添加重量输入以及改变线体号

.idea/gradle.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>

.idea/misc.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
   <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">

app/src/main/java/com/example/pdaplccontrol/BagNumberSender.java

@@ -1,9 +0,0 @@
-package com.example.pdaplccontrol;
-
-public interface BagNumberSender {
-
-    /**
-     * 发送袋号命令；抽出接口是为了让业务链路测试不依赖真实 PLC。
-     */
-    void sendBagNumber(short bagNumber) throws PlcCommunicationException;
-}

app/src/main/java/com/example/pdaplccontrol/MainActivity.java

@@ -1,72 +1,111 @@
 package com.example.pdaplccontrol;
 
 import android.os.Bundle;
+import android.view.KeyEvent;
 import android.view.View;
+import android.view.inputmethod.EditorInfo;
 import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
 import android.widget.Toast;
 
 import androidx.appcompat.app.AppCompatActivity;
 
 public class MainActivity extends AppCompatActivity implements View.OnClickListener {
 
-    private Button[] buttons = new Button[9];
+    private final Button[] lineButtons = new Button[9];
+    private EditText editWeightKg;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-        // 初始化 9 个按钮
+        editWeightKg = findViewById(R.id.editWeightKg);
-        buttons[0] = findViewById(R.id.btnBag1);
+        setupWeightInput();
-        buttons[1] = findViewById(R.id.btnBag2);
+        setupLineButtons();
-        buttons[2] = findViewById(R.id.btnBag3);
+    }
-        buttons[3] = findViewById(R.id.btnBag4);
-        buttons[4] = findViewById(R.id.btnBag5);
-        buttons[5] = findViewById(R.id.btnBag6);
-        buttons[6] = findViewById(R.id.btnBag7);
-        buttons[7] = findViewById(R.id.btnBag8);
-        buttons[8] = findViewById(R.id.btnBag9);
 
-        // 绑定点击事件，并设置 Tag 为袋子编号 (1-9)
+    private void setupWeightInput() {
-        for (int i = 0; i < buttons.length; i++) {
+        editWeightKg.setOnEditorActionListener(new TextView.OnEditorActionListener() {
-            buttons[i].setTag((short) (i + 1));
+            @Override
-            buttons[i].setOnClickListener(this);
+            public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
+                boolean isDone = actionId == EditorInfo.IME_ACTION_DONE
+                        || (event != null
+                        && event.getAction() == KeyEvent.ACTION_UP
+                        && event.getKeyCode() == KeyEvent.KEYCODE_ENTER);
+                if (isDone) {
+                    sendWeight();
+                    return true;
+                }
+                return false;
+            }
+        });
+    }
+
+    private void setupLineButtons() {
+        lineButtons[0] = findViewById(R.id.btnLine10);
+        lineButtons[1] = findViewById(R.id.btnLine11);
+        lineButtons[2] = findViewById(R.id.btnLine12);
+        lineButtons[3] = findViewById(R.id.btnLine13);
+        lineButtons[4] = findViewById(R.id.btnLine14);
+        lineButtons[5] = findViewById(R.id.btnLine15);
+        lineButtons[6] = findViewById(R.id.btnLine16);
+        lineButtons[7] = findViewById(R.id.btnLine17);
+        lineButtons[8] = findViewById(R.id.btnLine18);
+
+        for (int i = 0; i < lineButtons.length; i++) {
+            lineButtons[i].setTag((short) (PlcConfig.MIN_LINE_NUMBER + i));
+            lineButtons[i].setOnClickListener(this);
         }
     }
 
     @Override
     public void onClick(View v) {
         if (v instanceof Button) {
-            short bagNumber = (short) v.getTag();
+            short lineNumber = (short) v.getTag();
 
-            // 防抖设计：点击后立即禁用所有按钮，防止重复提交
+            setControlsEnabled(false);
-            setButtonsEnabled(false);
+            Toast.makeText(this, "正在向 PLC 发送线体号 " + lineNumber + "...", Toast.LENGTH_SHORT).show();
-            Toast.makeText(this, "正在向 PLC 发送 " + bagNumber + " 号袋...", Toast.LENGTH_SHORT).show();
 
