Temperature and humidity transmitter instruction manual (485 type) V1.0

RS-WS-N01-5
The wall temperature andhumidity transmitter
operation instruction（Type 485）

Document version：V1.0

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Temperature and humidity transmitter instruction manual (485 type) V1.0

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Temperature and humidity transmitter instruction manual (485 type) V1.0

Context
1. Product Introduction........................................................................................................................4
1.1 Product summary.................................................................................................................. 4
1.2 Function feature.....................................................................................................................4
1.3 Main technology parameter.................................................................................................. 4
1.4 System frame diagram...........................................................................................................4
2. Device Installation Instruction........................................................................................................ 52.1 Check before the device installation..................................................................................... 5
2.2 Joggle instruction.................................................................................................................. 5
2.3 Electrical wiring................................................................................................................. 5
2.4 Wall installation..................................................................................................................5
2.5 The spot wire arrangement of 485 instruction................................................................... 6
3. Configuration Software Installation and Application..................................................................... 6
3.1 Software selection.............................................................................................................. 63.2 Parameter setting................................................................................................................... 7
4. Communication Agreement............................................................................................................ 8
4.1 Communication basic parameter .........................................................................................84.2 The concept of data frame format......................................................................................... 94.3 Register address.....................................................................................................................94.4 Communication agreement example and explaining............................................................9
5. Common Problem and Solution....................................................................................................105.1 Device can not be connected with PLC or computer......................................................... 10
6. Contact Information...................................................................................................................... 107. Document History......................................................................................................................... 108. Shell Size....................................................................................................................................... 11Shandong RenKe Control Technology Co.,Ltd.

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www.sdrkck.comTemperature and humidity transmitter instruction manual (485 type) V1.0

1. Product Introduction
1.1 Product summary
RS-WS-N01-5 series temperature and humidity transmitter selects inward high-accuracy
temperature and humidity measure unit ， high stability ， small drift and high repeatable ， andselecting wall mounting type shell makes it easy to hang on the wall, it is the most ideal solution
scheme in HAVC monitoring application area. this product is widely applied in automation 、HVAC、archives library where needs the temperature and humidity monitor or auto-controlling.

1.2 Function feature
Applying Swiss inward measure unite, measurement accuracy, and using professional 485
electric circuit makes the communication stable. Powered by 10V-30V wide voltage, Complete
specifications and convenient to install.

1.3 Main technology parameter
Supply power：10~30V DC

Humidity measurement range ：0~100% RH

Temperature measurement range：-40℃~80℃(personal) Humidity accuracy：±3%RH(default)
Temperature accuracy：±0.5℃(default)

Work environment：-20℃~60℃,0~80%RH

Output signal：RS485

Parameter configuration：software setting

1.4 System frame diagram

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Temperature and humidity transmitter instruction manual (485 type) V1.0

2. Device Installation Instruction
2.1 Check before the device installation
Device list:■ One transmitter equipment■ Certificate, warranty card, and after sales service card and so on■ one 12V/2A waterproof power（select）■ USB transfer to 485（select）■ 485terminal resistance（select）

2.2 Joggle instruction
Range 10V-30V of wide voltage is available in power input, the A wire and B wire can not be
connected contrary when connecting to 485 signal, and the address among several devices on thetotal wire can not be conflicted.

2.3 Electrical wiring

Order

Identific

Instruction

NO.

ation

8A

485-A

7V+Power

Remarkinput

10~30V DCpositive
6V-Ground power

5

B

485-B

2.4 Wall installation
1

Slightly pressing the fastener on the back of transmitter and opening the transmitter rear cover

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Temperature and humidity transmitter instruction manual (485 type) V1.0

② Taking the wire that need to connect to cross over the cable hole on the rear cover of thetransmitter and using bolt driver to wring on the relevant terminals.

③Fastening the rear cover on the wall by bolt driver and installing the front cover fastener.

2.5 The spot wire arrangement of 485 instruction
When several 485 devices connect to the same electrical wire, there are some requirements
for the spot wire and the details refer to <485 device spot wire arrangement handbook.

