HKT043CMC-C
LCD Module User Manual
Prepared by:
Checked by:
Approved by:
Song Mao
Date: 2023-09-25
Date:
Date:
Rev. Descriptions
Edit
Release Date
0.1
- Preliminary Draft release
Song Mao
2023-08-10
0.1
- Update Section 7
Song Mao
2023-09-25
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 1 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
Table of Content
1 Basic Specification .......................................................................................................................................... 3
1.1 General Specification..................................................................................................................................3
1.2 Block Diagram.............................................................................................................................................3
1.3 Terminal Function....................................................................................................................................... 4
2 Absolute Maximum Ratings............................................................................................................................4
3 Electrical Characteristics ................................................................................................................................5
3.1 DC Characteristics...................................................................................................................................... 5
4 Function Specifications.................................................................................................................................. 6
4.1 Basic Operation Function Descriptions .......................................................................................................6
4.2 Modbus configuration Descriptions.............................................................................................................6
5 Optical Characteristics ....................................................................................................................................7
6 LCD Module Design and Handling Precautions........................................................................................... 8
7 Assemble Precaution...................................................................................................................................... 9
Warranty.............................................................................................................................................................10
Appendix A:.......................................................................................................................................................11
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 2 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
1 Basic Specification
TOPWAY HKT043CMC-C is a Smart TFT Module with 32bit MCU on board. Its graphics engine provides
numbers of outstanding features. It supports TOPWAY SGTools for preload and pre-design display
interface that simplify the host operation and development time. Suitable for industry control,
instrumentation, medical electronics, power electric equipment applications.
1.1 General Specification
Screen Size(Diagonal) :
4.3”
Resolution :
480(RGB) x 272
Color Depth :
65k color (16bit)
Pixel Configuration :
RGB Stripe
Display Mode :
Transmissive / Normal White
Viewing Direction :
12H (*1) (gray-scale inverse)
6H (*2)
Outline Dimension :
128.0 x 102.0 x 32.0 (max) (mm)
(see attached drawing for details)
Active Area :
95.04 x 53.86 (mm)
Backlight :
LED
Command I/F:
RS485
Power Supply:
8.0 ~ 58.0V
Project Download:
by U-Drive
Operating Temperature :
-20 ~ +70°C
Storage Temperature :
-30 ~ +80°C
RTC without battery, Casing, Support 90 degrees rotation,
Highlight
Lua script engine, Buzzer ， 256MB flash
Note:
*1. For saturated color display content (eg. pure-red, pure-green, pure-blue, or pure-colors-combinations).
*2. For “color scales” display content.
1.2 Block Diagram
Touch Panel
4.3” TFT
480x272 pixels
K3
VDD,VSS,FG
K2
Display Function Controller
A1,B1
A2,B2,VSS
K1
D-, D+
Flash
Memory
RAM
VUSB, VSS
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 3 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
1.3 Terminal Function
USB Interface Terminal (K1,USBA)
Pin No.
Pin Name
I/O Descriptions
1
VUSB
P
Power supply(5.0V)
2
D-
I/O
USB DATA negative signal
3
D+
I/O
USB DATA positive signal
4
VSS
P
Ground, (0V)
Note.
*1. TML files and image files preload through this terminal
*2. During the files transfer, all others display functions will be suspended
RS485 Interface Terminal (K2,DB9)
Pin No.
Pin Name
I/O Descriptions
1
B2
I/O
RS485 Differential Signal B
2
A2
I/O
RS485 Differential Signal A
3
NC
--
No connection, leave open
4
NC
--
No connection, leave open
5
VSS
P
Ground, (0V)
6
NC
--
No connection, leave open
7
B1
I/O
RS485 Differential Signal B
8
A1
I/O
RS485 Differential Signal A
9
NC
--
No connection, leave open
Note.
*1. User data and commands transfer through this terminal
*2. HW hand shake is suggested
Power Interface Terminal (K3,P5.08×3)
Pin No.
