diff --git a/Step/Controllers/WebApi/LanguageController.cs b/Step/Controllers/WebApi/LanguageController.cs
index 7623faaf..8ae68c1b 100644
--- a/Step/Controllers/WebApi/LanguageController.cs
+++ b/Step/Controllers/WebApi/LanguageController.cs
@@ -89,8 +89,9 @@ namespace Step.Controllers.WebApi
                 Dictionary<int, string> messages = new Dictionary<int, string>();
                 // Read data from CN
                 cmsError = ncHandler.numericalControl.NC_GetTranslatedPlcMessages(language, ref messages);
-
-                for(int i = 0; i < 1024; i++)
+                
+                // Id start from 1
+                for(int i = 1; i <= 1024; i++)
                 {
                     // Get configurated alarms
                     var tmpAlarmConfig = InitialAlarmsConfig.Where(x => x.PlcId == i).FirstOrDefault();