Ebyte E831-RTU Series User manual

Chengdu Ebyte Electronic Technology Co., Ltd. E831-RTU(6060-ETH)User
manual
Copyright ©2012–2019，成都亿佰特电子科技有限公司

Chengdu Ebyte Electronic Technology Co., Ltd. E831-RTU(6060-ETH)User manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd
1
Contens
Features...................................................................................................................................................................................2
1. Quick start...........................................................................................................................................................................3
1.1 Port connection.........................................................................................................................................................3
1.1.1 RS485 connection......................................................................................................................................... 3
1.1.2 Digital input connection................................................................................................................................3
1.1.3 Relay output connection............................................................................................................................... 4
1.2 Simple use................................................................................................................................................................ 4
1.2.1 RS485 bus control.........................................................................................................................................4
1.2.2 Ethernet Control............................................................................................................................................6
2. Product Introduction........................................................................................................................................................... 9
2.1 Basic parameters...................................................................................................................................................... 9
2.2 Size, Interface description...................................................................................................................................... 10
2.3 Reload touch button description.............................................................................................................................13
3. Modbus............................................................................................................................................................................. 14
3.1 Register address table.............................................................................................................................................14
3.2 Modbus Address table............................................................................................................................................16
3.3 RS485 Serial port baud rate code value table........................................................................................................ 16
3.4 RS485 Serial check digit code value table............................................................................................................. 16
3.5 Configuration parameters through the master computer........................................................................................16
4. Product Features............................................................................................................................................................... 18
4.1 Operating mode...................................................................................................................................................... 18
4.1.1 Slave mode..................................................................................................................................................18
4.1.2 Master mode................................................................................................................................................18
4.2 IO Basic function................................................................................................................................................... 19
4.2.1 Switch quantity DO Output........................................................................................................................ 19
4.2.2 Read switch quantity DI input.................................................................................................................... 21
4.3 IO Special function.................................................................................................................................................22
4.4 Network-related functions......................................................................................................................................25
Important statement.............................................................................................................................................................. 36
Revision history.................................................................................................................................................................... 36
About us................................................................................................................................................................................36

Chengdu Ebyte Electronic Technology Co., Ltd. E831-RTU(6060-ETH)User manual
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Features
Support 6 digital inputs, default dry contacts;
Support 6 relay outputs;
Support socket connection, support TCP/UDP;
Data processing using Modbus TCP/RTU protocol;
Support connection to Yitite cloud, command control;
Support two working modes, host mode, slave mode, slave can cascade multiple devices through RS485;
Support Reload touch button, long press 5s, Modbus device address, RS485 serial baud rate and check digit to
restore factory settings;
Hardware watchdog with high reliability;
Multiple indicators indicate the working status;
The power supply has good functions such as overcurrent, overvoltage and anti-reverse connection.
Note: Customer-customizable features such as conditional control (determined based on input status)

Chengdu Ebyte Electronic Technology Co., Ltd. E831-RTU(6060-ETH)User manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd
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1. Quick start
This chapter is a quick introduction to the E831-RTU (6060-ETH) series. It is recommended that the user system
read this chapter and follow the instructions. It will have a systematic understanding of the module products. Users can
also choose the ones you are interested in according to your needs. Chapter reading. For specific details and instructions,
please refer to the following sections.
1.1 Port connection
1.1.1 RS485 connection
1.1.2 Digital input connection

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1.1.3 Relay output connection
1.2 Simple use
Wiring: The computer connects to the E831-RTU (6060-ETH) via USB to RS485; the computer is connected to the
E831-RTU (6060-ETH) via a network cable.
Power supply: E831-RTU (6060-ETH) working voltage is DC 8~28V.
1.2.1 RS485 bus control
Select the appropriate port and click Search to search for the device.
After searching for the device, click "Stop"

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At this time, you can see the device address of the current device, check the "automatic refresh" to control the output of
the switch and read the input of the switch.

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1.2.2 Ethernet Control
At this point, the device address is "1", in "slave mode", local IP "192.168.4.101", subnet mask "255.255.255.0"
"TCP server", port number is 8666;
Right-click Local Connection Settings, PC IP,'192.168.4.10', Subnet Mask,'255.255.255.0';
Open the network port PC, set the port number and other parameters, click on the connection, you can find the
device LINK lights on.

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Controls DO1, DO2, DO3, DO4, DO5, DO6 are closed by the Modbus command "01 0F 00 10 00 06 01 3F 1E 85".