Pin Name
I/O Descriptions
1
VDD
P
Power supply (8.0~58.0 V)
2
VSS
P
Ground, (0V)
3
FG
--
Case Ground
2 Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Power Supply voltage
V dd
-0.3
58.0
V
RS485 A/B Input Voltage
V AB
-7.0
13.0
V
Operating Temperature
T OP
-20
70
C
No Condensation
Storage Temperature
T ST
-30
80
C
No Condensation
Notes:
*1.This rating applies to all parts of the module and should not be exceeded.
*2.The operating temperature only guarantees operation of the circuit. The contrast, response speed and the other
specification related to electro-optical display quality is determined at the room temperature, TOP=25 ℃ Ambient
temperature when the backlight is lit (reference value)
*3.Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional
operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure
to extreme conditions may affect device reliability.
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 4 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
3 Electrical Characteristics
3.1 DC Characteristics
VSS=0V, VDD=12.0V, T OP =25 C
Items
Symbol
MIN.
TYP. MAX.
Unit Applicable Pin/FUNC
Operating Voltage
V DD
8.0
12.0
58.0
V
VDD
Differential Driver Output
(with load)R=50 Ω ( *1)
V OD
2
-
5
V
A/B
Receiver Differential
Threshold Voltage
V TH
-0.2
-
0.2
V
A/B
Operating Current
I DD
-
150
-
mA
VDD
(*2)
Battery Supply Current
I BAT
-
1.2
-
uA
Notes:
*1.
A
(max=3V)
B
The Matching resistance at both ends of A and B is 120Ω;
A internal pull up at 1K;
B internal pull down at 1K;
*2.Normal display condition
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 5 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
4 Function Specifications
4.1 Basic Operation Function Descriptions
HKT043CMC-C
Touch Panel
TML/XML files
U-Drive
Picture files
ICONS files
Custom
Memories
TFT Display
PC
VP variables
Control and Draw Engine
- TML files, images, icons are stored inside the flash memory area. They are pre-loaded into the
HKT043CMC-C via USB-Drive.
- The GUI’s appearance and responses are based on the preloaded TML files
- The Control- and Drawing- Engine executes RS485 / Modbus RTU commands.
-
4.2 Modbus configuration Descriptions
The HKT043CMC-C needs to add the configuration file "modbus.xml" to the project generated
by the TOPWAY RGTools to describe the relationship between the screen variables and the
registers of the Modbus Slave device.
Please refer to Appendix A for "Modbus.xml" formating.
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 6 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
5 Optical Characteristics
Item
Symbol
Condition
MIN.
TYP.
MAX.
UNIT
Note.
θ L
9 o’clock
70
80
-
Viewing angle
θ R
3 o’clock
70
80
-
(CR ≥ 10)
degree
*2
θ T
12 o’clock
70
80
-
θ B
6 o’clock
50
60
-
T f
Response Time
-
20
30
msec
*3
T r
Contrast ratio
CR
700
900
-
-
Normal
W X
0.255
0.305
0.355
-
*1
Color chromaticity
θ=0 o
W Y
0.277
0.327
0.377
-
Luminance
L
-
300
-
cd/m 2
*4
Luminance uniformity
Y U
75
80
-
%
*4
Note:
*1. Definition of Contrast Ratio
The contrast ratio could be calculate by the following expression:
Contrast Ratio (CR) = Luminance with all pixels white / Luminance with all pixels black
*2 Definition of Viewing Angle
*3 Definition of response time
*4 Definition of Luminance Uniformity
Luminance uniformity (Lu)=
Min. Luminance form pt1~pt9 / Max Luminance form Pt1~pt9
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 7 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
6 LCD Module Design and
6 液晶显示模块设计和使用须知
Handling Precautions
- Please ensure V0, VCOM is adjustable, to enable LCD - 请注意 V0, VCOM 的设定, 以确保液晶显示模块在不同
module get the best contrast ratio under different
的使用温度下以及在不同的视角和位置观察模块显示，
temperatures, view angles and positions.
均能达到最佳对比度，请务必将应用电路上设置为对比
- Normally display quality should be judged under the
度可调。
best contrast ratio within viewable area. Unexpected - 请注意液晶显示模块的显示品质判定是指在正常对比度
display pattern may come out under abnormal contrast
下以及视窗(V.A)范围内进行的，非正常对比度下液晶可
ratio.
