3 changed files with 205 additions and 192 deletions
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42src/src/main/java/com/my/graphiteDigesterBg/diframe/actuator/DiActLcLtcCondenser.java
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198src/src/main/java/com/my/graphiteDigesterBg/diframe/actuator/impl/DiActHeaterTokyGteModbusRtuOverTcp.java
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157src/src/main/java/com/my/graphiteDigesterBg/diframe/connection/DiConModbusRTUOverTCP.java
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package com.my.graphiteDigesterBg.diframe.actuator; |
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import com.my.graphiteDigesterBg.diframe.DiActuatorBase; |
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import com.my.graphiteDigesterBg.diframe.connection.DiConModbusRTUOverTCP; |
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public class DiActLcLtcCondenser extends DiActuatorBase { |
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// host |
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private String host; |
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// port |
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private Integer port; |
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// slave id |
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private Integer slaveId; |
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// heater key |
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private String ioKey; |
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|
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// set enable |
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public void setEnable( Boolean enable ) { |
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// nothing to do here |
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} |
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|
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// set temperature |
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public void setTemperature( Integer temperature ) { |
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temperature = temperature * 10; |
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var con = DiConModbusRTUOverTCP.getConnection(this.host, this.port); |
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con.writeHoldingRegister(this.slaveId, 2, temperature); |
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} |
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|
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// start |
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public void start() { |
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int status = 0; |
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status = status | 0x4000; // 设置第14位为1 允许制冷 |
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status = status | 0x2000; // 设置13位为1开启循环 |
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status = status | 0x0800; // 设置第11为为1 接通电源 |
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var con = DiConModbusRTUOverTCP.getConnection(this.host, this.port); |
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con.writeHoldingRegister(this.slaveId, 5, status); |
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} |
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|
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// stop |
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public void stop() { |
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int status = 0; |
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var con = DiConModbusRTUOverTCP.getConnection(this.host, this.port); |
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con.writeHoldingRegister(this.slaveId, 5, status); |
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} |
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} |
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package com.my.graphiteDigesterBg.diframe.connection; |
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import java.io.DataOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.net.Socket; |
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import java.util.ArrayList; |
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import java.util.HashMap; |
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import java.util.List; |
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import java.util.Map; |
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public class DiConModbusRTUOverTCP { |
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// connection |
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private Socket socket; |
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// writer |
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private DataOutputStream writer; |
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// reader |
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private InputStream reader; |
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// busy |
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private Boolean isBusy = false; |
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|
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// connections |
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private static final Map<String, DiConModbusRTUOverTCP> connections = new HashMap<>(); |
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|
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// get connection |
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public static DiConModbusRTUOverTCP getConnection( String host, Integer port) { |
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String key = host + ":" + port; |
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if ( connections.containsKey(key) ) { |
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return connections.get(key); |
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} |
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|
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DiConModbusRTUOverTCP con = new DiConModbusRTUOverTCP(); |
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con.connect(host, port); |
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connections.put(key, con); |
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return con; |
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} |
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|
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// constructor |
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private DiConModbusRTUOverTCP() { |
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this.isBusy = false; |
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} |
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|
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// connect |
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public void connect( String host, Integer port ) { |
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try { |
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this.socket = new Socket(host, port); |
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this.writer = new DataOutputStream(this.socket.getOutputStream()); |
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this.reader = this.socket.getInputStream(); |
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} catch (Exception e) { |
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throw new RuntimeException(e); |
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} |
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} |
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|
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// write holding register |
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public void writeHoldingRegister( Integer slaveId, Integer address, Integer value ) { |
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byte[] cmd = new byte[8]; |
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cmd[0] = (byte)(slaveId & 0xFF); // slave id |
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cmd[1] = 0x06; // function code |
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cmd[2] = (byte)(address >> 8); // address high |
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cmd[3] = (byte)(address & 0xFF); // address low |
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cmd[4] = (byte)(value >> 8); // value high |
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cmd[5] = (byte)(value & 0xFF); // value low |
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this.call(cmd); |
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} |
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|
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// read holding register |
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public Integer readHoldingRegister( Integer slaveId, Integer address ) { |
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byte[] cmd = new byte[8]; |
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cmd[0] = (byte)(slaveId & 0xFF); // slave id |
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cmd[1] = 0x03; // function code |
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cmd[2] = (byte)(address >> 8); // address high |
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cmd[3] = (byte)(address & 0xFF); // address low |
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cmd[4] = 0x00; // value high |
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cmd[5] = 0x01; // value low |
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var response = this.call(cmd); |
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return response.get(3) << 8 | response.get(4); |
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} |
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|
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// call |
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private List<Integer> call(byte[] cmd) { |
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if ( this.isBusy ) { |
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synchronized ( this ) { |
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try { |
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this.wait(); |
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} catch (InterruptedException e) { |
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throw new RuntimeException(e); |
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} |
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} |
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} |
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|
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this.isBusy = true; |
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this.writeCmd(cmd); |
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List<Integer> response = this.readCmdResponse(); |
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this.isBusy = false; |
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synchronized ( this ) { |
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this.notify(); |
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} |
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return response; |
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} |
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|
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// write command |
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private void writeCmd(byte[] cmd) { |
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var size = cmd.length; |
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var crc = this.calculateCRC(cmd, size - 2); |
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cmd[size-2] = (byte)(crc & 0xFF); |
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cmd[size-1] = (byte)(crc >> 8); |
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|
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try { |
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this.writer.write(cmd); |
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this.writer.flush(); |
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} catch (IOException e) { |
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throw new RuntimeException(e); |
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} |
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|
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try { |
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Thread.sleep(300); |
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} catch (InterruptedException e) { |
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throw new RuntimeException(e); |
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} |
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} |
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|
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// read command response |
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private List<Integer> readCmdResponse ( ) { |
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try { |
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List<Integer> result = new ArrayList<>(); |
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while ( 0 < this.reader.available() ) { |
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result.add(this.reader.read()); |
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} |
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return result; |
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} catch (IOException e) { |
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throw new RuntimeException(e); |
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} |
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} |
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|
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/** |
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* 计算输入数据的CRC16 (Modbus) |
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* @param data 要计算CRC的字节数组 |
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* @param length 数组中需要计算的长度 |
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* @return 计算出的CRC16值 |
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*/ |
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public int calculateCRC(byte[] data, int length) { |
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int crc = 0xFFFF; // CRC的初始值 |
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|
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for (int pos = 0; pos < length; pos++) { |
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crc ^= data[pos] & 0xFF; // 将数据与CRC寄存器异或 |
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for (int i = 8; i != 0; i--) { // 循环处理每个位 |
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if ((crc & 0x0001) != 0) { |
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crc >>= 1; |
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crc ^= 0xA001; // 0xA001是预设的多项式 |
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} else { |
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crc >>= 1; |
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} |
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} |
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} |
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|
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// 高低位不交换，直接返回 |
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return crc & 0xFFFF; |
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} |
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} |
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