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Chengdu Ebyte Electronic Technology Co., Ltd. E831-RTU(6060-ETH)User manual
Copyright ©2012–2019, Chengdu Ebyte Electronic Technology Co.,Ltd
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2. Product Introduction
E831-RTU (6060-ETH) is a network IO product that supports 6-way digital input (default trunk contacts) and
6-way relay output. Support Modbus TCP/RTU protocol. The product is highly user-friendly, and users can easily and
quickly integrate into their own systems to achieve remote control based on ethernet.
2.1 Basic parameters
project
index
Network parameters
Network port
specifications
RJ45，10/100Mbps
Network protocol
IP、TCP/UDP、ARP、ICMP、IPV4
IP acquisition method
Static IP、DHCP
Domain name resolution
Support
Hardware parameters
Size(H*W*D)
172*107*29mm
Weight
473.1±5g
working temperature
-20℃~+70℃
Storage temperature
-40℃~+85℃
Working humidity
5%~95%
Storage humidity
1%~95%
Operating Voltage
8V~28V
Data interface
RS485：1200~115200bps
Software parameters
Network Type
Ethernet
Configuration command
Modbus TCP/RTU
Network protocol
Modbus TCP/RTU
Operating mode
Master mode, slave mode
Data transmission
method
TCP/UDP

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2.2 Size, Interface description

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No.
Port and other
definitions
function
Description
1
RS485 G
Signal reference
ground
Signal reference ground,you can choose not
connected
2
RS485 A
RS485 interface A
RS485 interface A is connected to device A
interface.
3
RS485 B
RS485 interface B
RS485 interface B is connected to device B
interface.
4
DC-IN -
Crimp line power
input negative
Power reference ground
5
DC-IN +
Pressurized power
input positive
Power input, DC 8V~28V, recommended
12V@500mA/24V@250mA
6
DC-IN Seat
DC socket
5.5*2.1mm
Power input, DC 8V~28V, recommended
12V@500mA/24V@250mA
7
Ground screw
Connected to the
earth
Connected to the earth
8
Reload
Reset button
Long press 5s to work,
9
Ethernet
Network port
Connect to the host computer, computer
Signal interface
1
NO 5
Relay 5 normally
open pin
Cooperate with Relay 5 Common Terminal
2
COM 5
Relay 5 common
Use in conjunction with relay 5 normally open
pin/normally closed pin
3
NC 5
Relay 5 normally
closed pin
Cooperate with Relay 5 Common Terminal
4
NO 6
Relay 6 normally
open pin
Cooperate with Relay 6 Common Terminal
5
COM 6
Relay 6 Common
End
Used with relay 6 normally open pin / normally
closed pin
6
NC 6
Relay 6 Normally
Closed Pin
Used in conjunction with relay 6 common
7
DI 1
Switch Input
Channel 1
Form dry contact with DIG
8
DIG
Switching input
Can be used in pair with DI 1
9
DI 2
Switch Input
Form dry contact with DIG

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Channel 2
10
DIG
Switching input
Can be used in pairs with DI 2
11
DI 3
Digital input
channel 3
Form dry contact with DIG
12
DIG
Switch input
ground
Used in pairs with DI 3
13
DI 4
Switch input
channel 4
Form dry contact with DIG
14
DIG
Switch input
ground
Can be used in pairs with DI 4
15
DI 5
Switch input
channel 5
Form dry contact with DIG
16
DIG
Switch input
ground
Can be used in pairs with DI 5
17
DI 6
Switch input
channel6
Form dry contact with DIG
18
DIG
Switch input
ground
Can be used in pairs with DI 6
19
NC 1
Relay 1 normally
closed pin
Used in conjunction with relay 1 common
20
COM 1
Relay 1 common
end
Used in conjunction with relay 1 normally open
pin/normally closed pin
21
NO 1
Relay 1 normally
open pin
Cooperate with common end of relay 1
22
NC 2
Relay 2 normally
closed pin
Cooperate with Relay 2 Common Terminal
23
COM 2
Relay 2 common
end
Use in conjunction with Relay 2 Normally
Open/Normally Closed Pins
24
NO 2
Relay 2 normally
open pin
Cooperate with Relay 2 Common Terminal
25
NC 3
Relay 3 normally
closed pin
Used in conjunction with relay 3 common
26
COM 3
Relay 3 common
end
Used in conjunction with relay 3 normally open pin /
normally closed pin
27
NO 3
Relay 3 normally
open pin
Used in conjunction with relay 3 common
28
NC 4
Relay 4 normally
closed pin
Used in conjunction with relay 4 common
29
COM 4
Relay 4 common
end
Used with relay 4 normally open pin / normally
closed pin
30
NO 4
Relay 4 Normal
Open Pin
Used in conjunction with relay 4 common
LED light

