Savch SMC-W01EN User Manual & Application Case

Savch SMC-W01EN User Manual & Application Case

Programmable logic controller load cell module

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SAVCH Programmable Logic Controller
Load Cell Module
User Manual & Application Case
User Manual

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Summary of Contents for Savch SMC-W01EN

  • Page 1 SAVCH Programmable Logic Controller Load Cell Module User Manual & Application Case User Manual...
  • Page 2: Table Of Contents

    Contents Chapter 1 User Manual ............................1 1. Products receiving ............................1 2. Model description ............................1 3. Product model list & dimensions ........................1 4. Front / side view ............................2 5. Indicator Description .............................2 6. Power Supply Specification ...........................3 7. Environmental Specifications for Product .....................3 8.
  • Page 3: Chapter 1 User Manual

    ●To check whether there are damaged parts during transportation and delivering. If there are, do not connect with power supply. If any of the above checkpoints are not satisfactory, contact your SAVCH ELECTRIC representative for a quick resolution. 1.2 Model description...
  • Page 4: Front / Side View

    1.4 Front / side view ⑧ ⑦ ⑥ ① ⑨ EXC+ ② EXC- SIG+ SIG- ③ 0 1 2 3 ④ SMC-W02EN ⑥ ① LINK 0 1 2 3 ⑤ 1. Terminal definition 6. Pluggable terminal 2. Weighing status indicator 7.
  • Page 5: Power Supply Specification

    1.6 Power Supply Specification Item DC Power Supply Power supply voltage 24VDC -15%~+20% —— Power supply frequency Instantaneous surge MAX 20A 1.5ms @24VDC Permit Power supply loss 10ms or less Isolation Model No Electrical isolation Power Protection DC input power polarity reverse, over voltage protection 1.7 Environmental Specifications for Product Item Environment Specification...
  • Page 6: Multiple-Load-Cell Parallel Connections

    6-wire sensor and instrument connection 6芯传感器与仪表接线图 1.10 Multiple-load-Cell Parallel Connections Load cell Load cell Load cell Load cell Load cell Load cell SMC-W01EN SMC-W02EN Load cell Load cell Load cell Load cell Load cell Load cell 1.11 Terminal connection diagram...
  • Page 7: Module Parameter Table (Cr Code Means The Corresponding Modbus Register Address)

    1.12 Module parameter table (CR code means the corresponding Modbus register address) Note:CR code is corresponding to the Modbus register address. CR code(Hex) Factory communication Function description Property Remarks default address Low byte for Module code, Higher 3-bit of the High-Byte is ID number.
  • Page 8 CR code(Hex) Factory communication Function description Property Remarks default address Channel 1 real-time weight Channel 1 uses 32-bit display flags: 0:16-bit weight display R/W32 1:32-bit weight display Channel 1 Real-time Weight 32 Bit Value: 14H~15H 14H:32-bit low byte 15H:32-bit high byte The average weight of channel 1 is 32 bits: 16H~17H 16H:32-bit low byte...
  • Page 9 CR code(Hex) Factory communication Function description Property Remarks default address Channel 1 Calibration Weighing Instruction Supports Maximum 3-segment Calibration. Write value 1:Enter calibration mode and zero current average weight. Write value 2:End the calibration process. ------------------------------------------------------------- User proofreading steps (16 bits): Step1:No weights on the weighing unit.
  • Page 10 CR code(Hex) Factory communication Function description Property Remarks default address High bytes of base weight of weights in channel 1, paragraph 1 Low bytes of base weight of weights in channel 1, paragraph 2 High bytes of base weight of weights in channel 1, paragraph 2 Low bytes of base weight of weights in channel 1, paragraph 3...
  • Page 11 CR code(Hex) Factory communication Function description Property Remarks default address Channel 2 filter ratio range:0~5 Channel 2 standstill checking times range:0~500 Channel 2 standstill checking range range:0~10000 Channel 2 zero tracking intensity 0 :close zero tracking function Absolute value, others:show zero tracking intensity range:0~200 (absolute value) Absolute value,...
  • Page 12 CR code(Hex) Factory communication Function description Property Remarks default address Step1:No weights on the weighing unit Step2:CR66H write value 1, enter calibration mode. Step3:Paragraph 1:Calibration. Add a standard weight to the weighing unit and write the weight on the current chassis into CR67H 68H.
  • Page 13: Mounting And Installation

