From 47774fb644a162c5e38941a1b392ab7374aecb2e Mon Sep 17 00:00:00 2001
From: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
Date: Fri, 27 Mar 2026 19:55:57 -0400
Subject: [PATCH] [modbus_controller] Fix wrong enum in
 function_code_to_register (#15253)

---
 esphome/components/modbus_controller/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/esphome/components/modbus_controller/__init__.py b/esphome/components/modbus_controller/__init__.py
index dfc43bf23b..cb0969913a 100644
--- a/esphome/components/modbus_controller/__init__.py
+++ b/esphome/components/modbus_controller/__init__.py
@@ -362,7 +362,7 @@ async def register_modbus_device(var, config):
 def function_code_to_register(function_code):
     FUNCTION_CODE_TYPE_MAP = {
         "read_coils": ModbusRegisterType.COIL,
-        "read_discrete_inputs": ModbusRegisterType.DISCRETE,
+        "read_discrete_inputs": ModbusRegisterType.DISCRETE_INPUT,
         "read_holding_registers": ModbusRegisterType.HOLDING,
         "read_input_registers": ModbusRegisterType.READ,
         "write_single_coil": ModbusRegisterType.COIL,