-            // 异步下发到 PLC
+            PlcManager.getInstance().sendLineNumberAsync(lineNumber, createCallback());
-            PlcManager.getInstance().sendBagNumberAsync(bagNumber, new PlcManager.PlcCallback() {
-                @Override
-                public void onSuccess(String message) {
-                    Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
-                    // 恢复按钮状态
-                    setButtonsEnabled(true);
-                }
-
-                @Override
-                public void onError(String error) {
-                    Toast.makeText(MainActivity.this, error, Toast.LENGTH_LONG).show();
-                    // 恢复按钮状态
-                    setButtonsEnabled(true);
-                }
-            });
         }
     }
 
-    /**
+    private void sendWeight() {
-     * 设置所有按钮的可用状态
+        final short weightGrams;
-     */
+        try {
-    private void setButtonsEnabled(boolean enabled) {
+            weightGrams = WeightInputParser.kgToGrams(editWeightKg.getText().toString());
-        for (Button btn : buttons) {
+        } catch (IllegalArgumentException e) {
+            Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
+            return;
+        }
+
+        setControlsEnabled(false);
+        Toast.makeText(this, "正在向 PLC 发送重量 " + weightGrams + "g...", Toast.LENGTH_SHORT).show();
+
+        PlcManager.getInstance().sendWeightGramsAsync(weightGrams, createCallback());
+    }
+
+    private PlcManager.PlcCallback createCallback() {
+        return new PlcManager.PlcCallback() {
+            @Override
+            public void onSuccess(String message) {
+                Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show();
+                setControlsEnabled(true);
+            }
+
+            @Override
+            public void onError(String error) {
+                Toast.makeText(MainActivity.this, error, Toast.LENGTH_LONG).show();
+                setControlsEnabled(true);
+            }
+        };
+    }
+
+    private void setControlsEnabled(boolean enabled) {
+        editWeightKg.setEnabled(enabled);
+        for (Button btn : lineButtons) {
             if (btn != null) {
                 btn.setEnabled(enabled);
             }

app/src/main/java/com/example/pdaplccontrol/Moka7PlcValueSender.java

@@ -3,10 +3,19 @@ package com.example.pdaplccontrol;
 import Moka7.S7;
 import Moka7.S7Client;
 
-class Moka7BagNumberSender implements BagNumberSender {
+class Moka7PlcValueSender implements PlcValueSender {
 
     @Override
-    public void sendBagNumber(short bagNumber) throws PlcCommunicationException {
+    public void sendLineNumber(short lineNumber) throws PlcCommunicationException {
+        writeWord(PlcConfig.LINE_NUMBER_OFFSET, lineNumber);
+    }
+
+    @Override
+    public void sendWeightGrams(short weightGrams) throws PlcCommunicationException {
+        writeWord(PlcConfig.WEIGHT_GRAMS_OFFSET, weightGrams);
+    }
+
+    private void writeWord(int offset, short value) throws PlcCommunicationException {
         S7Client client = new S7Client();
         try {
             client.SetConnectionType(S7.OP);
@@ -15,14 +24,12 @@ class Moka7BagNumberSender implements BagNumberSender {
                 throw new PlcCommunicationException("PLC连接失败，错误码：" + connectRes);
             }
 
-            byte[] data = encodeBagNumber(bagNumber);
-
             int writeRes = client.WriteArea(
                     S7.S7AreaDB,
                     PlcConfig.DB_NUMBER,
-                    PlcConfig.OFFSET,
+                    offset,
-                    PlcConfig.BAG_NUMBER_BYTE_LENGTH,
+                    PlcConfig.WORD_BYTE_LENGTH,
-                    data
+                    encodeWord(value)
             );
             if (writeRes != 0) {
                 throw new PlcCommunicationException("写入数据失败，错误码：" + S7Client.ErrorText(writeRes));
@@ -36,10 +43,10 @@ class Moka7BagNumberSender implements BagNumberSender {
         }
     }
 
-    static byte[] encodeBagNumber(short bagNumber) {
+    static byte[] encodeWord(short value) {
-        byte[] data = new byte[PlcConfig.BAG_NUMBER_BYTE_LENGTH];
+        byte[] data = new byte[PlcConfig.WORD_BYTE_LENGTH];
-        // PLC 的 INT 为 2 字节，按 S7 大端格式写入，保证与 DB 中的整型变量匹配。
+        // S7 的 Word/Int 都是 2 字节大端格式；当前值范围都在正数区间内。
-        S7.SetShortAt(data, 0, bagNumber);
+        S7.SetShortAt(data, 0, value);
         return data;
     }
 }

app/src/main/java/com/example/pdaplccontrol/PlcConfig.java

@@ -2,13 +2,18 @@ package com.example.pdaplccontrol;
 
