Haiwell PLC User Manual

en.haiwell.com Haiwell PLC - Load Cell Module Application Example
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Application example of load Cell Module
One. The Module is extended through the parallel port of the host
(The sample program is H01WG and H02WG 1 channel program, the method of using 1, 2 channels is the same, as long as the
CR number is changed to the corresponding value of the second channel.)
1. Load Cell Modules Power Supply
All expansion Modules of Haiwell do not require external power supply, can be directly powered by the parallel port of the host.
If the PLC is 24VDC power supply, the external switching power supply is supplied to the host, and the extensions are powered by
the parallel port from the host plc. The Module power supply is essentially from the external switch power supply, so the Module
needs no additional external power supply. If the expansion Module has insufficient power supply (the PWR light on the Module is
not bright), the external switching power supply capacity is not enough. The correct approach is to enlarge the power supply of the
external switch power.
If the host PLC is 220VAC power supply, the extension Modules are powered by the parallel port from the host plc, the expansion
Module does not need to connect the external power supply; if the expansion Module is in insufficient power supply (the PWR
lamp on the Module is not bright), the correct approach is to supply the power supply Module only by a single switch power supply.
(This case happens when the number of expansion Modules is too big and external loads are too much).
Haiwell extension Module can be used as remote IO, so it will not be restricted by the number of system I/O points, and can be
installed distributively, reducing cable wiring and solving the problem of interference caused by the long distance of traditional
wiring. When Modules are used as remote IO, they need power to be supplied externally The external power supply of the Module
is optional with 24VDC and 220VAC.
2. Load Cell Module Operation Procedure
When we get the weighing Module.
The first step: Calibration. The weight can be read directly after calibration.

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)