point
0
0-4
0：No decimal place 12345
1：1 decimal places 1234.5
2：2 decimal places 123.45
3：3 decimal places 12.345
4：4 decimal places 1.2345
C2.d
Division
1
1、2、5、10、
20、50
The minimum weighing division
can be any one of 1、2、5、10、
20、50.
C2.MA
X
Full Capacity
10000
100－900000
The maximum range of
weighing;
This setting value ＋9d（9 个分
度）can be displayed.
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48
While the weight exceeds the
above value, it can not be
displayed.
C2.ZEr
o
Zero calibration 0.1mV 0.05uV-15mV
The voltage that is input from
the load cell at zero i s de cided in
the zero calibration. The unit is
mV.
C2.SEn
Input sensitivity
1mV/V
Max 5mV/V
The input sensitivity of load
cells
C2.SPAn Capacity
calibration
10000
100－900000
The maximum capacity of load
cells
7.6. Reminders of Calibration Error
Error0 There’s something wrong with AD convertor.
Error1 “Max capa/ Min scal e "can not be di visible; display resolution is more than
50000 or less than 300; the capacity is lesson 100 or more than 900000; the
last sensitivity or the division just modified is lesson 0.3uV/d.
Error2 Zero voltage is too high.，exceeding 15mV.
Error3 Zero voltage is too low.，less than 0.05mV.
Error4 The weighing value input exceeds the max capacity
Error5 The input sensitivity of load cell is too low.，
less than 0.3uV/d, or the
weighing value is 0.
Error6 The mV v alue of the weighing Calibration is less than the mV value of zero
calibration.
Error7 The input of the load cell exceeds the range of input signal，more than
31mV.
Error8 The weighing value is less than 100 divisions in the weighing calibration.
Error9
The input weighing value / minimum scale in the weighing calibration can
not be divisible.
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49
8. Diagnosis Function
8.1. Operation Procedure of Diagnosis Function
Chart 8-1 Operation Procedure of Diagnosis Menu
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50
In the normal display state，press to enter the menu; press
、
to select “diAg”; press
, and “AdC.mV”will be displayed; press
、
to select submenu; p ress to enter the
submenu.
8.2. List of Diagnosis Function
Table 8-1
Menu display
Description
AdC.MV
Display of the mill volt value
KEY
Key-press testing
diSP
Display testing
CoM
SEr1
Serial port 1 testing
SEr2
Serial port 2 testing
Edit
Display the version number
S.n.
Display the serial number of airframe
di
External controlling input testing
do
Relay output testing
ESuME
Renew to the default
rE－CAL
Renew to the default of calibration parameters
rE－FunC
Renew to the default of function setting
rE－Set
Renew to the default of upper/lower limit value
rE－CoM
Renew to the default of communication parameters
8.3. Description of Diagnosis Function
8.3.1. Display of the Mill volt Value
“AdC.MV” is displayed; press , and the voltage input from the load cell will be displayed. The
unit is mV.
8.3.2. Key-press T esting
This function is to check whether the key-press can work properly. “KEY” is displayed; press
to enter the key-press testing, and“KEY-00”is displayed; press to get back to the“KEY”；press
, and “KEY-02”is displayed; press , and “KEY-03”is displayed; press , and “KEY-04”
is displayed; press , and“KEY-05”is displayed.
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51
8.3.3. Display T esting
“diSP” is displayed, and press to enter the display testing; the bits of segment code a is lighted
from the first bit to the seventh bit in turns, so is the segment b, c, d, e, f, g, dp.
8.3.4. Serial Port Testing
（1）When the product you’ve purchased is RS232
“SEr”is displayed, and press
、
to select “SEr1”（or “SEr2” when there is serial port 2）,
and press to test the serial port. If there’s nothing wrong with the communication port,
“SEr1-oK”is displayed; otherwise，”SEr1-Err” is displayed.
Note：Before testing RS232，short TX/A and RX/B; don’t pull in/out the serial port line when
power is on.
（2）When the product you’ve purchased is RS485
This menu can not be used to test RS485. An external RS485 interface in good state is needed to
test the TR700 communication.
8.3.5. Display the V ersion Number
“Edit”is displayed; press , and the version number will be displayed.