 final class PlcConfig {
 
-    // TODO: 参数修改，避免 PLC 地址散落在业务代码里。
+    // 参数集中放置，现场地址变化时只改这里。
-    static final String PLC_IP = "192.168.0.1";
+    static final String PLC_IP = "192.168.11.1";
     static final int RACK = 0;
     static final int SLOT = 1;
-    static final int DB_NUMBER = 1;
+    static final int DB_NUMBER = 49;
-    static final int OFFSET = 0;
+    static final int LINE_NUMBER_OFFSET = 32;
-    static final int BAG_NUMBER_BYTE_LENGTH = 2;
+    static final int WEIGHT_GRAMS_OFFSET = 34;
+    static final int WORD_BYTE_LENGTH = 2;
+    static final int MIN_LINE_NUMBER = 10;
+    static final int MAX_LINE_NUMBER = 18;
+    static final int MIN_WEIGHT_GRAMS = 0;
+    static final int MAX_WEIGHT_GRAMS = 30000;
 
     private PlcConfig() {
     }

app/src/main/java/com/example/pdaplccontrol/PlcManager.java

@@ -9,18 +9,16 @@ import java.util.concurrent.Executors;
 public class PlcManager {
 
     private static PlcManager instance;
-    private static final int MIN_BAG_NUMBER = 1;
+    private final PlcValueSender plcValueSender;
-    private static final int MAX_BAG_NUMBER = 9;
-    private final BagNumberSender bagNumberSender;
     private final Executor commandExecutor;
     private final Executor callbackExecutor;
 
     private PlcManager() {
-        this(new Moka7BagNumberSender(), Executors.newSingleThreadExecutor(), new MainThreadExecutor());
+        this(new Moka7PlcValueSender(), Executors.newSingleThreadExecutor(), new MainThreadExecutor());
     }
 
-    PlcManager(BagNumberSender bagNumberSender, Executor commandExecutor, Executor callbackExecutor) {
+    PlcManager(PlcValueSender plcValueSender, Executor commandExecutor, Executor callbackExecutor) {
-        this.bagNumberSender = bagNumberSender;
+        this.plcValueSender = plcValueSender;
         this.commandExecutor = commandExecutor;
         this.callbackExecutor = callbackExecutor;
     }
@@ -37,14 +35,9 @@ public class PlcManager {
         void onError(String error);
     }
 
-    /**
+    public void sendLineNumberAsync(final short lineNumber, final PlcCallback callback) {
-     * 异步发送袋子编号给 PLC
+        if (!isValidLineNumber(lineNumber)) {
-     * @param bagNumber 袋子编号 (1-9)
+            notifyError(callback, "线体号无效，只允许 10-18");
-     * @param callback 回调接口
-     */
-    public void sendBagNumberAsync(final short bagNumber, final PlcCallback callback) {
-        if (!isValidBagNumber(bagNumber)) {
-            notifyError(callback, "袋子编号无效，只允许 1-9");
             return;
         }
 
@@ -52,8 +45,8 @@ public class PlcManager {
             @Override
             public void run() {
                 try {
-                    bagNumberSender.sendBagNumber(bagNumber);
+                    plcValueSender.sendLineNumber(lineNumber);
-                    notifySuccess(callback, "成功下发袋子编号: " + bagNumber);
+                    notifySuccess(callback, "成功下发线体号: " + lineNumber);
                 } catch (PlcCommunicationException e) {
                     notifyError(callback, e.getMessage());
                 }
@@ -61,8 +54,31 @@ public class PlcManager {
         });
     }
 
-    static boolean isValidBagNumber(short bagNumber) {
+    public void sendWeightGramsAsync(final short weightGrams, final PlcCallback callback) {
-        return bagNumber >= MIN_BAG_NUMBER && bagNumber <= MAX_BAG_NUMBER;
+        if (!isValidWeightGrams(weightGrams)) {
+            notifyError(callback, "重量范围为 0-30kg");
+            return;
+        }
+
+        commandExecutor.execute(new Runnable() {
+            @Override
+            public void run() {
+                try {
+                    plcValueSender.sendWeightGrams(weightGrams);
+                    notifySuccess(callback, "成功下发重量: " + weightGrams + "g");
+                } catch (PlcCommunicationException e) {
+                    notifyError(callback, e.getMessage());
+                }
+            }
+        });
+    }
+
+    static boolean isValidLineNumber(short lineNumber) {
+        return lineNumber >= PlcConfig.MIN_LINE_NUMBER && lineNumber <= PlcConfig.MAX_LINE_NUMBER;
+    }
+
+    static boolean isValidWeightGrams(short weightGrams) {
+        return weightGrams >= PlcConfig.MIN_WEIGHT_GRAMS && weightGrams <= PlcConfig.MAX_WEIGHT_GRAMS;
     }
 