- Never operate the LCD module exceed the absolute
能会出现非预期的显示不良，应注意区分。
maximum ratings.
- 请勿在最大额定值以外使用液晶显示模块。
- Never apply signal to the LCD module without power - 请勿在没有接通电源的条件下，给液晶显示模块输送信
supply.
号。
- Keep signal line as short as possible to reduce external
- 请尽可能缩短信号线的连接，以避免对液晶显示模块的
noise interference.
信号干扰。
- IC chip (e.g. TAB or COG) is sensitive to light. Strong - 集成电路因 IC 芯片(如 TAB 或 COG)对紫外线极为敏感，
light might cause malfunction. Light sealing structure
强光环境下可能会引起液晶显示模块功能失效，故应采
casing is recommended.
用不透光的外壳。
- Make sure there is enough space (with cushion) - 请在液晶显示模块与外壳之间保留足够的空间(可使用衬
between case and LCD panel, to prevent external force
垫)，以缓冲外力对液晶显示模块的损坏或因受力不均而
passed on to the panel; otherwise that may cause
产生的显示不匀等异常现象。
damage to the LCD and degrade its display result.
- Avoid showing a display pattern on screen for a long
- 避免液晶显示屏在某一画面下长时间点亮，否则有出现
time (continuous ON segment).
残影的风险；请通过软件每隔一段时间改变一次画面。
- LCD module reliability may be reduced by temperature - 液晶显示模块的可靠性可能因温度冲击而降低。
shock.
- 请勿在阳光直射、高湿、高温或低温下储存和使用液晶
- When storing and operating LCD module, avoids
exposure to direct sunlight, high humidity, high or low
显示模块，这将造成液晶显示模块的损坏或失效。
temperature. They may damage or degrade the LCD
module.
- Never leave LCD module in extreme condition
- 请勿在极限环境(最大/最小存储/工作温度)下使用或放
(max./min storage/operate temperature) for more than
48hr.
置液晶显示模块超过 48 小时以上。
- Recommend LCD module storage conditions is - 液晶显示模块建议存储条件为: 0 C~40 C <80%RH 。
0 C~40 C <80%RH.
- 请勿让液晶显示模块存储于带有 酸性, 碱性, 有害气体
- LCD module should be stored in the room without acid,
环境之中。
alkali and harmful gas.
- Avoid dropping & violent shocking during
- 在运输过程中, 请勿让液晶显示模块跌落与猛烈震动,
transportation, and no excessive pressure press,
同时避免 异常挤压, 高湿度, 与阳光照射.
moisture and sunlight.
- 液晶显示模块极易受静电损坏，请务必保证液晶显示模
- LCD module can be easily damaged by static
块在防静电的工作环境中使用或保存。(如: 烙铁正确接
electricity. Please maintain an optimum anti-static
working environment to protect the LCD module. (eg.
地,等)
ground the soldering irons properly)
-
- Be sure to ground the body when handling LCD - 拿取液晶显示模块时需注意操作人员的接地情况。
module.
- 请手持液晶显示模块的边沿取放模块，防止热压纸或
- Only hold LCD module by its sides. Never hold LCD
module by applying force on the heat seal or TAB.
TAB 部位受力。
- When soldering, control the temperature and duration - 焊接液晶模块时，请注意控制烙铁的温度、焊接时间，
avoid damaging the backlight guide or diffuser which
以免烫坏导光板或偏光片，导致显示不匀等不良现象发
might degrade the display result such as uneven
生。
display.
- Never let LCD module contact with corrosive liquids,
- 请勿使用洗板水等腐蚀性液体接触液晶模块，以免腐蚀
which might cause damage to the backlight guide or
导光板或模块电路。
the electric circuit of LCD module.
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 8 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
- Only clean LCD with a soft dry cloth, Isopropyl Alcohol - 仅可使用柔软的干布, 异丙醇或乙醇清洁液晶屏表面，
or Ethyl Alcohol. Other solvents (e.g. water) may
其他任何溶剂(如:水)都有可能损坏液晶模块。
damage the LCD.
