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Haiwell PLC - Load Cell Module Application Example 

 

 

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the  100ms  (10*10ms)  variation  range  is  within  the  checking  range  1000,  the  relevant  stability-Bit  will  be  reset  to  1  again.  It  is 

recommended to judge the stability before controlling it. 

12.Zero point detection function 

Zero point tracking is related to address CR22H and CR23H. 

Zero tracking density for CR 22H Channel 1. 0: close zero point tracking function; other values (absolute value) for zero tracking. 

Under normal circumstances, it shows 0 after calibration. Sometimes, however, there is a small fluctuation due to equipment jitter 

and other reasons. This fluctuation range is defined as 0 if it is in the tolerable range set by CR22H. 

13.Restore factory default parameters 

The default parameter to restore the factory is CR 9FH register.The CR will remain at 1 during normal operation. When the factory 

value is restored, write CR to CR[159], and then restore the factory value after re-powering. 

 

Recoverable CR include:   

1.32-bit display [CR19/CR83] (0/16-bit display)                   

2. Skin weight [CR24 25/CR88 89] (0)   

3. Gross/Net Weight Display [CR26/CR90] (0/Gross Weight)   

4. Automatic peeling range [CR45/CR109] (0)   

5. Sampling frequency [CR27/CR91] (2/30Hz)   

6. Average number of times [CR30/CR94] (10)   

7. Filtering Proportion [CR31/CR95] (2) 

8. Number of stability checks [CR32/CR96] (5) 

9. Stability check range [CR33/CR97] (2) 

10. Zero Judgment Scope [CR35/CR99] (10) 

11. Weight upper limit [CR36/CR100] (32767) 

12. Zero tracking strength [CR34/CR98] (0) 

13. Channel 1 and 2 base point weights 1 low byte [CR39/CR103] (2000) 

14. Channel 1 and 2 base weight 1 high byte [CR40/CR104] (0) 

15. Channel 1 and 2 base weight 2 high and low bytes [CR41 42/CR105 106] (0) 

16. Channel 1 and 2 base weight 2 high and low bytes [CR43 44/CR107 108] (0) 

Two. Load Cell Module for remote IO   

Haiwell extension Module has a RS485 communication port (part models with additional Ethernet communication interface), 

which supports parallel bus (the parallel interface with PLC host by extending the extension bus) and the serial bus (using the 

RS485 communication port with the communication port of the PLC, the host plc using the communication instruction to control 

the remote Module). When you use the serial connection, then the remote IO Module is not limited by system IO points, and can 

be distributively installed. 

It  is  very  important  for  Distributed  installation  to  collect  or  monitor  a  large  number  of  discrete  DI/DO  or  analog  signals 

Содержание PLC

Страница 1: ...Xiamen Haiwell Technology Co Ltd en haiwell com Load Cell Module User Manual Application Case Haiwell PLC User Manual Classic Programmable Logic Controller...

Страница 2: ...sample 11 6 Read Average Weight and Real time Weight 13 7 Adjustment for weighing stability and response speed 14 8 Gross Weight and Net Weight 16 9 Automatic peeling 2AH Judge every 5S 17 10 Weighin...

Страница 3: ...ation of Module No light MPU has identified the Module but no communication Constant light in green Serial or parallel port in communication Green jitter indicator on 30ms and off 30ms Parallel power...

Страница 4: ...20 240 480 960Hz Internal resolution 24bits linearity error Static weighing 0 02 FS Excitation Voltage 5VDC 5 125mA it can connect with 4 load Cells each 350 Sensor sensitivity 1mV V 5 mV V Load Cell...

Страница 5: ...3 19200 4 38400 5 57600 6 115200 R W 48 19200 N 8 2 RTU 03H Module name R W 04H Module name R W 05H Module name R W 06H Module name R W 07H IP Address default 192 168 1 111 R W 0x016F 08H IP Address...

Страница 6: ...Z value and store them at 18H and 19H R W 0 0 no operation 1 Read the weight value as the tare weight and store it at 18H and 19H Others Invalid 26H Channel 1 Calibration Weighing Instruction Support...

Страница 7: ...annel 2 Skin Weight Low Bytes R W 0 16 bits only use 58H 32 bits use 58H 59H 59H Channel 2 Skin Weight High Bytes R W 0 5AH Channel 2 Control Setting Bit 0 Reservation Bit 1 Gross Net Weight Display 0...

Страница 8: ...and write the weight on the current chassis into CR67H 68H Step4 If the second calibration is needed add another standard weight to the weighing unit and write the weight on the current chassis into...

Страница 9: ...a better heat dissipation do not mount PLC to a position near to the bottom top of the cabinet Do not mount PLC in vertical direction Extension Module wiring Connections between extension Modules and...

Страница 10: ...pply 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 po...

Страница 11: ...bit 32 bit weight switching can be realized by CR13H 16 bit display for 13H writing 0 and 32 bit display for writing 1 The program example is as follows 5 Calibration methods and program examples The...

Страница 12: ...en haiwell com Haiwell PLC Load Cell Module Application Example 12 24 An example of 32 bit multi segment calibration program is as follows...

Страница 13: ...13 24 6 Read the current weight The weight read by module is divided into average weight and real time weight Usually we read average weight The average weight CR of 16 bits is 10H and the real time...

Страница 14: ...s The two factors that affect the stability and responsiveness of the module are sampling frequency average number of times and filtering ratio So we can adjust the above three parameters to achieve t...

Страница 15: ...10 to 50 The default is 2 that is 20 assuming the average number of times is 10 then the system will arrange the 10 data collected from large to small and the filtering ratio is 20 That is to say two...

Страница 16: ...32 bit display the current 32 bit weight value 16H 17H is read as the weight value of the leather weight and stored in 18H and 19H 2 18H 19H store the skin weight value 3 Enable control settings It i...

Страница 17: ...imit and the upper weight limit CR is 24H Bit2 When this bit is 1 it means that the measurement of weighing unit reaches a stable state and the range value of stability judgment and the number of chec...

Страница 18: ...Gross Weight 4 Automatic peeling range CR45 CR109 0 5 Sampling frequency CR27 CR91 2 30Hz 6 Average number of times CR30 CR94 10 7 Filtering Proportion CR31 CR95 2 8 Number of stability checks CR32 C...

Страница 19: ...e 2400 4800 9600 19200 38400 57600 115200 optional Data format N 8 2 RTU E 8 1 RTU O 8 1 RTU N 8 1 RTU E 7 1 ASCII O 7 1 ASCII N 7 2 ASCII RS485 default parameters 19200 N 82 RTU station number 1 4 Wh...

Страница 20: ...there is only one plc on the 485 port then you can use find standalone If there are many set the start address and stop address so that all the machines on the 485 port can be found and the parameters...

Страница 21: ...table above we can see that the H01WG Module CR 12H means the real time weight PLC program this example H01WG communication is the default parameter station number 1 baud rate 19200 data format N 82 R...

Страница 22: ...t on the current chassis into CR29H otherwise Step6 will be executed Step5 If the calibration of paragraph 3 is required add another standard weight to the weighing unit and write the weight on the cu...

Страница 23: ...en haiwell com Haiwell PLC Load Cell Module Application Example 23 24...

Страница 24: ...her parameters configuration and read are also read with MODR and MODW instructions Thanks for choosing Haiwell PLC If you have any questions about our products or services please let us know Haiwell...

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