Fix modbus address size to support two digits
diff --git a/plc4j/protocols/modbus/src/main/java/org/apache/plc4x/java/modbus/model/ModbusField.java b/plc4j/protocols/modbus/src/main/java/org/apache/plc4x/java/modbus/model/ModbusField.java
index 3254e02..0d8933f 100644
--- a/plc4j/protocols/modbus/src/main/java/org/apache/plc4x/java/modbus/model/ModbusField.java
+++ b/plc4j/protocols/modbus/src/main/java/org/apache/plc4x/java/modbus/model/ModbusField.java
@@ -25,7 +25,7 @@
 
 public abstract class ModbusField implements PlcField {
 
-    public static final Pattern ADDRESS_PATTERN = Pattern.compile("(?<address>\\d+)(\\[(?<quantity>\\d)])?");
+    public static final Pattern ADDRESS_PATTERN = Pattern.compile("(?<address>\\d+)(\\[(?<quantity>\\d+)])?");
 
     private final int address;