NiuBol NBL-W-FGS User manual

NBL-W-FGS Fruit Growth Sensors
Changsha ZOKO LINK Technology Co., Ltd
1
Product introduction
Fruit Growth Sensors are highly accurate
electronic measuring instruments with automatic
temperature compensation.
The instrument can be used to easily
monitor the influence of environmental factors on
the growth of plant fruits and stems. The data
collector or computer measures the daily growth
and long-term growth changes of the plant in real
time through the signal change of the caliper
bridge tension probe.
Technical Parameters
Model No.
NBL-W-FGS
Voltage
DC12-24V
Signal output
RS485/4-20mA/0-
5V
Measuring range
A:0-50mm
B:0-100mm
C:0-150mm
D:0-250mm
Communication
MODBUS
Baud Rate
9600
Average Power
Consumption
0.3W
Lifetime
大于 1000000 次
Accuracy
±1%
Movable length
Maximum
measuring range
+3mm
Working temperature
-40-80℃
Working humidity
0-95%RH
length of line
2.5m
IP rate
IP65
Installation
Wiring method
(1) If equipped with the collector produced by our
company, directly use the sensor line to connect
the sensor to the corresponding interface on the
collector.
(2) If the transmitter is purchased separately, the
wiring sequences of the transmitter supporting
lines are as follows:
（3）Transmitter voltage and current two output
wiring methods:
Line color
output signal
voltage
current
communi
cation
Red
+
+
+
Black
（Green）
-
-
-
Yellow
Voltage
signal
Current
signal
A+
Blue
B-

NBL-W-FGS Fruit Growth Sensors
Changsha ZOKO LINK Technology Co., Ltd
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(Wiring in voltage output mode)
(Wiring in current output mode)
Calculation formula
Voltage type:
Example: 0-100mm range, 0-5V output
Calculation formula:
L=(V/5*M)mm
(L is the measurement indication, V is the output
voltage, M is the measurement range)
Current type:
Example: 0-100mm range, 4-20mA output
Calculation formula:
L=(I-4)*M/16
(L is the measurement indication, I is the output
current, M is the measurement range)
MODBUS Communication Protocol
1. Serial port format
Data bit 8 bits
1 or 2 stop bits
Check digit None
Baud rate 9600 The interval between two
communications is at least 1000ms
2. Communication format
【1】Write device address
Send: 00 10 Address CRC (5 bytes)
Return: 00 10 CRC (4 bytes)
Note: 1. The address bit of the read/write
address command must be 00.
2. Address is 1 byte, ranging from 0-255.
Example: send 00 10 01 BD C0
return 00 10 00 7C
【2】Read device address
Send: 00 20 CRC (4 bytes)
Return: 00 20 Address CRC (5 bytes)
Description: Address is 1 byte, the range is 0-255
Example: Send 00 20 00 68
return 00 20 01 A9 C0
【3】Read real-time data
Send: Address 03 00 00 00 01 CRC
Description: As shown in the figure below:
Code
Functional Definition
Remark
Address
Station number
(address)
03
Function code
00 00
Start address
00 01
Read Points
CRC
CRC Check code,
front low and back
high
Return: Address 03 02 XX XX CRC
Description:
Code
Functional Definition
Remark
Address
Station number
(address)
03
Function code
02
Read Unit Bytes
XX XX
Data (High front and
low back)
Hex
CRC
CRC Check code
Steps to calculate CRC code:
1. The preset 16-bit register is hexadecimal
FFFF (that is, all 1). Call this register the CRC
register;
2. XOR the first 8-bit data with the low bit of the

NBL-W-FGS Fruit Growth Sensors
Changsha ZOKO LINK Technology Co., Ltd
3
16-bit CRC register, and put the result in the
CRC register;
3. Shift the content of the register to the right by
one bit (towards the lower bit), fill the highest
bit with 0, and check the lowest bit;
4. If the lowest bit is 0: repeat step 3 (shift again)
If the lowest bit is 1: XOR the CRC register
with the polynomial A001 (1010 0000 0000
0001);
5. Repeat steps 3 and 4 until the right shift is 8
times,so that the entire 8-bit data has been
processed;
6. Repeat steps 2 to 5 to process the next 8-bit
data;
7. The final CRC register is the CRC code;
8. When putting the CRC result into the
information frame, exchange the high and low
bits, with the low bits first.
Electrical Connection Precautions
In order to ensure safety, the electrical
connection should be done by professionals.
Because static electricity can damage the
internal electronic components of the instrument,
the performance of the instrument will be
reduced or damaged. The manufacturer
recommends the following measures to prevent
the instrument from being damaged by static
electricity:
Discharge static electricity from your body
before touching any of the meter's electronic
parts, such as printed circuit boards and the
components on them. This can be done by
touching a grounded metal surface of an
instrument case, or a metal conduit or pipe;
To reduce static buildup, avoid excessive
movement. Ship static-sensitive components in
an antistatic container or packaging;
To discharge static electricity from the user's
body and keep static electricity dischargeable,
wear a wrist static arrestor connected to a
grounded wire;
Use an antistatic floor or bench liner if possible.
Instrument maintenance
Maintenance schedule
Maintenance
task
Cycle
Remark
Clean the
sensor
Weekly
Cleaning
frequency can be
determined
according to the
specific
application
Check the
sensor for
damage
Monthly
Calibrate the
sensor
3D calibration has been done
before leaving the factory,
and users do not need to
calibrate. In special cases, it
can be carried out according
to the maintenance schedule
required by the competent
authority.
Clean the sensor
Clean the outer surface of the sensor with water.
If debris remains, wipe it with a damp soft cloth
or gently brush it with a soft brush.
Do not place the sensor where it will be exposed
to direct sunlight or through reflection.
After-sales service
The device has no moving parts and does
not require complex routine maintenance on
site.
If the user opens the device by himself or
damages the safety seal on it, he will no
longer enjoy our quality assurance and
guarantee.
If there is any problem with the equipment,
you can contact the company's staff to
analyze and answer the problem;

NBL-W-FGS Fruit Growth Sensors
Changsha ZOKO LINK Technology Co., Ltd
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If the equipment needs to be returned, please
carefully pack the instrument according to the
original packaging and mail it to our company,
and attach the detailed fault instructions of the
instrument.
Contact Us
Contact: [phone]/[phone]
Zip code: 421000
Email:[email protected]
Email: [email protected]
Website: http://www.niubol.com
Address: Room 103, Area D, Houhu Industrial
Park, Yuelu District, Changsha City, Hunan
Province,China