- Never add force to components of LCD module. It may
- 请勿挤压液晶显示模块上的元器件，以避免产生潜在的
cause invisible damage or degrade the module's
损坏或失效而影响产品可靠性。
reliability.
- 装配液晶显示模块时，请务必注意避免液晶显示模块的
- When mounting LCD module, please make sure it is
扭曲或变形。
free from twisting, warping and bending.
- Do not add excessive force on surface of LCD, which
- 请勿挤压液晶显示屏表面，这将导致显示颜色的异常。
may cause the display color change abnormally.
- 液晶屏由玻璃制作而成，任何机械碰撞(如从高处跌落)
- LCD panel is made with glass. Any mechanical shock
均有可能损坏液晶显示模块。
(e.g. dropping from high place) will damage the LCD
module.
- Protective film is attached on LCD screen. Be careful - 液晶屏表面带有保护膜, 揭除保护膜时需要注意可能产
when peeling off this protective film, since static
生的静电。
electricity may be generated.
- Polarizer on LCD gets scratched easily. If possible, do
- 因液晶显示屏表面的偏光片极易划伤，安装完成之前请
not remove LCD protective film until the last step of
尽量不要揭下保护膜。
installation.
- 请缓慢揭除保护膜，在此过程中液晶显示屏上可能会产
- When peeling off protective film from LCD, static
生静电线，此为正常情况，可在短时间内消失。
charge may cause abnormal display pattern. The
symptom is normal, and it will turn back to normal in a
short while.
- 请注意避免被液晶显示屏的边缘割伤。
- LCD panel has sharp edges, please handle with care.
- 请不要试图拆卸或改造液晶显示模块。
- Never attempt to disassemble or rework LCD module.
- 当液晶显示屏出现破裂, 内部液晶液体可能流出; 相关
- If display panel is damaged and liquid crystal
substance leaks out, be sure not to get any in your
液体不可吞吃, 绝对不可接触嘴巴, 如接触到皮肤或衣
mouth, if the substance comes into contact with your
服, 请使用肥皂与清水彻底清洗.
skin or clothes promptly wash it off using soap and
water.
7 Assemble Precaution
安装注意事项
1. Customer front panel opening and thickness for TOPWAY
display module should be fit for its assembling and sealing.
The suggested assemble gap(A) should be about
0.3~0.5mm on each side.
The suggested front panel thickness(B) should be
about 1.5~4.0mm.
客户面板开窗及厚度应适合 TOPWAY 显示模块的安装及密
封 .
2. A silicon sealing ring ships with TOPWAY display module.
It should be in place before assembling to the front panel.
TOPWAY 显示模块上的硅胶密封圈在安装时确保嵌入到
位 .
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 9 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
3. It should fix the TOPWAY display module into the front
panel with two steps.
Pre-fixing: Slightly tighten the screws on beam clamp in
sequence as picture on the right side.
Final-fixing: Tighten the fixing screws on beam clamp in
sequence as well with twist torque about 4~6kg.cm
(*1) . and put the beam clamp straight.
Note:
*1. Over tightening might damage the shell and cause bad sealing result.
应分两步将 TOPWAY 显示模块固定在面板上 .
并注意卡扣置正无歪斜 .
注 :
*1. 过度拧紧可能会损坏外壳和影响密封效果 .
4. It is strongly suggested to check the seal balancing of the
four-side of the TOPWAY display module.
The suggested after assemble sealed gap(C) should be
about 0.8~1.2mm.
需注意检查 TOPWAY 显示模块四周在安装后保证平衡密封 .
5. Others:
Never hot plug the device! Power off the device before connect or disconnect the display module.
Don't forget to remove the cover protective film for normal operation.
其它 :
Warranty
This product has been manufactured to our company’s specifications as a part for use in your company’s general
electronic products. It is guaranteed to perform according to delivery specifications. For any other use apart from general
electronic equipment, we cannot take responsibility if the product is used in medical devices, nuclear power control
equipment, aerospace equipment, fire and security systems, or any other applications in which there is a direct risk to
human life and where extremely high levels of reliability are required. If the product is to be used in any of the above
applications, we will need to enter into a separate product liability agreement.