8.3.6. Display the Serial Number
“S.n.”is displayed; press , and the s erial number will be displayed, which is united by the plant
and is accord with the transmitter’s.
8.3.7. External controlling input testing
“di”is displayed; press to enter the input testing, and “diXXXX”is displayed. The “di” stands for
input testing, and the latter four bits correspond to the four inputs. If there is an input, “1” will be
displayed on the corresponding LED, otherwise “0” is displayed.
8.3.8. Relay Output Testing
“do”is displayed; press to enter the output testing, and“doXXXX” will be displayed. The “do”
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52
stands for output testing, and the latter four bits correspond to the four outputs.
Press ; there’s four outputs，and “1111” is displayed on the LED. Use a multi-meter to test the
four circuits separately. If the circuit is on, it can work properly.
Press ; there’s no output, and “0000” is displayed on the LED. Use a multi-meter to test the four
circuits separately. If the circuit is not on, it can work properly.
8.3.9. Renew to the Default
“rEsuME”, and press to enter the default renewing setting.
Table 8-2
rE－CAL
Renew to the default of calibration parameters
rE－FunC
Renew to the default of function setting
rE－SEt
Renew to the default of upper/lower limit value
rE－CoM
Renew to the default of communication parameters
Select the corresponding parameter option of the default needed to be renewed and input correct
password, and the default can be renewed.
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53
9. Explanation for Comparison Condition
9.1. Procedure of Parameter Setting
Chart 9-1 Operation Diagram of Higher/Lower Limit Setting
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54
In the normal display status, press to enter the menu, press
、
to select “SET”, and
press to enter the first step.
Step 1：the Hi-hi Limit Value Setting
“SEt-HH”is displayed, and press to jump over the hi-hi limit value setting; press to
enter the hi-hi limit value setting, and the “gross” indicator will be on; press
、 、
to
input the hi-hi limit value; press to clear the hi-hi limit value input, and enter the second
step directly; or press to confirm the input and enter the second step.
Step 2：the Higher Limit Value Setting
“SEt-H”is displayed, and press to jump over the higher limit value setting; press to
enter the higher limit value setting, and the “net” indicator will be on; press
、 、
to
input the higher limit value; press to clear the higher limit value input, and enter the third
step directly; or press to confirm the input and enter the third step.
Step 3：the Lower Limit Value Setting
“SEt-L”is displayed, and press to jump over the lower limit value setting; press to
enter the lower limit value setting, and the “motion” indicator will be on; press 、 、
to input the lower limit value; press to clear the lower limit value input, and enter the forth
step directly; or press to confirm the input and enter the forth step.
Step 4：the Lo-lo Limit Value Setting
“SEt-LL”is displayed, and press to jump over the lo-lo limit value setting; press to
enter the lo-lo limit value setting, and the “motion” indicator will be on; press 、 、
to input the lo-lo limit value; press to clear the lo-lo limit value input, and enter the fifth
step directly; or press to confirm the input and enter the fifth step.
Step 5：the Hi-hi Limit Lag Setting
“LAg-HH” is displayed, and press to jump over the hi-hi limit lag setting; press to
TR700 Instruction Manual
55
enter the hi-hi limit value setting; press
、 、
to input the hi-hi limit lag; press
to clear the hi-hi limit lag input, and enter the sixth step directly; or press to confirm the
input and enter the sixth step.
Step 6：the Higher Limit Lag Setting
“LAg-HH” is displa yed, and press to jump over the higher limit lag setti ng; press to
enter the higher limit value setting; press
、 、
to input the higher limit lag; press
to clear the higher limit lag input, and enter the seventh step directly; or press to
confirm the input and enter the seventh step.
