[4143] added opc hint

ui-ngx/src/app/modules/home/components/widget/lib/gateway/connectors-configuration/rpc-parameters/opc-rpc-parameters/opc-rpc-parameters.component.html

@@ -16,6 +16,9 @@
 
 -->
 <ng-container [formGroup]="rpcParametersFormGroup">
+  <div class="tb-form-hint tb-primary-fill tb-flex no-padding-top hint-container">
+    {{ 'gateway.rpc.hint.opc-method' | translate }}
+  </div>
   <mat-form-field class="tb-flex">
     <mat-label>{{ 'gateway.rpc.method' | translate }}</mat-label>
     <input matInput formControlName="method" placeholder="multiply"/>

ui-ngx/src/app/modules/home/components/widget/lib/gateway/connectors-configuration/rpc-parameters/opc-rpc-parameters/opc-rpc-parameters.component.scss

@@ -25,4 +25,8 @@
   .value-container {
     width: 50%;
   }
+
+  .hint-container {
+    margin-bottom: 12px;
+  }
 }

ui-ngx/src/assets/locale/locale.constant-en_US.json

@@ -3187,7 +3187,8 @@
             "header-name": "Header name",
             "hint": {
                 "modbus-response-reading": "RPC response will return all subtracted values from all connected devices when the reading functions are selected.",
-                "modbus-writing-functions": "RPC will write a filled value to all connected devices when the writing functions are selected."
+                "modbus-writing-functions": "RPC will write a filled value to all connected devices when the writing functions are selected.",
+                "opc-method": "A filled method name is the OPC-UA method that will processed on the server side (make sure your node has the requested method)."
             },
             "security-name": "Security name",
             "value": "Value",