- We cannot accept responsibility for any defect, which may arise form additional manufacturing of the product
(including disassembly and reassembly), after product delivery.
- We cannot accept responsibility for any defect, which may arise after the application of strong external force to the
product.
- We cannot accept responsibility for any defect, which may arise due to the application of static electricity after the
product has passed our company’s acceptance inspection procedures.
- When the product is in CCFL models, CCFL service life and brightness will vary according to the performance of the
inverter used, leaks, etc. We cannot accept responsibility for product performance, reliability, or defect, which may
arise.
- We cannot accept responsibility for intellectual property of a third part, which may arise through the application of our
product to our assembly with exception to those issues relating directly to the structure or method of manufacturing of
our product.
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 10 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
Appendix A:
Modbus RTU Master Xml configure v1.01
配置文件 Modbus.xml 文档示例
<Modbus>
<config>
<relative vpaddr="0x080000" vplen="1" slaveID="1" mbaddr="0x40000" mblen="1"/>
<relative vpaddr="0x080002" vplen="1" slaveID="1" mbaddr="0x40001" mblen="1"/>
<relative vpaddr="0x080004" vplen="1" slaveID="1" mbaddr="0x40002" mblen="1"/>
<relative vpaddr="0x020000" vplen="1" slaveID="1" mbaddr="0x40008" mblen="2"/>
<relative vpaddr="0x080034" vplen="1" slaveID="1" mbaddr="0x4000A" mblen="1"/>
</config>
<global>
<Read condition = "always" vpaddr_condition="0x080004" value_condition="100"
slaveID="1" mbaddr ="0x40008" mblen= "2" />
<BLCtrl condition = "==" vpaddr_condition="0x080004" value_condition="100"
value_type="const" vpaddr_val ="64" />
<BeepCtrl condition = "==" vpaddr_condition="0x080004" value_condition="100"
value_type="variable" vpaddr_val ="0x80034" />
</global>
<Page PageNo="1">
<Read condition = "always" vpaddr_condition="0x080004" value_condition="100"
slaveID="1" mbaddr ="0x40000" mblen= "3" />
</Page>
</Modbus>
说明：
配置类
说明
功能
<config>
关系定义
relative
- 定义 VP 与 MB 的对应关系
- 当 VP 内容被修改 , 模块会同时拷贝相关内容到 MB
<global>
定义全局的周期性操作
Read
- 读 MB
- 可按条件操作
- 模块会参考 <config>, 同时拷贝相关值到 VP (*1)
Write
- 写 VP
- 可按条件操作
- 模块会参考 <config>, 同时拷贝相关值到 MB(*1)
< Page
定页面 n 中的周期性操
BLCtrl
PageNo=n> 作
- 背光亮度设定
- 可按条件操作
BeepCtrl
- 蜂鸣器控制
- 可按条件操作
注释 :
VP= 智能模块块中的 VP 变量 ( 含 地址 )
MB= MODBUS 变量 ( 含 从设备 , 从地址 )
注 :
*1. 相关 MB 关联 VP, 必须在 <config> 中定义
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 11 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
元素 <relative>: 描述屏工程中变量与 modbus 地址变量的映射关系
属性
描述
vpaddr
屏的变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
vplen
变量个数，请填入 1
slaveID
操作的 Modbus Slave 设备 ID 号
mbaddr
Modbus 寄存器地址
0x coil : 地址 0x00000~0x0270F
1x input : 地址 0x10000~0x1270F