Step 7：the Lower Limit Lag Setting
“LAg-L” is displayed, and press to jump over the lower limit lag setting; press to
enter the lower limit value setting; press
、 、
to input the lower limit lag; press
to clear the lower limit lag input, and enter the eighth step directly; or press to confirm the
input and enter the eighth step。
Step 8：the Lo-lo Limit Lag Setting
“LAg-L” is displayed, and press to jump over the lo-lo limit lag setting; estimate the
higher/lower limit parameters; if it answers for the conditions (hi-hi limit value≥higher limit
value≥lower limit value≥lo-lo limit value, and the lag is in the range of 0-100), “End”will be
displayed about 2 seconds and get back to “SEt”interface; if it doesn’t answer for the conditions,
“Er. r.”will be displayed for about 2 seconds and get back to the first step automatically; press
to enter the lo-lo limit lag setting; press
、 、
to input the lo-lo limit lag; press
to clear the input, and estimate the higher/lower limit parameters; if it answers for the
conditions (hi-hi limit value≥higher limit value≥lower limit value≥lo -lo limit value, and the lag
is in the range of 0-100), “End”will be displayed about 2 seconds and get back to “SEt”interface;
if it doesn’t answer for the conditions, “Er.r.”will be displayed for about 2 seconds and get back
to the first step automatically; or press to confirm the input, and estimate the higher/lower
limit parameters; if it answers for the conditions (hi-hi limit value≥higher limit value≥lower
limit value≥lo-lo limit value, and the lag is in the range of 0-100), “End”will be displayed about
2 seconds and get back to “SEt”interface.
9.2. List of Higher/Lower Limit Parameter setti ng
Table 9-1
TR700 Instruction Manual
56
Function
number
Function name
Default
Setting
The range of parameters
Descriptio
n
SEt-HH
Hi-hi limit
value
4000
0－999999
SEt-H
Higher limit
value
3000
0－999999
SEt-L
Lower limit
value
2000
0－999999
SEt-LL
Lo-lo limit
value
1000
0－999999
LAg-HH
Hi-hi limit lag
10
0－100
LAg-H
Higher limit lag
10
0－100
LAg-L
Lower limit lag
10
0－100
LAg-LL
Lo-lo limit lag
10
0－100
The condition：hi-hi limit value≥higher limit value≥lower limit value≥lo-lo limit value
Note： 1. When one of the higher/lower limit value is set “0”, it will not be compared. For
example, if HH is set “00”, “HH” will not be compared, i.e. the output terminal of “HH” is invalid.
2．Lag：the range of the delay after alarm, the unit is “d”.
Example：HH limit value is 1000，and the lag is 20.
When the value participating in the comparison ≥1000, the alarm starts. The comparison
is selected by the comparison
condition of F7.
When the value participating in the comparison≤1000-20, the alarm exits. The comparison
is selected by the comparison
condition of F7.
In the upper/lower setting, the former two bits before“-”display the limit value，the
latter three bits display the lag.
Note：The range of lag is 000-100。The lag>100，”Err” is displayed for about 2 seconds
and get back to “SET-HH” automatically。
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10. Switch In/Output
10.1. External Control Input
Optical isolation input
1）Input control ：IN1，IN2，IN3, IN4, four inputs in all
2）Input method ：switch without power
3）Input contact time ：not less than 50 ms
4）Every external control input can be used as gross/net display, tare or the function of
clearing to zero, matching with F8, F9, F10, and F11.
10.1.1. the Connection between Input Interface and External Switch
Chart 10-1 Connection Drawing of External Input and Switch Without Power
Note：Input contact adopts the switch without power, and the circuit can not be short for less than 50
ms.
10.1.2. Connection between Input Interface and PLC
In the charm, the DC V+ is provided by TR700 itself, and there is no need to add any power for the
output.
TR700 Instruction Manual
58
Chart 10-2 Connection Drawing of External Input and PLC
10.2. Control Output
10.2.1. Description of Output
Output method： Solid relay output，every output is individual.
Max capacity： 60V DC/AC，0.4A current
The rate of comparison output： 100 times per second
4 outputs can be distributed individually as hi-hi limit output, higher limit output, lower limit output ,
lo-lo limit output, CAN bus control output, and the output function matches with F12, F13, F14 and
F15.
10.2.2. Description of Comparison Condition
1）When comparison condition F7=0, i.e. gross weight is compared,
HH output = the gross display value ≥HH comparison set value;
H output = the gross display value ≥HH comparison set value;
L output = the gross display value≤ L comparison set value;
LL output = the gross display value≤ LL comparison set value.
2）When comparison condition F7=1, i.e. net weight is compared,
HH output = the net display value ≥HH comparison set value;
H output = the net display value ≥H comparison set value;
L output = the net display value≤ L comparison set value;
LL output = the net display value≤ LL comparison set value.