     private void notifySuccess(final PlcCallback callback, final String message) {

app/src/main/java/com/example/pdaplccontrol/PlcValueSender.java

@@ -0,0 +1,14 @@
+package com.example.pdaplccontrol;
+
+public interface PlcValueSender {
+
+    /**
+     * 只在用户选择线体时写一次，避免持续写入覆盖触摸屏侧操作。
+     */
+    void sendLineNumber(short lineNumber) throws PlcCommunicationException;
+
+    /**
+     * 只在用户完成重量输入时写一次；PLC 侧按克整数保存重量。
+     */
+    void sendWeightGrams(short weightGrams) throws PlcCommunicationException;
+}

app/src/main/java/com/example/pdaplccontrol/WeightInputParser.java

@@ -0,0 +1,36 @@
+package com.example.pdaplccontrol;
+
+import java.math.BigDecimal;
+
+final class WeightInputParser {
+
+    private static final BigDecimal GRAMS_PER_KG = new BigDecimal("1000");
+
+    private WeightInputParser() {
+    }
+
+    static short kgToGrams(String input) {
+        if (input == null || input.trim().isEmpty()) {
+            throw new IllegalArgumentException("请输入重量");
+        }
+
+        BigDecimal kg;
+        try {
+            kg = new BigDecimal(input.trim());
+        } catch (NumberFormatException e) {
+            throw new IllegalArgumentException("重量格式不正确");
+        }
+
+        BigDecimal grams = kg.movePointRight(3).stripTrailingZeros();
+        if (kg.compareTo(BigDecimal.ZERO) < 0
+                || grams.compareTo(BigDecimal.valueOf(PlcConfig.MAX_WEIGHT_GRAMS)) > 0) {
+            throw new IllegalArgumentException("重量范围为 0-30kg");
+        }
+
+        try {
+            return grams.shortValueExact();
+        } catch (ArithmeticException e) {
+            throw new IllegalArgumentException("重量最多精确到 0.001kg");
+        }
+    }
+}

app/src/main/res/layout/activity_main.xml

@@ -2,17 +2,36 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical"
     android:gravity="center"
+    android:orientation="vertical"
     android:padding="16dp">
 
+    <TextView
+        android:layout_width="220dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:text="重量(kg)"
+        android:textSize="24sp"
+        android:textStyle="bold"
+        android:layout_marginBottom="8dp" />
+
+    <EditText
+        android:id="@+id/editWeightKg"
+        android:layout_width="220dp"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="24dp"
+        android:hint="0.000"
+        android:imeOptions="actionDone"
+        android:inputType="numberDecimal"
+        android:singleLine="true"
+        android:textSize="20sp" />
+
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="请选择要使用的袋子"
+        android:layout_marginBottom="8dp"
-        android:textSize="24sp"
+        android:text="请选择线体号"
-        android:textStyle="bold"
+        android:textSize="18sp" />
-        android:layout_marginBottom="32dp"/>
 
     <GridLayout
         android:id="@+id/gridLayout"
@@ -21,15 +40,77 @@
         android:columnCount="3"
         android:rowCount="3">
 
-        <Button android:id="@+id/btnBag1" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="1号" android:textSize="20sp"/>
+        <Button
-        <Button android:id="@+id/btnBag2" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="2号" android:textSize="20sp"/>
+            android:id="@+id/btnLine10"
-        <Button android:id="@+id/btnBag3" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="3号" android:textSize="20sp"/>
+            android:layout_width="80dp"
-        <Button android:id="@+id/btnBag4" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="4号" android:textSize="20sp"/>
+            android:layout_height="80dp"
-        <Button android:id="@+id/btnBag5" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="5号" android:textSize="20sp"/>
+            android:layout_margin="8dp"
-        <Button android:id="@+id/btnBag6" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="6号" android:textSize="20sp"/>
+            android:text="10号"
-        <Button android:id="@+id/btnBag7" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="7号" android:textSize="20sp"/>
+            android:textSize="20sp" />
-        <Button android:id="@+id/btnBag8" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="8号" android:textSize="20sp"/>
+
-        <Button android:id="@+id/btnBag9" android:layout_width="80dp" android:layout_height="80dp" android:layout_margin="8dp" android:text="9号" android:textSize="20sp"/>
+        <Button
+            android:id="@+id/btnLine11"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="11号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine12"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="12号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine13"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="13号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine14"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="14号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine15"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="15号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine16"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="16号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine17"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="17号"
+            android:textSize="20sp" />
+
+        <Button
+            android:id="@+id/btnLine18"
+            android:layout_width="80dp"
+            android:layout_height="80dp"
+            android:layout_margin="8dp"
+            android:text="18号"
+            android:textSize="20sp" />
 