3x input Register : 地址 0x30000~0x3270F
4x holding Redister : 地址 0x40000~0x4270F
mblen
Modbus 地址数量 , 需要使 modbus 和 vpaddr 地址变量比特位相等
元素 <Read>: 依条件执行读取 Modbus 地址变量
属性
描述
condition
执行条件
"always",">","==","<","!=",">=","<="
vpaddr_condition 条件左值变量地址，参数为 16 进制数值以 "0x" 开头的屏变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
仅条件 ">","==","<","!=",">=","<=" 有效
value_condition
条件右值对比值，参数为 10 进制数值
slaveID
操作的 Modbus Slave 设备 ID 号
mbaddr
Modbus 寄存器地址
0x coil : 地址 0x00000~0x0270F
1x input : 地址 0x10000~0x1270F
3x input Register : 地址 0x30000~0x3270F
4x holding Redister : 地址 0x40000~0x4270F
mblen
Modbus 地址数量
元素 <BLCtrl>: 依条件执行控制屏背光亮度为常量或变量 vpaddr_val 的值
属性
描述
condition
执行条件
"always",">","==","<","!=",">=","<="
vpaddr_condition 条件左值变量 ，参数为 16 进制数值以 "0x" 开头
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
仅条件 ">","==","<","!=",">=","<=" 有效
value_condition
条件右值对比值，参数为 10 进制数值
value_type
操作值为常量或者变量
参数值可选 "const" ， "variable"
vpaddr_val
Value_type ="const" 时，参数为 10 进制数值
Value_type ="variable" 时，参数为 16 进制数值以 "0x" 开头的屏变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 12 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
元素 <BeepCtrl>: 依条件执行控制蜂鸣器是否响 , 当常量值或变量 vpaddr_val 非 0 时蜂鸣器响 , 否则反
之。
属性
描述
condition
执行条件
"always",">","==","<","!=",">=","<="
vpaddr_conditio
条件左值变量地址，参数为 16 进制数值以 "0x" 开头的屏变量地址
n
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
仅条件 ">","==","<","!=",">=","<=" 有效
value_condition
条件右值对比值，参数为 10 进制数值
value_type
操作值为常量或者变量
参数值可选 "const" ， "variable"
vpaddr_val
Value_type ="const" 时，参数为 10 进制数值
Value_type ="variable" 时，参数为 16 进制数值以 "0x" 开头的屏变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
元素 <Write>: 依条件执行写操作，将常量或变量 vpaddr_val 写入 vpaddr 指定的地址中
属性
描述
condition
执行条件
"always",">","==","<","!=",">=","<="
vpaddr_condition 条件左值变量地址，参数为 16 进制数值以 "0x" 开头的屏变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
仅条件 ">","==","<","!=",">=","<=" 有效
value_condition
条件右值对比值，参数为 10 进制数值
value_type
操作值为常量或者变量
参数值可选 "const" ， "variable"
vpaddr_val
Value_type ="const" 时，参数为 10 进制数值
Value_type ="variable" 时，参数为 16 进制数值以 "0x" 开头的屏变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
vpaddr
需要写入操作的变量地址 , 对应屏变量地址
0x80000: 16 位数据变量
0x20000: 32 位数据变量
0x30000: 64 位数据变量
vplen
VP 地址数量
注：
mbaddr: 指 Modbus 寄存器地址
0x coil : 地址 0x00000~0x0270F
1x input : 地址 0x10000~0x1270F
3x input Register : 地址 0x30000~0x3270F
4x holding Register : 地址 0x40000~0x4270F
vpaddr : 指屏的变量
0x80000: 16 位数据变量，对应 modbus 1 个 3x 和 4x 地址 ,16 个 0x 和 1x 地址
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 13 of 14
TOPWAY
LCD Module User Manual
HKT043CMC-C
0x20000: 32 位数据变量，对应 modbus 2 个 3x 和 4x 地址 ,32 个 0x 和 1x 地址
0x30000: 64 位数据变量，对应 modbus 4 个 3x 和 4x 地址 ,64 个 0x 和 1x 地址
屏变量与 modbus 位地址的关系以 16 位变量对应关系为例
16 位变量 Bit15
Bit8
Bit7
Bit0
0x coil
0x0000F
0x0000
0x00007
0x00000
8
1x input
0x1000F
0x1000
0x10007
0x10000
8
URL: www.topwaydisplay.com
Document Name: HKT043CMC-C-Manual-Rev0.2.doc
Page: 14 of 14
