16 Channel Rj45 Ethernet IO Controller Data Acquisition Modbus Rtu Controller

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.

• Function​ of ZHC1921

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.