RuiDeng DPH5005 User manual

Hangzhou Ruideng Technology Co., Ltd.
OPERATING MANUAL
DPH5005 Digital Power Supply Upper Computer
(For Win7 and above)
1 Communication Board Connetion
1.1 Wire Communication Board Connection
Open data package, double click CH341SER.EXE and install drive
program of communication board.
After installation, please use the attach cable to connect
digital power supply with communication board, and use USB cable to
connect Micro UBB port with PC.
Digital power supply communication data setting:
Keep pressing ↑button to power on, then enter into data setting
interface. Press ↑or↓ to choose data, then press knob to adjust the
value. After adjustment, press twice shortly SET key to exist data
setting, and those data are stored automatically.
COMM: Communication stitch setting, ON represents opening
communication, OFF represents closing communication.
ADDR: Digital power supply address code, range 001-255.
BAUD: Communication baud rate, 2400,4800,9600,19200 adjusting.
BPIN: Bluetooth PIN Code Pairing, 0000-9999, useless for wire
communication.

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1.2 Bluetooth communication board
Bluetooth communication board is Bluetooth 2.0 protocol. Please
use the attached cable to connect digital power supply with
bluetooth communication board. After power on, the LED on the
board will blink; so the bluetooth is in the state of searching.
Now open the PC bluetooth and right click bluetooth icon to add
device. Laptop can use its own blue teeth, and desktop can use the
attached USB bluetooth adapter. When you insert the adapter into
desktop, the driver will be installed automatically, and there
will be bluetooth icon on desk state bar.

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After searching, the bluetooth device will show and the last 3 bit
001 of name represent address code of digital power supply.
When connect bluetooth device, please enter pairing code, the
default password is 1234.

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Hangzhou Ruideng Technology Co., Ltd.
After connecting, the system will download and install Virtual
serial port driver of bluetooth automatically. The smaller number
CMO is what we use, eg COM3, we need to choose COM3 on upper
computer.
If we need to adjust communication data, the operation is similar
as wire communication.
Note:
1, The power supply voltage of communication interface is DC 3.3V and power supply
ability is limit. Don’t connect other big power bluetooth or WIFI module, otherwise it
will be burnt.
2, when using the bluetooth communication function, if power off for digital power
supply, you need to choose COM interface to connect bluetooth module again after
power on.
3, If the LED on bluetooth module is blinking, it shows it is on the state of
disconnection. If LED is lighting, it shows it is on the state of connection
4, When using bluetooth function, don’t put bluetooth module in the metal box,
otherwise it will affect signal strength.
5, When changing communication data of digital power supply, you must disconnect
bluetooth with PC, the LED will be blinking. Otherwise you can change the data of
bluetooth board.
6, For computer operating system, please install official version. if you install pirated
or lite operating system, there may be a lack of bluetooth virtual serial port driver on
those operating system, and the system can’t assign COM port to bluetooth board.
And it can’t communicate with the upper computer.
2.Instal the upper computer software
Open data package, unzip upper computer software.

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Double click setup.exe and install upper computer software.
Select installation directory, and click next.
Click next to install, and wait installation to complete.

Hangzhou Ruideng Technology Co., Ltd.

Hangzhou Ruideng Technology Co., Ltd.
3 Software operating
Double click short-cut icon on the desk to open upper computer
software.
After opening software, select serial port, baud rate and slave address, and cli
ck online to communicate. After online, all the button of digital power supply are locked
automatically; click “open” to open output of digital power supply. Basic function contai
ns voltage and current setting, quick call out and brightness adjustment function. Advanc
ed function contains data group reads and writes, automatic test, voltage scan and current scan
function.

Hangzhou Ruideng Technology Co., Ltd.

DPH5005 CNC Power Communication Protocol V1.2
Communication protocol overview:
The communication protocol for this device is specifically MODBUS RTU. This can be used via RS232, RS485 or
Bluetooth serial interface.
Note, This product only supports MODBUS RTU Function Codes 0x03 (03H), 0x06 (06H), 0x10 (10H)
II. Communication protocol described:
Message transmission is asynchronous, Modbus-RTU is in 11-bit bytes.
(For a full description of the general MODBUS RTU Protocol see http://modbus.org/docs/PI_MBUS_300.pdf)
Modbus is a generic protocol. The implementation of the location and function of registers is specific to the
designer of this device however the format of the command structure for the Modbus Communication is fixed and
as detailed in the above referenced document. Below is a brief introduction to the Standard Modbus RTU
protocol and the registers and Modbus RTU Function Codes used in this specific device.
Data Format:
Serial data format
10 (binary system)
Start bit
1
Data bits
8
Parity bit
No
Stop bit
1
Data frame structure:
Data-frame interval
Address code
Function code
Data area
CRC Check
3.5 Bytes more
1 Bytes
1 Bytes
N Bytes
2 Bytes
Before sending data, the bus silent period (no data transmition time) is more than 3.5 character, (eg: Baud rate is
9600, the time is 5ms).
RTU messages start with a silent interval of at least 3.5 character time periods.Following the last transmitted
character, a similar interval of at least 3.5 character times marks the end of the message. A new message can
begin after this interval.
The entire message frame must be transmitted as a continuous stream. If a silent interval of more than 3.5
character times occurs before completion of the frame, the receiving device flushes the incomplete message and
assumes that the next byte will be the address field of a new message.
Similarly, if a new message begins earlier than 3.5 character times following a previous message, then the
receiving device will consider it to be a continuation of the previous message. This will set an error, as the value
in the final CRC field will not be valid for the combined messages.
1.1 Address Field:
The address field of a message frame contains eight bits, from 1 to 255. This byte shows the slaver of setting
address by user will receive the message form main. Every slaver must have unique address field, and only the
salver fits the address field, it can respond loopback message. When slaver send the message back, the
loopback data will begin with its own address filed. The address field sent by the main is the address filed the
salver received, and the loopback address filed is the loopback slaver filed address. The corresponding address
filed show where it come from.
1.2 Function Field:
The Function Code field tells the addressed slave what function to perform. This device only supports the
functions 0x03 0x06 0x10.
Function code
Define
Operations (binary)
0x03
Read Holding Register
Read one or more registers in the slave.
0x06
Write single register
Writes binary data to a single register.
0x10
Write multiple registers
Writes values into a sequence of holding registers.