     </GridLayout>
 

app/src/test/java/com/example/pdaplccontrol/ExampleUnitTest.java

@@ -4,28 +4,44 @@ import org.junit.Test;
 
 import static org.junit.Assert.*;
 
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
 public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() {
-        assertEquals(4, 2 + 2);
-    }
 
     @Test
-    public void isValidBagNumber_acceptsOneToNine() {
+    public void isValidLineNumber_acceptsTenToEighteen() {
-        for (short bagNumber = 1; bagNumber <= 9; bagNumber++) {
+        for (short lineNumber = 10; lineNumber <= 18; lineNumber++) {
-            assertTrue(PlcManager.isValidBagNumber(bagNumber));
+            assertTrue(PlcManager.isValidLineNumber(lineNumber));
         }
     }
 
     @Test
-    public void isValidBagNumber_rejectsOutOfRange() {
+    public void isValidLineNumber_rejectsOutOfRange() {
-        assertFalse(PlcManager.isValidBagNumber((short) 0));
+        assertFalse(PlcManager.isValidLineNumber((short) 9));
-        assertFalse(PlcManager.isValidBagNumber((short) 10));
+        assertFalse(PlcManager.isValidLineNumber((short) 19));
-        assertFalse(PlcManager.isValidBagNumber((short) -1));
+    }
+
+    @Test
+    public void kgToGrams_acceptsZeroToThirtyKgWithGramPrecision() {
+        assertEquals(0, WeightInputParser.kgToGrams("0"));
+        assertEquals(1000, WeightInputParser.kgToGrams("1"));
+        assertEquals(12345, WeightInputParser.kgToGrams("12.345"));
+        assertEquals(30000, WeightInputParser.kgToGrams("30"));
+    }
+
+    @Test
+    public void kgToGrams_rejectsInvalidInput() {
+        assertInvalidWeight("");
+        assertInvalidWeight("abc");
+        assertInvalidWeight("-0.001");
+        assertInvalidWeight("30.001");
+        assertInvalidWeight("1.2345");
+    }
+
+    private void assertInvalidWeight(String input) {
+        try {
+            WeightInputParser.kgToGrams(input);
+            fail("Expected invalid weight for input: " + input);
+        } catch (IllegalArgumentException expected) {
+            // 测试只关心非法输入会被拦截，具体提示由业务层统一维护。
+        }
     }
 }

app/src/test/java/com/example/pdaplccontrol/Moka7BagNumberSenderTest.java

@@ -1,19 +0,0 @@
-package com.example.pdaplccontrol;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-public class Moka7BagNumberSenderTest {
-
-    @Test
-    public void encodeBagNumber_oneToNine_usesS7IntBigEndianBytes() {
-        for (short bagNumber = 1; bagNumber <= 9; bagNumber++) {
-            byte[] data = Moka7BagNumberSender.encodeBagNumber(bagNumber);
-
-            assertEquals(PlcConfig.BAG_NUMBER_BYTE_LENGTH, data.length);
-            assertEquals(0, data[0]);
-            assertEquals(bagNumber, data[1]);
-        }
-    }
-}

app/src/test/java/com/example/pdaplccontrol/Moka7PlcValueSenderTest.java

@@ -0,0 +1,22 @@
+package com.example.pdaplccontrol;
+
+import Moka7.S7;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+public class Moka7PlcValueSenderTest {
+
+    @Test
+    public void encodeWord_validPositiveValues_usesS7BigEndianBytes() {
+        short[] values = new short[] {10, 18, 0, 12345, 30000};
+
+        for (short value : values) {
+            byte[] data = Moka7PlcValueSender.encodeWord(value);
+
+            assertEquals(PlcConfig.WORD_BYTE_LENGTH, data.length);
+            assertEquals(value, (short) S7.GetShortAt(data, 0));
+        }
+    }
+}

app/src/test/java/com/example/pdaplccontrol/PlcManagerTest.java

@@ -9,32 +9,62 @@ import static org.junit.Assert.*;
 public class PlcManagerTest {
 