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1
DO 5
Relay 5 output
indication
Green LED, NO 5, COM 5 are closed
2
DO 6
Relay 6 output
indication
Green LED, NO 6, COM 6 is on and off
3
DI 1
Digital input
channel 1 indication
Green LED, DI 1, DIG shorted up
4
DI 2
Digital input
channel 2 indication
Green LED, DI 2, DIG shorted up
5
DI 3
Digital input
channel 3 indication
Green LED, DI 3, DIG shorted up
6
DI 4
Digital input
channel 4 indication
Green LED, DI 4, DIG short-circuited
7
DI 5
Digital input
channel 5 indication
Green LED, DI 5, DIG short-circuited
8
DI 6
Digital input
channel 6 indication
Green LED, DI 6, DIG shorted up
9
DO 1
Relay 1 output
indication
Green LED, NO 1 and COM 1 are on and off
10
DO 2
Relay 2 output
indication
Green LED, NO 2, COM 2 is on and off
11
DO 3
Relay 3 output
indication
Green LED, NO 3, COM 3 are closed
12
DO 4
Relay 4 output
indication
Green LED, NO 4, COM 4 are closed
13
NET
Network indication
Yellow LED, long after entering the network
14
DATA
Serial data
indication
Yellow LED, RS485 interface lights up when data is
transmitted (expressively flashes)
15
WORK
Work/reset
indication
Yellow LED, flashing regularly / flashing after
successful reset
16
PWR
Power indicator
Red LED, long bright
Note: Grounding: It is recommended to connect the housing to the ground
2.3 Reload touch button description
Long press 5S is valid, after the reset is successful, the WORK lamp flashes quickly, and the Modbus device address,
RS485 serial port baud rate and check digit are restored to the factory settings.

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3. Modbus
3.1 Register address table
Register address table（function code：0x01H、0x05H、0x0FH、0x03H、0x06H、0x10H）
Register
address
Number of
registers
Register attribute
Register
type
Register
value range
Defaults
Support
function code
00017
(0x0010)
1
DO1 switching
output
Read/write
0x0000 or
0xFF00
(0x05
function
code)
0-1 (0x01,
0x0F
function
code)
--
0x01
0x05
0x0F
00018
(0x0011)
1
DO2 switching
output
Read/write
--
00019
(0x0012)
1
DO3 switching
output
Read/write
--
00020
(0x0013)
1
DO4 switching
output
Read/write
--
00021
(0x0014)
1
DO5 switching
output
Read/write
--
00022
(0x0015)
1
DO6 switching
output
Read/write
--
Reserved
10017
(0x0010)
1
DI1 digital input
Read only
0-1
--
0x02
10018
(0x0011)
1
DI2 digital input
Read only
--
10019
(0x0012)
1
DI3 digital input
Read only
--
10020
(0x0013)
1
DI4 digital input
Read only
--
10021
(0x0014)
1
DI5 digital input
Read only
--
10022
(0x0015)
1
DI6 digital input
Read only
--
Reserved
40049
(0x0030)
1
DI1 pulse count
value
Read only
0-65535
--
0x03
40050
(0x0031)
1
DI2 pulse count
value
Read only
0-65535
--
40051
(0x0032)
1
DI3 pulse count
value
Read only
0-65535
--
40052
(0x0033)
1
DI4 pulse count
value
Read only
0-65535
--
40053
(0x0034)
1
DI5 pulse count
value
Read only
0-65535
--
40054
(0x0035)
1
DI6 pulse count
value
Read only
0-65535
--
Reserved
40065
(0x0040)
1
DI1-DI6 pulse
count clear
Write only
0x00 - 0x3F
--
0x06
Reserved
40078
(0x004D)
1
Device address
Read/write
1 - 247
0x01
0x03
0x06
0x10
40079
(0x004E)
1
Baud rate
Read/write
0 - 7
0x03
40080
(0x004F)
1
Check Digit
Read/write
0 - 2
0x00

