Transaction id overrun.

janiversen · janiversen · commit a5d53327e9df · 2024-06-18T19:08:22.000+02:00
diff --git a/pymodbus/transaction.py b/pymodbus/transaction.py
@@ -480,7 +480,10 @@ def getNextTID(self):
 
         :returns: The next unique transaction identifier
         """
-        self.tid = (self.tid + 1) & 0xFFFF
+        if self.tid < 65000:
+            self.tid += 1
+        else:
+            self.tid = 1
         return self.tid
 
     def reset(self):