     @Test
-    public void sendBagNumberAsync_oneToNine_delegatesExactBagNumber() {
+    public void sendLineNumberAsync_tenToEighteen_delegatesExactLineNumber() {
-        for (short bagNumber = 1; bagNumber <= 9; bagNumber++) {
+        for (short lineNumber = 10; lineNumber <= 18; lineNumber++) {
-            RecordingBagNumberSender sender = new RecordingBagNumberSender();
+            RecordingPlcValueSender sender = new RecordingPlcValueSender();
             RecordingCallback callback = new RecordingCallback();
             PlcManager manager = new PlcManager(sender, new DirectExecutor(), new DirectExecutor());
 
-            manager.sendBagNumberAsync(bagNumber, callback);
+            manager.sendLineNumberAsync(lineNumber, callback);
 
-            assertTrue(sender.called);
+            assertNotNull(sender.lineNumber);
-            assertEquals(bagNumber, sender.bagNumber);
+            assertEquals((int) lineNumber, (int) sender.lineNumber);
-            assertEquals("成功下发袋子编号: " + bagNumber, callback.successMessage);
+            assertNull(sender.weightGrams);
+            assertEquals("成功下发线体号: " + lineNumber, callback.successMessage);
             assertNull(callback.errorMessage);
         }
     }
 
     @Test
-    public void sendBagNumberAsync_invalidNumber_doesNotCallSender() {
+    public void sendLineNumberAsync_invalidNumber_doesNotCallSender() {
-        RecordingBagNumberSender sender = new RecordingBagNumberSender();
+        RecordingPlcValueSender sender = new RecordingPlcValueSender();
         RecordingCallback callback = new RecordingCallback();
         PlcManager manager = new PlcManager(sender, new DirectExecutor(), new DirectExecutor());
 
-        manager.sendBagNumberAsync((short) 10, callback);
+        manager.sendLineNumberAsync((short) 9, callback);
 
-        assertFalse(sender.called);
+        assertNull(sender.lineNumber);
+        assertNull(sender.weightGrams);
         assertNull(callback.successMessage);
-        assertEquals("袋子编号无效，只允许 1-9", callback.errorMessage);
+        assertEquals("线体号无效，只允许 10-18", callback.errorMessage);
+    }
+
+    @Test
+    public void sendWeightGramsAsync_validWeight_delegatesExactGrams() {
+        RecordingPlcValueSender sender = new RecordingPlcValueSender();
+        RecordingCallback callback = new RecordingCallback();
+        PlcManager manager = new PlcManager(sender, new DirectExecutor(), new DirectExecutor());
+
+        manager.sendWeightGramsAsync((short) 12345, callback);
+
+        assertNull(sender.lineNumber);
+        assertEquals(12345, (int) sender.weightGrams);
+        assertEquals("成功下发重量: 12345g", callback.successMessage);
+        assertNull(callback.errorMessage);
+    }
+
+    @Test
+    public void sendWeightGramsAsync_invalidWeight_doesNotCallSender() {
+        RecordingPlcValueSender sender = new RecordingPlcValueSender();
+        RecordingCallback callback = new RecordingCallback();
+        PlcManager manager = new PlcManager(sender, new DirectExecutor(), new DirectExecutor());
+
+        manager.sendWeightGramsAsync((short) -1, callback);
+
+        assertNull(sender.lineNumber);
+        assertNull(sender.weightGrams);
+        assertNull(callback.successMessage);
+        assertEquals("重量范围为 0-30kg", callback.errorMessage);
     }
 
     private static class DirectExecutor implements Executor {
@@ -44,14 +74,18 @@ public class PlcManagerTest {
         }
     }
 
-    private static class RecordingBagNumberSender implements BagNumberSender {
+    private static class RecordingPlcValueSender implements PlcValueSender {
-        private boolean called;
+        private Short lineNumber;
-        private short bagNumber;
+        private Short weightGrams;
 
         @Override
-        public void sendBagNumber(short bagNumber) {
+        public void sendLineNumber(short lineNumber) {
-            this.called = true;
+            this.lineNumber = lineNumber;
-            this.bagNumber = bagNumber;
+        }
+
+        @Override
+        public void sendWeightGrams(short weightGrams) {
+            this.weightGrams = weightGrams;
         }
     }