INTELLIGENT CONTROL IOTRouter ZHC4013 User guide

ZHC4013 Application Guide
LTE Cat 1 Modbus RTU
Version: ZHC4013_Application Guide_V1.1
Date: 2020-08-10

ZHC4013_Application Guidance
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Content
1 Overview............................................................................................2
1.1 Product introduction................................................................... 2
1.2 Appearance description...............................................................2
2. Quick start.........................................................................................3
2.1. RS485 bus control......................................................................3
2.2. Across Cloud Control................................................................ 4
3. Product features................................................................................ 5
3.1. Serial RS485.............................................................................. 5
3.1.1. Basic parameters.................................................................5
3.1.2. Features...............................................................................5
3.2. System Information....................................................................7
3.3. Timing trigger............................................................................8
3.4. Network subsidiary information................................................ 9
3.5. Status indicator........................................................................ 10
3.6. Restore factory settings............................................................11
3.7. Firmware upgrade.................................................................... 12
4. Product application......................................................................... 13
4.1. Transparent Cloud....................................................................13
4.2.MQTT....................................................................................... 13
4.3. Transparent transmission of vertical and horizontal clouds.... 14
4.4. Zongheng Cloud Platform....................................................... 14
5. Modbus command frame................................................................ 15
5.1 Modbus command frame.......................................................... 15
5.2 Register allocation.................................................................... 15
6.JSON protocol..................................................................................16
7. Update history.................................................................................17
8. Contact............................................................................................18

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1 Overview
1.1 Product introduction
ZHC4013 is a Network IO products with transparent transmission through serial port,
compatible with Modbus RTU/TCP protocol. With "remote control" as the core function, it is
highly easy to use, and users can easily and quickly integrate into their own systems to realize
LTE, RS485 remote and local data collection.
1.2 Appearance description
DC power supply:5.5*2.5mm, 9~36V
Terminal power supply: 3.81mm, 9~36V
Serial port:RS485, 3.81mm terminal block plug-in
SIM:SIM card interface
MAIN:Main antenna

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2. Quick start
This chapter is a quick introduction to the ZHC4013 product. It is recommended that users
read this chapter systematically and follow the instructions to operate it again, and they will have a
systematic understanding of the product. For specific details and instructions, please refer to the
subsequent chapters.
Wiring: The computer connects to ZHC4013 via USB to RS485
Networking: Insert the SIM card when the power is off.
Power supply: ZHC4013 working voltage is DC9~36V.
2.1. RS485 bus control
Select the corresponding port and click "Search" to search for the device.
IO control
For detailed functions of the host computer, please refer to "ZHC4013_Host

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Computer_Application Guide".
2.2. Across Cloud Control
Refer to "ZHC4013_Zongheng Cloud Platform_Application Guide"

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3. Product features
3.1. Serial RS485
3.1.1. Basic parameters
project
Attributes
parameter
Baud rate
Serial port rate
1200~921600bit/s
Stop bit
Stop bit
1/1.5/2
Data bit
Data bit
8/7
Check Digit
Check Digit
None/even parity/odd parity
3.1.2. Features
ZHC4013 supports serial port timing to send heartbeat.
Serial port heartbeat application example:
Write the serial port heartbeat.
effect
project
Attributes
parameter
cycle
Time interval from the last serial port
heartbeat
0~65535 s
length
Serial port heartbeat packet length
0~16
content
Hex format data
Example: Read the address code as 0x554 analog inputs
55 04 00 00 00 04 FC 1D

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3.2. System Information
project
Attributes
parameter
Modbus address
code
Modbus address code
01~FE
DEVID
Factory unique number
Read only
password
The password used to access the ZH-cloud platform
Support 16byte
Escalation mode
Format and channel of actively reported data
Network modbus RTU report
Network modbus TCP report
Network JSON report
Serial modbus RTU report
Serial modbus TCP report
Serial JSON report
Serial + network modbus RTU
report
Serial + network modbus TCP
report
Serial port + network JSON
report
Networking mode
Use the networking mode when accessing to the
crossbar cloud transparent transmission
Enable/Disable
Group ID
Group password
Group ID Devices with the same group password can
establish a networking mode
Support 16byte
Group type
In the same group, different types of equipment can
exchange data
A/B