3）When comparison condition F7=2, i.e. the displayed weight is compared,
If the gross weight is displayed,
HH output = the gross display value ≥HH comparison set value;
H output = the gross display value ≥H comparison set value;
TR700 Instruction Manual
59
L output = the gross display value ≤L comparison set value;
LL output = the gross display value ≤LL comparison set value.
If the net weight is displayed,
HH output = the net display value ≥HH comparison set value;
H output = the net display value ≥H comparison set value;
L output = the net display value≤ L comparison set value;
LL output = the net display value≤ LL comparison set value.
10.3. Analog Output
10.3.1. Specification
Resolution：1/50000 Accuracy：0.5%FS
Table 10-1
Output 0～20mA 4～20mA 0～5V 1～5V 0～10V
Load resistance Max
500Ω
Max 500Ω Min
10KΩ
Min
10KΩ
Mix 10KΩ
The output voltage/
current when the display
value is
Zero.
0mA
4mA
0V
1V
0V
The output voltage/
current when the display
value is
the max capacity.
20mA
20mA
5V
5V
10V
10.3.2. an Example of Output
Capacity：2000 Output：4~20mA
Chart 10-3 Diagram of Analog Output
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60
11. Attach
11.1. Function T able
11.1.1. Parameter List of General Function Setting
Number
F XX
Name
Defaul
t
Setting
Paramet
ers
Range
Description
00
Zero range
3
0-10
0 ：Zero function off;
1-10 ：It is 1％-10％ of the capacity.
01
Zero tracking range
0
0-10
The display must be in zero tracking range
in 2s, and later it goes back to zero.
0 ：Do not perform zero tracking;
1-10 ：Display division.
02
Motion detection range
3
0-10
0 ： Motion detection is off;
1-10 ： Display division.
03
Filter coefficient
3
0-9
0 ：No filtering;
1-9 ：The larger the figure is, the greater
the filter is.
04
Display updating rate
3
0-4
0
1 times per second
1 4 times per second
2
8 times per second
3
16 times per second
4
30 times per second
05
Unit conversion
0
0-1
0
kg 1 t
06
Sampling rate
0
0-3
0
25 times per second
1
50 times per second
2
100 times per second
3
200 times per second
07
Conditions of
comparison output
0
0-2
0
Gross weight
1
Net weight
2
Display value
08
Distribution of external
control input 1
3
0-8
0
Gross/net
1
Tare
2
Clear zero
3-7
Extended Functions
8
Keyboard lock，only lock the
“zero,
Tare and gr/nt ” ke ys
0
Gross/net
1
Tare
TR700 Instruction Manual
61
09
Distribution of external
control input 2
3
0-8
2
Clear zero
3-7
Extend Functions
8
Keyboard lock，
only lock the “zero, tare, gr/nt”
keys
10
Distribution of external
control input 3
3
0-8
0
Gross/net
1
Tare
2
Clear zero
3-7
Extended Functions
8
Keyboard lock，
only lock the “zero, tare and gr/nt”
keys
11
Distribution of external
control input 4
3
0-8
0
Gross/net
1
Tare
2
Clear zero
3-7
Extended Functions
8
Keyboard lock，
only lock the “zero, tare and gr/nt”
keys
12
Distribution of relay
output 1
1
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
13
Distribution of relay
output 2
2
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
14
Distribution of relay
output 3
3
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
15
Distribution of relay
output 4
4
0-8
0
Forbidden output
1
Hi-Hi limit output
2
Hi limit output
3
Lo limit output
4
Lo-Lo limit output
5-8
Extended function
TR700 Instruction Manual
62
11.1.2. RS232/RS485 Communication Parameter List
Function NO.
C - XX
Function name
Default
Setting
Parameter
range
Description
00
Communication
address
1
00-99
RS232/RS485 Communication
address
01
1
0
4800 bps
1
9600 bps
2
19200 bps
3
38400 bps
4
57600 bps
5
115200 bps
02
Parity bit
2
0-2
0
Non
1
Odd
2
Even
03
Data bit
0
0-1
0 7 1
8
04
Communication
mode
1
0-1
0
Continuous mode
1
Instruction mode
05
Communication rate
2
0-5
0
4 times per second
1
8 times per second
2
16 times per second
3
32 times per second
4
64 times per second
5
80 times per second
6
100 times per second
06
Communication
protocol
0
0-3
0
Zhimei protocol
1
Modbus protocol
2
Longtec protocol
TR700 Instruction Manual
63
11.1.3. Parameter List of Calibration in Kind
CAL1
Name
Defaul
t
Setting
Parameter range
Descriptions
C1.dEC
i
decimal point
0
0-4
0：No decimal place 12345
1：1 decimal places 1234.5
2：2 decimal places 123.45
3：3 decimal places 12.345
4：4 decimal places 1.2345
C1.d
Division
1
1、2、5、10、
20、50
The minimum weighing division can
be any one of 1、2、5、10、20、50.