1.3 Data area:
The data bytes contain any additional information that the slave will need to perform the function. For example,
function code 03 will request the slave to read holding registers and respond with their contents. The data field
must contain the information telling the slave which register to start at and how many registers to read.
In the Response, the data bytes contain the data collected from the slave, such as register values or status. If an
error occurs, the function code is modified to indicate that the response is an error response, and the data bytes
contain a code that describes the error.
The 3 MODBUS RTU Function Codes used by this device: (ONLY these three codes)
0x03 Read Holding Register(s):
Address
code
Function
code
Register starting
address
Number of register addresses
n ( 1 ~ 32 )
CRC Check
1 Bytes
1 Bytes
2 Bytes
2 Bytes
2 Bytes
0x03 Read Holding Register(s) function returns the following format.
Address code
Function
code
Returns the
number of bytes
2*n
Register data
CRC Check
1 Bytes
1 Bytes
1 Bytes
2*n Bytes
2 Bytes
0x06 Write Single Register.
Address code
Function code
Register address
Register data
CRC Check
1 Bytes
1 Bytes
2 Bytes
2 Bytes
2 Bytes
0x06 Write Single Register function returns the following format.
Address code
Function code
Register address
Register data
CRC Check
1 Bytes
1 Bytes
2 Bytes
2 Bytes
2 Bytes
0x10 Write Multiple Registers.
Address
code
Function
code
Register
starting
address
Number of
register
addresses
n ( 1 ~ 32 )
Number of
bytes written
2*n
Register
data
CRC
Check
code
1 Bytes
1 Bytes
2 Bytes
2 Bytes
1 Bytes
2*n Bytes
2 Bytes
0x10 Function: Returns the following format.
Address code
Function code
Register starting
address
Number of register
address
n ( 1 ~ 32 )
CRC Check code
1 Bytes
1 Bytes
2 Bytes
2 Bytes
2 Bytes
Register Map for this device.
Function
Description
Number of
bytes
Decimal
places
UNIT
Read/Write
Register address
U-SET
Voltage setting
2
2
V
R/W
0000H
I-SET
Current setting
2
3
A
R/W
0001H
UOUT
Output voltage display value
2
2
V
R
0002H
IOUT
Output current display value
2
2
A
R
0003H
POWER
Output power display value
2
1 or 2
W
R
0004H
UIN
Input voltage display value
2
2
V
R
0005H
LOCK
Key lock
2
0
-
R/W
0006H
PROTECT
Protection status
2
0
-
R
0007H
CV/CC
Constant Voltage / Constant
Current status
2
0
-
R
0008H
ONOFF
Switch output state
2
0
-
R/W
0009H
B_LED
Backlight brightness level
2
0
-
R/W
000AH
MODEL
Product model
2
0
-
R
000BH
VERSON
Firmware Version
2
0
-
R
000CH