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3.3. Timing trigger
ZHC4013 supports "Arrival at the set time point (Beijing time), scheduled restart".
project
Attributes
parameter
mode
Whether to turn on this timing trigger
Enable/disable
Timing
Time point when the action is triggered
Hour: 00~twenty three; Minutes: 00~59;
Seconds: 00~60
Action type
Type of action performed
Reboot

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3.4. Network subsidiary information
ZHC4013 supports obtaining SIM card number, signal strength, setting APN, etc.
project
Attributes
parameter
CCID
SIM unique identification number
A combination of 20 numbers and letters. Read
only
Signal strength
The signal strength of the
environment where the device is
located
See appendix QCSQ for details
APN address
Access point settings, dedicated
network card needs to set this
Provided by the operator
APN username
The username required to access the
specified network
Provided by the operator
APN password
The password required to access the
specified network
Provided by the operator

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3.5. Status indicator
name
Features
status
State description
POW
Power Indicator
Chang Liang
System start
Always off
The system does not start
WORK
System working status
indicator
Chang Liang
The network module does not start
1000ms off 1000ms on
Network module is starting
1500ms off 100ms on
100ms off 100ms on
SIM card error
200ms off 200ms on
Get IP
500ms off, 500ms on
The network is normal
SEND
Network data sending
indicator
Always off
SOCKET is not established
Chang Liang
SOCKET has been established
Flashing
Send network data
RECV
Network data receiving
indicator
Always off
default
Chang Liang
Module not started
Flashing
Receive network data

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3.6. Restore factory settings
A) The device can be restored to factory settings by operating the RESET button.
Steps:
Step 1: Power on the device.
Step 2: Press and hold the RESET button until the indicator lights of the device are
all off, and immediately release the reset button, the device is restored to factory settings
successfully.
If it is found that the serial port of the device starts to actively send JSON data packets after
reset, it indicates that the reset button has been pressed for too long and the device enters the local
firmware upgrade mode. At this time, power off the device and perform the reset operation again.
B) Restore factory settings by issuing Modbus/JSON commands.
Modbus instructions:55 06 20 14 00 02 4E 1B
JSON command:{"msgType":"setDeviceConfig","data": {" sysCmd ": "2"}}

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3.7. Firmware upgrade
For the firmware upgrade process, please refer to "ZHC4013_PC_Application Guide"

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4. Product application
4.1. Transparent Cloud
Operation process (take socket1 as an example):
1. Set socket1 parameters
Please confirm the IP address and port of the server to be connected; the registration package
and the heartbeat package are recommended to be enabled, and can be customized if necessary,
and the settings are complete and restarted.
2. Server operation
After the device is connected to the user server, a custom registration package will be sent to
facilitate the customer to identify the device, and then the customer can Modbus ,
JSONprotocol(Please refer to CAT1_JSON_Application guidance)To operate the device, the
device adapts to Modbus RTU/TCP , JSONprotocol.
4.2.MQTT
ZHC4013 supports one MQTT application (connection 1).
When the device actively pushes data, it will select the mode according to the "Data Active
Reporting" option.
In the MQTT application, the picture above means that "application data is encapsulated in
JSON format" and reported through the network in the MQTT protocol. The server can parse the
application data of MQTT according to "CAT1_JSON_ Application Guide".

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4.3. Transparent transmission of vertical and horizontal clouds
Refer to "CAT1_Zonghengyun Transparent Transmission_Application Guide"
4.4. Zongheng Cloud Platform
Refer to "CAT1_Zonghengyun Platform_Application Guide"

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5. Modbus command frame
5.1 Modbus command frame
The ZHC4013 data format follows the general Modbus frame format, and the device can
parse the Modbus RTU/TCP protocol and perform related operations.
Modbus RTU:
Modbus TCP:
5.2 Register allocation
For register address allocation, please refer to "ZHC4013_Register Address Table"

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6.JSON protocol
ZHC4013 supports JSON protocol, please refer to "JSON_Application Guide"

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7. Update history

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8. Contact
Company: Chengdu Zongheng Intelligent Technology Co., Ltd.
Address: 19th Floor, Zhidi Gotan, No. 888 Yizhou Avenue, High-tech Zone, Chengdu, Sichuan
Province
Website: www.iotrouter.com
Phone: [phone]