C1.MA
X
Full capacity
10000
100-900000
The maximum range of weighing;
This setting value ＋ 9d
can be
displayed.
While the weight exceeds the above
value, it cannot be displayed.
C1.ZEr
o
Zero calibration
0.1mV 0.05uV-15mV
The voltage that is input from the load
cell at zero is decided in the zero
calibration. The unit is mV.
C1.SPA
n
Capacity calibration
10000
100-900000
In the calibration in kind, the voltage
input from the load cell is decided in
the capacity calibration.
It is the difference between weighing
point and zero point. The unit is mV.
TR700 Instruction Manual
64
11.1.4. Parameter List of Digital Calibration
CAL2
Name Default
Setting
Parameters’
range
Descriptions
C2.dEC
i
Position of decimal
point
0
0-4
0：No decimal place 12345
1：1 decimal places 1234.5
2：2 decimal places 123.45
3：3 decimal places 12.345
4：4 decimal places 1.2345
C2.d
Division
1
1、2、5、10、
20、50
The minimum weighing division can
be any one of 1、2、5、10、20、50.
C2.MA
X
Full Capacity
10000
100－900000
The maximum range of weighing;
This setting value ＋
9dcan be
displayed.
While the weight exceeds the above
value, it can not be displayed.
C2.ZEr
o
Zero calibration
0.1mV 0.05uV-15mV
The voltage that is input from the
load cell at zero is d ecid e d i n t he z ero
calibration. The unit is mV.
C2.SEn
Input sensitivity
1mV/V
Max 5mV/V
The input sensitivity of load cells
C2.SPA
n
Capacity calibration
10000
100－900000
The maximum capacity of load cells
TR700 Instruction Manual
65
11.2. List of Standar d Code ASCII
Character Hexadecimal
code
Decimal code Name and the meaning
^@ 00 00 NUL Null Character
^A 01 01 SOH Start of Heading
^B 02 02 STX Start of Text
^C 03 03 ETX End of Text
^D 04 04 EOT End of Transmission
^E 05 05 ENQ Enquiring Character
^F 06 06 ACK Acknowledgement Character
^G 07 07 BEL Bell Character
^H 08 08 BS Backspace Character
^I
09
09
TAB Tab Character
^J 0A 10 LF Line Feed Character
^K 0B 11 VT Vertical Tab Character
^L 0C 12 FF Form Feed Character
^M 0D 13 CR Carriage Return Character
^N 0E 14 SO Shift Out Character
^O 0F 15 SI Shift in character
^P
10
16
DLE Data Communication Escapement Character
^Q 11 17 DC1 Device Control 1 Character
^R
12
18
DC2 Device Control 2 Character
^S 13 19 DC3 Device Control 3 Character
^T 14 20 DC4 Device Control 4 Character
^U 15 21 NAK Negative Acknowledgment character
^V 16 22 SYN Synchronization Character
H 17 23 ETB End of Transmission Block
^X 18 24 CAN Cancel Character
^Y
19
25
EM End of Medium
^Z
1A
26
SUB Substitute Character
^[ 1B 27 ESC Escape Character
^\ 1C 28 FS Form Separators
^]
1D
29
GS Group separator
^^ 1E 30 RS Record separator
^_ 1F 31 US Unit separator
TR700 Instruction Manual
66
12. Record
TR700 Instruction Manual
67
ZHUHAI LONGTEC CO., LTD
ADD: 2/F, B Bldg., No. 265 Changping Road, Xiawan, Zhuhai City G.D., P.R.C
P.C.:519020
Tel: 0756-8155202 / 8155232 Fax: 86-0756-8155622
Http://www.longtec.com E-Mail:sales@longtec.com
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