

Add to Cart
16 Channel Rj45 Ethernet IO Controller Modbus RTU For Data Acquisition Solutions
Parameters of ZHC1921
Introduction of ZHC1921
ZHC1921 is a network IO product that supports 6-way dry (wet) node detection, 4-way relay (COM, NO) output, 4-way analog (current 4~20mA) detection, and 1-way serial port transparent transmission, compatible with Modbus RTU/TCP protocol. With "remote control" as the core of the function, it is highly easy to use, and users can easily and quickly integrate into their own systems to achieve remote based on Ethernet and RS485 with Local control.
Reset Method
The device can be restored to the field 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 the serial port of the device is found to actively send JSON
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.
The default IP address of ZHC1921 is 192.168.0.65. The
configuration requires that the computer and ZHC1921 IP be set to
the same IP address segment, otherwise the device and the computer
cannot communicate.
ZHC1921 has built-in parameter configuration webpage. Users who use
this device do not need to pay attention to the relevant holding
registers of the device. They only need to understand the reported
data of the device.
Set up ZHC1921 then use the Ethernet cable to connect the network port of the network device (router/switch/other) with ZHC1921. After the device is powered on, observe that the WORK indicator should flash for 3s, indicating that the network hardware environment where the device is located is normal and Ethernet data can be exchanged.
ZHC1921 | |
RS485 Modbus | √ |
RS485 Automatic Acquisition | √ |
Virtual Serial Port | √ |
Connfiguration Software | √ |
Threshold Report | √ |
4 Channel Socket | √ |
Customize the Follow Logic of Ports | √ |
MQTT/Modbus RTU/TCP | √ |