OneFex KZ-02AL-Pro User manual

KZ-02AL-Pro User Manual
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KZ-02AL-Pro I/O Module
User Manual
V3.0

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Product features...........................................................................................................................3
1. Testing Preparation....................................................................................................................3
2. Function Introduction.................................................................................................................4
2.1 Overview.............................................................................................................................4
2.2 Product Specifications........................................................................................................4
3. Hardware Wiring ........................................................................................................................5
3.1 Power Supply Wiring..........................................................................................................5
3.2 Analog Input Wiring ...........................................................................................................5
3.3 Digital Input Wiring ............................................................................................................7
3.4 Digital Output Wiring .........................................................................................................7
3.5 Terminal Definition.............................................................................................................7
4. Config Tool Guide ......................................................................................................................8
4.1 Login....................................................................................................................................8
4.2 Search and add devices......................................................................................................9
4.3 Model Importing ..............................................................................................................11
4.4 Revise Device Info.............................................................................................................12
4.5 Build &Revise Group.........................................................................................................13
4.6 Add/Delete Models..........................................................................................................14
5Built-in Webpage Configuration .........................................................................................15
5.1 Login..................................................................................................................................15
5.2 Fixed IP..............................................................................................................................15
5.3 Protocol Convert...............................................................................................................17
5.4 Network Parameter Setting..............................................................................................18
5.5 Unmodifiable Items..........................................................................................................19
6Product Maintenance...........................................................................................................20
7After-sale Service .................................................................................................................20
7.1 Commitment.....................................................................................................................20
7.2 Disclaimer .........................................................................................................................21

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Product features
Support 2 analog outputs;；
Support 2-way digital input, compatible with wet and dry nodes;；
Support 2 channels of 4-20ma analog inputs acquisition；
The RS485 serial port is reserved for slave mode, which can be connected to other
Modbus RTU master devices；
Adopt Modbus TCP protocol data processing；
Support to connect to private cloud；
Support hardware watchdog with high reliability;
Multiple indicator lights show working status；
1. Testing Preparation
This test needs to a KZ-02AL, a DC12V/1A power supply, and a router (with
Internet access). The hardware diagram is as follows:
Note: The device is dynamic IP by default. A router (with Internet access) is
recommended to test the connection.

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②In the case of power failure, connect the supporting network cable to the device.
②Use the matching power adapter to supply power to KZ-02AL.
Connect the io module to your router via network cable.
PC and the io module must be in the same network.
2. Function Introduction
2.1 Overview
KZ-02AL-Pro is 2*AO&2*AI&2*DI.
KZ-02AL-Pro can be widely used in farms, agricultural greenhouses, IoT
terminals, water conservancy, electricity, gas collection and control and other
application scenarios, its unique logic control function can easily realize automatic
water supply, fertilization, start and stop valves It is an ideal device for small automatic
control scenes.
KZ-02AL-Pro has RS485 interface, 2-channel analog output, 2-channel analog
acquisition input, 2-channel digital switch value acquisition, and supports 9~40V wide
voltage power supply.
2.2 Product Specifications
⚫Dimensions: 103.8 × 100 × 27 (mm)
⚫Power supply interface: 5.5*2.1cm round plug, positive inside and negative
outside
⚫Working voltage: DC9V~40V
⚫Working current: 100mA MAX
⚫Working temperature: -40℃~85℃
⚫Working humidity: 10%~90% non-condensing

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3. Hardware Wiring
3.1 Power Supply Wiring
The module supports 9-40V working voltage (typical value: DC12V, DC24V)
①The module can be powered directly by the power adapter. The size of the
round head socket is 5.5*2.1cm, and the inside is positive and outside negative.
When using this method to supply power, all VIN+/VIN- of the device will also be
charged, which can supply power to active sensors.
②All VIN+ and VIN- interfaces on the module are also internally connected to the
power input interface, and any set of interfaces can also supply power to the device or
active sensors.
After the power connected normally, WORK light of the module flashes green;
network port light is always on in green and flashes in orange.
3.2 Analog Input Wiring
Two-wire analog sensor wiring:
The positive power of the sensor → VIN+ of the module;
the negative power of the sensor → ADI1 of the module,
as shown in the following figure:

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Three-wire analog sensor wiring:
The positive power of the sensor → the VIN+ of the module;
The Negative power of sensor → VIN- of module;
The signal of the sensor → the ADI of the module,
as shown in the following figure:
Four-wire analog sensor wiring:
The positive of the sensor → the VIN+ of the module;
The negative of the sensor → the VIN- of the module;
The signal negative of the sensor → the VIN- of the module;
The signal positive of the sensor → the ADI of the module.
If the power of the sensor is large, it is not recommended that the sensor take
power from the module, and an additional power supply is required.
as shown in the following figure:

