From 26736911f6b8a974ecab0e2d03f9fd61c7820787 Mon Sep 17 00:00:00 2001
From: Karim Malik <79924100+km-64@users.noreply.github.com>
Date: Wed, 1 Jul 2026 22:37:59 +0200
Subject: [PATCH] Fix swapped SimDevice constructor call in ModbusDeviceContext
 constructor

hr_simdata and ir_simdata should be swapped to match the documentation
in SimDevice for the simdevice attribute:

The tuple is defined as:
(<coils>, <discrete inputs>, <holding registers>, <input registers>)
---
 pymodbus/datastore/context.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pymodbus/datastore/context.py b/pymodbus/datastore/context.py
index 29a7e2bf3..404be01d8 100644
--- a/pymodbus/datastore/context.py
+++ b/pymodbus/datastore/context.py
@@ -60,7 +60,7 @@ def __init__(
         self.__build_data(co_simdata)
         self.__build_data(di_simdata)
         self.simdevice = SimDevice(
-            0, simdata=(co_simdata, di_simdata, ir_simdata, hr_simdata)
+            0, simdata=(co_simdata, di_simdata, hr_simdata, ir_simdata)
         )
         Log.warning(
             "ModbusDeviceContext, ModbusSequentialDataBlock, "