    1.13 Mounting and Installation The PLC should be secured to an enclosed cabinet while mounting. For heat dissipation, make sure to provide a minimum clearance of 50mm between the unit and all sides of the cabinet. Rail mounting:Use standard 35 mm rail. Screw mounting:Each MPU or extension Module has two positioning screw holes, the diameter of the hole is 4.5mm.
  • Page 14: Chapter 2 Application Case

    Modules is too big and external loads are too much). SAVCH 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.
  • Page 15: Hardware Configuration

    When we get the weighing Module. The first step: Calibration. The weight can be read directly after calibration. The second step: Read the weight. One is average weight and the other is real-time weight. We usually read average weight. The third step: Adjust the stability and responsiveness of weighing. The above two factors affect the sampling frequency, average number and filtering rate.
  • Page 16 Step3:In the first paragraph, a standard weight is added to the weighing unit, 16-bit scale writes the weight on the current chassis into CR27H, 32-bit scale writes into CR27H and CR28H, if no multi-stage calibration criteria are needed to Step6; Step4:If the second calibration is needed, add another standard weight to the weighing unit, 16-bit scales will write the weight on the current chassis into CR29H, 32-bit scales will write into CR29H and CR2AH, if there is no need for multi-stage calibration criteria to Step6;...
  • Page 17 An example of 32-bit multi-segment calibration program is as follows:...
  • Page 18: Read The Current Weight

    2.1.6 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 weight CR of 16 bits is 12H. The program example is shown below.
  • Page 19 1FH: Filtering Ratio The larger the register value is, the larger the filtering ratio is, the more stable the average weight value (10H), but the delay will increase and the sensitivity will decrease. The function of filtering is to filter the abrupt change so that the average value of the filter can not be affected by the abrupt change.
  • Page 20: Gross Weight And Net Weight

    2.1.8 Gross Weight and Net Weight 1. When the value of 25H is written to 1 and the weight value is 16-bit display, the current 16-bit weight value (10H) is read as the weight value of the leather weight, and the weight value is read as the weight value of the leather weight;...
  • Page 21: Automatic Peeling 2Dh (Judged Every 5S)

    2.1.9 Automatic peeling 2DH (judged every 5S) The weighing platform or equipment will cause dust or residue scattering during weighing process, which will cause the platform to peel automatically when the current weight is not zero without placing any weighing items. If the automatic peeling function is used, as long as the current weight is less than the set automatic peeling weight 2DH value, the weighing module will peel automatically the current value.
  • Page 22: Zero Point Detection Function

    For example, the measurement time is 10ms, the standstill check times is set to 10 times, the checking range is 1000, when the variation range exceeds 1000, the measurement value is unstable, that is, the relevant stable-Bit of CR 11H will be set to 0, when the 100ms (10*10ms) variation range is within the checking range 1000, the relevant stability-Bit will be reset to 1 again.
  • Page 23: Load Cell Module For Remote Io

    2.2 Load cell module for remote IO SAVCH 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).
  • Page 24 ② Connect via Ethernet + communication interface:the Module can connect directly to the computer network port with standard network cable, or the computer and Module will be connected to the Ethernet switch. Software operation steps Click on the software menu bar - "remote Module": The default address of the Module is 1 with format 19200, N 82 RTU, and the online success is as follows: If there is only one plc on the 485 port, then you can use “find standalone”.
  • Page 25: Examples Of Remote Io Applications:reading Module Real-Time Weight

    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 SMC-W01EN Module CR 12H means the real-time weight.
  • Page 26 Step5: If the calibration of paragraph 3 is required, add another standard weight to the weighing unit, and write the weight on the current chassis into CR2AH, otherwise Step6 will be executed. Step6:CR26H writes value 2 to end the calibration process. Examples of multi-segment calibration procedures are as follows:...
  • Page 27 Other parameters configuration and read are also read with MODR and MODW instructions.
  • Page 28 ■ Innovate for more | win forever ■ Industry intelligence | Energy saving | Green power Savch wechat Service Number Quanzhou Factory Address:3# Zixin Road, Jiangnan Hi-Tech Industrial Park, Sales service contact address Quanzhou, Fujian, China Tel:0595-24678267 Fax:0595-24678203 Service Network Website:www.savch.net...

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