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40081(0x005
0)
1
Master mode or
slave mode
Read/write
0 - 1
0x01
40082
(0x0051)
1
Automatic
switching of the
switch
Read/write
0 - 2
0x00
40083
(0x0052)
1
Switch output time
setting
(milliseconds)
Read/write
300-65535
--
Reserved
40085
(0x0054)
1
Switch restart
output status setting
Read/write
0x00 - 0x40
0x40
0x03
0x06
0x10
Reserved
40098
(0x0061)
6
Device MAC
address
Read only
--
--
0x03
0x06
0x10
40104
(0x0067)
1
Ethernet restart
Read/write
--
--
40108
(0x006B)
14
WAN port IP
information
Read/write
--
Static IP
192.168.4.101
255.255.255.0
192.168.4.1
40122
(0x0079)
8
Set DNS
information
Read/write
--
61.139.2.69
192.168.4.1
40130
(0x0081)
8
Set network
protocol parameters
Read/write
--
TCPS,192.168.4
.10,
8886
40146
(0x0091)
2
Set the registration
package mode
Read/write
0-4
Close the
registration
package (0x00)
40150
(0x0095)
42
Set the contents of
the registration
package
Read/write
--
regist msg
40234
(0x00E9)
42
Set heartbeat
package content
Read/write
--
heartbeat msg
40318
(0x013D)
2
Set heartbeat packet
mode
Read/write
0-1
Network
heartbeat
package (0x00)
40322
(0x0141)
2
Set heartbeat time
Read/write
0、2-65535
0x00
40330
(0x0149)
2
Set empty cache
Read/write
0-1
Does not clear
the cache data of
the SOCKET A1
link
40336
(0x014F)
6
Set the keep-alive
parameter
Read/write
--
Detection time
10s
Detection
interval 5s
30 times of
detection
40350
(0x015D)
2
Set the local port
number
Read/write
0-65535
8886
40354
(0x0161)
2
Set cloud
passthrough
function
Read/write
0-1
shut down
40356
(0x0163)
2
Set timeout restart
time
Read/write
60-65535
3600
40358
(0x0165)
8
SN code
read
--
--

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3.2 Modbus Address table
Modbus Address table
1（default）
1
2
2
3
3
…
…
245
245
246
246
247
247
3.3 RS485 Serial port baud rate code value table
Serial port baud rate code
value table
0
1200
1
2400
2
4800
3（default）
9600
4
19200
5
38400
6
57600
7
115200
3.4 RS485 Serial check digit code value table
Check digit code value table
0（default）
No parity
1
Even parity
2
Odd parity
3.5 Configuration parameters through the master computer
Select the “Parameter Setting”column to read the parameters, write the parameters, and implement the functions.

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See the product function description below.

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4. Product Features
4.1 Operating mode
The working mode is divided into master mode and slave mode, which are configured by Modbus register 40081
(0x0050). When the register value is 0, it is the master mode; when the register value is 1, it is the slave mode, the default
slave mode.
4.1.1 Slave mode
In slave mode (register value 0x01), the data sent to the device by the network or 485 terminal (sender) satisfies the
Modbus RTU, Modbus TCP protocol, and the address in the data is the device address, and the device will reply with the
same protocol. If the data sent by the network or 485 bus to the device does not satisfy the Modbus RTU, Modbus TCP
protocol, or the Modbus RTU or Modbus TCP protocol is met but the data address is not the device address, the data of
the sender will be discarded.
In the slave mode, the device can directly connect to the device in the host mode through the 485 bus. When the
slave is not connected to the network, the network can also access the data of the slave through the host.
4.1.2 Master mode
In master mode (register value is 0x00), the data sent by the network or 485 bus (transmitter) to the device satisfies
the Modbus RTU, Modbus TCP protocol, and the address in the data is the device address, and the device responds to the
sender with the same protocol. If the data sent by the network or 485 bus to the device does not satisfy the Modbus RTU,
Modbus TCP protocol, or the Modbus RTU, Modbus TCP protocol but the data address is not the device address, the data
from the 485 bus will be transmitted to the network. On the network, the data from the network will be transmitted to the
485 bus.

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This function of the master mode enables device cascading functions and data transfer between the 485 bus and the
network.
4.2 IO Basic function
4.2.1 Switch quantity DO Output
DO Output of Read Switch quantity
Function code: 01, read coil status
Address range: 00017 (0x0010) ~00022 (0x0015)
Explanation: When equipment relay passive output and coil is not powered on, relay NC port and COM port are
usually closed, NO port and COM port are often open, with a value of 0; when coil is energized, the phenomenon is
opposite, relay NC port and COM port are disconnected, NO port and COM port are closed, with a value of 1. Query
relay status by instruction.
Example:
Read the output state of six switches, assuming that the return value is 03, corresponding to the binary bit 0000 0011,
low six bits represent the output state of the switch quantity, in turn, DO6, DO5, DO4, DO3, DO2, DO1.
Modbus RTU Protocol Reads Switch quantity Output：
Send
01
01
00 10
00 06
BD CD
Device ModBus
address
function
code
Switch switch
quantity start address
Read switch switch
quantity number
CRC check code
Receive
01
01
01
03
11 89