diff --git a/dc3-driver/dc3-driver-fins/src/main/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImpl.java b/dc3-driver/dc3-driver-fins/src/main/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImpl.java
index f915e463a..678ef0c14 100644
--- a/dc3-driver/dc3-driver-fins/src/main/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImpl.java
+++ b/dc3-driver/dc3-driver-fins/src/main/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImpl.java
@@ -164,7 +164,7 @@ public class FinsDriverCustomServiceImpl implements DriverCustomService {
 
         try {
             byte areaCode = resolveMemoryAreaCode(memoryArea);
-            byte[] finsFrame = buildMemoryReadFrame(driverConfig, areaCode, address, 1);
+            byte[] finsFrame = buildMemoryReadFrame(driverConfig, areaCode, address, wordCount(dataType));
             byte[] response = sendFinsCommand(socket, finsFrame);
 
             String value = parseReadResponse(response, dataType);
@@ -402,7 +402,7 @@ public class FinsDriverCustomServiceImpl implements DriverCustomService {
      * @param dataType data type identifier
      * @return decoded value string
      */
-    private String decodeValue(byte[] data, String dataType) {
+    String decodeValue(byte[] data, String dataType) {
         return switch (dataType.toUpperCase()) {
             case "INT16" -> String.valueOf(ByteBuffer.wrap(data).order(ByteOrder.BIG_ENDIAN).getShort());
             case "UINT16" ->
@@ -417,6 +417,20 @@ public class FinsDriverCustomServiceImpl implements DriverCustomService {
         };
     }
 
+    /**
+     * Resolve the FINS memory read length in words (2 bytes each) for a data type.
+     * 32-bit types (INT32/UINT32/FLOAT) span 2 words; all others read a single word.
+     *
+     * @param dataType data type identifier
+     * @return word count to request
+     */
+    int wordCount(String dataType) {
+        return switch (dataType.toUpperCase()) {
+            case "INT32", "UINT32", "FLOAT" -> 2;
+            default -> 1;
+        };
+    }
+
     /**
      * Encode a string value to bytes for FINS write operations.
      *
@@ -424,7 +438,7 @@ public class FinsDriverCustomServiceImpl implements DriverCustomService {
      * @param dataType data type identifier
      * @return encoded bytes
      */
-    private byte[] encodeWriteData(String value, String dataType) {
+    byte[] encodeWriteData(String value, String dataType) {
         byte[] data;
         switch (dataType.toUpperCase()) {
             case "INT16":
@@ -435,13 +449,18 @@ public class FinsDriverCustomServiceImpl implements DriverCustomService {
                 break;
             }
             case "INT32":
-            case "UINT32":
-            case "FLOAT": {
+            case "UINT32": {
                 data = new byte[4];
                 int i = Integer.parseInt(value);
                 ByteBuffer.wrap(data).order(ByteOrder.BIG_ENDIAN).putInt(i);
                 break;
             }
+            case "FLOAT": {
+                data = new byte[4];
+                float f = Float.parseFloat(value);
+                ByteBuffer.wrap(data).order(ByteOrder.BIG_ENDIAN).putFloat(f);
+                break;
+            }
             case "STRING": {
                 data = value.getBytes();
                 break;
diff --git a/dc3-driver/dc3-driver-fins/src/test/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImplTest.java b/dc3-driver/dc3-driver-fins/src/test/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImplTest.java
index 5cf4fcc59..b427a9b79 100644
--- a/dc3-driver/dc3-driver-fins/src/test/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImplTest.java
+++ b/dc3-driver/dc3-driver-fins/src/test/java/io/github/pnoker/driver/service/impl/FinsDriverCustomServiceImplTest.java
@@ -91,4 +91,31 @@ class FinsDriverCustomServiceImplTest {
         assertThatNoException().isThrownBy(() -> service.schedule());
     }
 
+    @Test
+    void wordCountIsTwoFor32BitTypesAndOneOtherwise() {
+        assertThat(service.wordCount("INT32")).isEqualTo(2);
+        assertThat(service.wordCount("UINT32")).isEqualTo(2);
+        assertThat(service.wordCount("FLOAT")).isEqualTo(2);
+        assertThat(service.wordCount("float")).isEqualTo(2);
+        assertThat(service.wordCount("INT16")).isEqualTo(1);
+        assertThat(service.wordCount("UINT16")).isEqualTo(1);
+        assertThat(service.wordCount("STRING")).isEqualTo(1);
+    }
+
+    @Test
+    void floatEncodeDecodeRoundTrips() {
+        byte[] encoded = service.encodeWriteData("3.14", "FLOAT");
+
+        assertThat(encoded).hasSize(4);
+        assertThat(Float.parseFloat(service.decodeValue(encoded, "FLOAT"))).isEqualTo(3.14f);
+    }
+
+    @Test
+    void int32EncodeDecodeRoundTrips() {
+        byte[] encoded = service.encodeWriteData("70000", "INT32");
+
+        assertThat(encoded).hasSize(4);
+        assertThat(service.decodeValue(encoded, "INT32")).isEqualTo("70000");
+    }
+
 }