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3.3 Digital Input Wiring
KZ-02AL-Pro has 2 channels (dry node access) for digital switch value acquisition.
The signal form is passive switch input.
If two-wire digital sensor, the negative of sensor needs to be connected to VIN- of
the module, and the signal line is connected to the DI acquisition port;
If three-wire sensor, the positive of sensor connect to VIN+ of the module, the
negative to VIN- of the module, and the signal wire to the DI acquisition port of
module.
Simple test: short-circuit DI1 and VIN- to achieve the first channel switch signal
acquisition.
3.4 Analog Output Wiring
KZ-02AL-Pro has 2 analog output interfaces.
The interface name is DAC OUTPUT, the maximum operating current: 7A
The following figure is method of general analog output wiring to the secondary
instrument. It should be noted that the output of DAC1 is active 4-20ma. When wiring,
be careful to not connect other signal sources such as voltage, that is, DAC1 is used
as the positive signal, V -Negative can be used as a signal.
3.5 Terminal Definition
Port function
Identification
Function description
VIN+
Positive power supply
VIN-
Negative power supply

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ADC INPUT
ADI1
Analog acquisition port 1
ADI2
Analog acquisition port 2
DI INPUT
VIN+
Positive power supply
VIN-
Negative power supply
DI1
Digital Input1
DI2
Digital Input2
DAC OUTPUT
DAC1
Analog Output 1
V-
Negative power supply
V+
Positive power supply
DAC2
Analog Output 2
V-
Negative power supply
V+
Positive power supply
RS 485
Vin+
Positive power supply
VIN-
Negative power supply
A/+
RA485A
B/-
RA485B
4. Config Tool Guide
4.1 Login
Open Devicekey.exe, type password(admin) to login.

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4.2 Search and add devices
Search then AddDevice，and enter the device information, which in accordance with
the module.

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After the addition is complete, go back to the home page, you can control the switch
and read the data of the module.
Among them, AI1 is the collected value of analog quantity 1, and AI2 is the collected
value of analog quantity 2;
DI1 is the acquisition value of the first channel switch signal, DI2 is the acquisition
value of the first channel switch signal;
AI1-liml is the lower limit value corresponding to analog quantity 1, and AI1-limh is the
upper limit value corresponding to analog quantity 1. After filling in this value, the
analog value acquisition (AI1) displays the converted real value;
AI2-liml is the lower limit value corresponding to analog quantity 2, and AI2-limh is the
upper limit value corresponding to analog quantity 2. After filling in this value, the
analog value acquisition (AI2) displays the converted real value;

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4.3 Model Importing
File-Model-Import, and chose file.

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4.4 Revise Device Info

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4.5 Build &Revise Group

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4.6 Add/Delete Models
The parameters of different device models are different, please modify them carefully.
The model template provided by the manufacturer can be directly imported and used.

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5 Built-in Webpage Configuration
5.1 Login
Open http://192.168.3.220 in the browser, enter the user name (admin) and password
(admin) in the pop-up login dialog box, and click Login to open built-in webpage of the
device.
Note: 192.168.3.220 is not the fixed IP of the module. The module defaults to a
dynamic IP, so you can log in to the router to view the assigned device IP or view
current IP of the module through configuration tool (DeviceKey).
5.2 Fixed IP
After successful login, click the system bar (System) above, you can see the network
port setting item (WAN), the default dynamic IP function (DHCP) is enabled, that is,
the module itself has no fixed IP, and depends on the router to allocate IP. Therefore,
users can choose to close DHCP, and then fill in the available IP in the local area

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network, subnet mask (MASK), gateway address (Gateway), and domain name
service (DNS). After the modification is complete, click SAVE, and then click Restart.

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5.3 Protocol Convert
The module's TCP protocol defaults to Modbus TCP, but it can also support Modbus
RTU over TCP, just select "Modbus Gateway" to OFF. That is, when ON is selected, it
is Modbus TCP protocol, and when OFF is selected, it is Modbus RTU over TCP
protocol.

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Note: If users need to communicate with their own server, they can modify the
parameters here as needed. If you still use the software in the LAN provided by our
company, you don’t need to modify it.
5.4 Network Parameter Setting
The module supports two-way socket connections, and SocketA is enabled by default,
which is adapted to the control software in our company's LAN. If users need to
communicate with their own server, they can also modify the parameters here. If you
still use the software in the LAN provided by our company, you don’t need to modify it.

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5.5 Unmodifiable Items
The relevant parameters in the port 1 interface (PORT1), the following parameters of
the serial port part (UART) cannot be modified.

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6 Product Maintenance
1. The working voltage is 9~40V. If the input voltage is too high or too low, the
device may not work normally or even be damaged.
2. The DI input terminal adopts optocoupler isolation protection, and its bearing
voltage is 5~24V.
3. Do not overload for the DO output terminals. Please connect them correctly
within the allowable range (refer to the wiring diagram for details).
4. The allowable air humidity of the device is 10%~90%RH, and it does not
have waterproof capability. Do not use it in condensation or liquid immersion
environments.
5. The relay is a component with a certain service life. When the theoretical
service life is reached, please replace it in time to avoid danger.
7 After-sale Service
7.1 Commitment
OneFex provides after-sales service of the device within 2 yeasr from the date of sale.
But for damage caused by improper use, you need to send it back and take the freight
for repair or adjust. Make sure that the package is in good condition to avoid damage
during transportation. Repair the damage of device instrument is free.