EXTRACT_M
Shortcut to bring up the
required data set
2
0
-
R/W
0023H
U-SET
Voltage settings
2
2
V
R/W
0050H
I-SET
Current setting
2
3
A
R/W
0051H
S-OVP
Over-voltage protection value
2
2
V
R/W
0052H
S-OCP
Over-current protection value
2
3
A
R/W
0053H
S-OPP
Over power protection
2
1
W
R/W
0054H
B-LED
Backlight brightness levels
2
0
-
R/W
0055H
M-PRE
Memory Preset Number
2
0
-
R/W
0056H
S-INI
Power output switch
2
2
-
R/W
0057H
NOTE :
1. This product has user programmable ‘Data Groups’ which each store preset user values. The groups are
named M0-M9 giving a total of 10 ‘Data Groups’. Each data group has a subset of 8 parameters at number 10-17.
And The ‘M0’ Data Group is the power-on default data group. M1 and M2 is the shortcut bring up data group.
M3-M9 are ordinary storage data groups. Each Data Group (M0-M9) start address is calculated by the following
formula: 0050H + (Data group number * 0010H).
For example, M3 Data Group has the starting address as follows: 0050H + (3 * 0010H) = 0080H.
2. Key lock function reading and writing value are 0 and 1, 0 represents not lock, 1 represents lock
3, Protection status reading value are 0-3, 0 represents good running, 1 represents OVP, 2 represents OCP, 3
represents OPP.
4, Constant voltage and constant current reading value are 0-1, 0 represents CV, 1 represents CV.
5, Control output function reading and writing value are 0-1, 0 represents close, 1 represents open.
6, Level of backlight rank reading and writing value is 0-5, 0 represents the darkest, 5 represents the brightest.
7, shortcut bringing up data groups function writing value are 0-9, after writing, all corresponding data group are
extracted.
1.4 Error-checking:
In RTU mode, messages include an error–checking field that is based on a Cyclical Redundancy Check (CRC)
method. The CRC field checks the contents of the entire message. It is applied regardless of any parity check
method used for the individual characters of the message.
CRC Calculation method:
The Cyclical Redundancy Check (CRC) field is two bytes, containing a 16-bit binary value. The CRC value is
calculated by the transmitting device, which appends the CRC to the message.
The receiving device recalculates a CRC during receipt of the message, and compares the calculated value to
the actual value it received in the CRC field. If the two values are not equal, an error results.
The CRC is started by first preloading a 16-bit register to all 1's. Then a process begins of applying successive
eight-bit bytes of the message to the current contents of the register. Only the eight bits of data in each character
are used for generating the CRC. Start and stop bits, and the parity bit, do not apply to the CRC.
During generation of the CRC, each eight-bit character is Exclusive ORed with the register contents. The result is
shifted in the direction of the least significant bit (LSB), with a zero filled into the most significant bit (MSB)
position.
The LSB is extracted and examined. If the LSB was a 1 then an Exclusive OR (XOR) of the register with a pre-
set, fixed value takes place. If the LSB was a 0, no Exclusive OR (XOR) takes place.
This process is repeated until eight shifts have been performed. After the last (eighth) shift, the next eight-bit
character is exclusive ORed with the register's current value, and the process repeats for eight more shifts as
described above. The final contents of the register, after all the characters of the message have been applied, is
the CRC value.

Three examples of communication using the three available MODBUS
Functions Codes supported on this device. (0x03) (0x06) and (0x10)
1 : Read the displayed output voltage and current value. (Using Function 0x03)
Message format sent from Host:
Host sends
Number of
bytes
Information sent
Notes
Slave address
1
01
From host to slave address 01H
Function code
1
03
Read holding register(s)
Register starting
address
2
0002H
Register starting address
Number of registers to
read
2
0002H
A total of 2 registers (4 byte = 2
words)
CRC Checksum:
2
65CBH
CRC Checksum from Host:
For example if the displayed values are 05.00V , 5.000A , The Slave return response would be:
Slave responds
Number of
bytes
The
information
returned
Notes
Slave address
1
01
From slave address 01H
Function code
1
03
Read holding register
Number of bytes read
1
04
A total of 4 Bytes
The contents of 1st register read
2
01F4H
Output voltage display
values
The contents of 2nd register read
2
1388H
Output current display value
CRC Checksum:
2
B76BH
CRC Checksum from Slave
2 : Host to set the voltage to 24.00V. (Using Function 0x06)
Message format sent from host:
Host sends
Number of
bytes
Information
sent
Notes
Slave address
1
01H
From host to slave address
01H
Function code
1
06H
Write single register
Register address
2
0000H
Register address
The value to write to the register
2
0960H
Set the output voltage
CRC Checksum
2
8FB2H
CRC Checksum from host
Message format returned from Slave:
Slave responds
Number of
bytes
The
information
returned
Notes
Slave address
1
01H
From slave address 01H
Function code
1
06H
Write single register
Register address
2
0000H
The Register address
The contents of the register read
2
0960H
Value read
CRC Checksum
2
8FB2H
CRC Checksum from slave
3 : Host to set the voltage to 24.00V , The current 1.500A. (Using Function 0x10 (decimal 16))
Message format sent from HOST:
Host sends
Number of
bytes
Information
sent
Notes
Slave address
1
01H
From host to slave address
01H
Function code
1
10H
Write multiple registers
Register starting address
2
0000H
Register the starting address
Quantity of registers to write to
2
0002H
2 registers
Number of bytes to write
1
04H
4 Bytes = 2 words = 2 registers
Contents of 1st register
2
0960H
Set the output voltage
Contents of 2nd register
2
05DCH
Set the output current
CRC Code:
2
F2E4H
CRC Checksum from Host:

Message format returned from Slave
From machine
responses
Number
of bytes
The information
returned
Notes
Slave address
1
01H
From Slave address 01H
Function code
1
10H
Write multiple registers
Register the starting
address
2
0000H
Register starting address
Number of registers
written
2
0002H
2 registers written to
CRC Code:
2
41C8H
CRC Checksum from Slave: