Haiwell PLC User Manual

en.haiwell.com Haiwell PLC - Load Cell Module Application Example
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communication parameters, and then download it after modification.
6.Examples of remote IO applications: reading Module real-time weight
①:hardware wiring: the 485 ports of the host PLC and the load Cell Module are connected by the shielded twisted cable and the
A+ is connected by A+ and B- to B-. If PLC connects to multiple weighing Modules, it is necessary to connect by mode of “hand by
hand”.
②: Modbus address: from the CR parameter table above, we can see that the H01WG Module CR 12H means the real-time
weight.
③PLC program: this example H01WG communication is the default parameter: station number 1, baud rate 19200, data format N
82 RTU. PLC reads the 4 Channels values as follows:
7.Examples of remote IO applications: calibration
The weighing Module supports three segments of calibration, and can realize multi-scale calibration. Take Channel 1 as an
example, the tutorial steps are as follows:
Step1: No weight is put on the weighing unit.
Step2: CR26H write value 1, enter the calibration mode;
Step3: Paragraph 1 is calibrated by adding a standard weight to the weighing unit and writing the weight on the current chassis
into CR27H.

Haiwell PLC Specifications

General

Series	Haiwell PLC
Programming Language	Function Block Diagram
Communication Ports	RS232, RS485, Ethernet
Digital Inputs	Varies by model (e.g., 8, 16, 32)
Digital Outputs	Varies depending on the model (e.g., 8, 16)
Analog Inputs	Varies by model (e.g., 4, 8)
Analog Outputs	Varies by model (e.g., 2, 4)
Power Supply	24V DC
Real-Time Clock (RTC)	Yes
Expansion Modules	Yes, supports various expansion modules for I/O, communication, and special functions
Input Voltage	24V DC
Data Memory	Varies depending on the model
Humidity Range	5% to 95% (non-condensing)