3. Configuration Software Installation and Application
3.1 Software selection
Opening the datagram, and choosing “test software” ---- “485 parameter setting software” andfinding out
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Temperature and humidity transmitter instruction manual (485 type) V1.0

3.2 Parameter setting① select the right COM port (“my computer——properties——deceive manager——Port”) andcheck the COM port from the Port, the name of several different kinds of 485 transmitter drive② connect with only one device and be powered, and click “test the baud rate” of thesoftware to test the device baud rate and address, the default baud rate is 4800bit/s anddefault address is 0x01
③change the address and baud rate based on the application requirement, and meanwhile thecurrent situation of the device function can be checked④if the test is not success, please check the device wring and 485 drive installation
situation again

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Temperature and humidity transmitter instruction manual (485 type) V1.0

4. Communication Agreement
4.1 Communication basic parameterCode

8 bit binary system

Data Bit

8 bit

Odd-even Revi-si

None

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Temperature and humidity transmitter instruction manual (485 type) V1.0

on BitStop Bit

1bit

Incorrect Revis-iCRC（Redundant cyclic codes）

on
Baud Rate

2400bit/s, 4800bit/s, 9600 bit/s options, the factory default 4800bit/s

4.2 The concept of data frame format
Apply Modbus-RTU communication rules，the format below：
Initial structure ≥4 byte time
Address code = 1 byte
Function code = 1 byte
Data area = N byte
Incorrect revision = 16 byte CRC code
Ending structure ≥4 byte time
Address code：the address of the transmitter，and will be the only (factory default 0x01) in thecommunication net..
Function code：the order function orders from host computer, this transmitter only uses function
code 0x03(reading register date).
Data area：data area is the specific communication data, attention16bits data high byte in front!
CRC code：two byte revision code.
Main computer enquires frame structure
Address Code Function

Register Origin

CodeRegister Length

Address

Revision Code

Revision Codein Low Positio in High Position
n

1byte

1byte

2bytes2bytes

1byte

1byte

Data Area N

Revision

Accessorial computer replying frame structure：
Address

Function

Effectiveness

Data Area

Data Area

CodeCodeByte NO.

OneTwo

1byte

1byte

1byte

2bytes2bytesCode2bytes

2bytes

4.3 Register address
Register Address

PLC or Configuration

ContentOperation

Address
0000 H

40001

Humidity

Read only

0001 H

40002

Temperature

Read only

4.4 Communication agreement example and explaining
For example：reading price of temperature and humidity in device address 0x01
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Temperature and humidity transmitter instruction manual (485 type) V1.0

enquiry frame：Address

Function

Code

Code0x010x03

OriginData LengthAddress
0x00 0x00

0x00 0x02

Revision Code

Revision Codein Lowin High

Position

Position

0xC40x0BReplication frame： (when reading temperature is -10.1℃，humidity is 65.8%RH）
Return Byte

Address

Function

Code

Code0x01

0x03

Number0x04

Humidity

Temperature Revision Code
NumberNumber

0x02 0x92 0xFF 0x9B

Revision Codein Low

in High

Position

Position

0x5A

0x3D

Temperature calculation ：When temperature is under 0 ℃, the temperature date will be updated in complement code.
Temperature：FF9B H(hexadecimal)= -101 => temperature = -10.1℃
Humidity calculation：
Humidity：292 H (hexadecimal)= 658 => humidity = 65.8%RH

5. Common Problem and Solution
5.1 Device can not be connected with PLC or computer
Reasons possible:
1) Several COM ports in the computer, the port be chosen is incorrect.
2) The device address is wrong, or some device addresses are repeat.(all factory defaults are 1).
3) Baud rate, revision mode, data position and stop position are wrong.
4) The main computer and polling interval is too small and time waiting for replying is too short, andall need to set over 200ms.
5) The 485 general wire is broken or the A wire and B wire are connected in the wrong side.
6) Too many devices or too long wires, the power need to be chosen nearby, add 485 intensifier, and add 120Ω
terminal electric resistance.
7) The driver of USB transfer to 485is not installed or damaged.
8) The device is broken.

6. Contact Information
Shandong RenKe Control Technology Co.,Ltd.
Address：NO.2886 Feng Qi road Gaoxin district Jinan City Shandong Province
Post code：250101
Tel：+86-531-58720832
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Temperature and humidity transmitter instruction manual (485 type) V1.0

Fax：+86-531-67805165Website address: en.sdrkck.com

7. Document History
V1.0

Document building.

8. Shell Size
Total size：100×85×26mm

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