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--- en:mervis-scada:80-mqtt [2020/08/27 08:53]
l.osladil
+++ en:mervis-scada:80-mqtt [2024/05/08 10:42] (current)
@@ Line 121: / Line 121: @@
 </code>
 ==== Weintek compatible format ====
+  * We assume that all datetime values are in **UTC**
+  * Print screens are from EasyBuilder Pro SW
+=== Variable values ===
+  * Publishes values of variables
+  * Publish message with “At least once delivery”
+  * Topic: $deviceId/mervis/values or $deviceId/mervis/values/*
+  * Payload: UTF-8 JSON document
+    * /d: root element
+      * "property_name": value - property name, can contain metada(not required). Always use array [...] for value of property
+        * metadata format:
+          * "name" name of property
+          * "type" property type(we supported only [[https://kb.mervis.info/doku.php/en:mervis-scada:80-mqtt#our_supported_types|our list of types]])
+          * "unit" information about unit of value
+**Example**
+<code json>
+{
+    "d" : {
+        "name:MyHomeTemperature, type:generic_sint64, unit:°C" : [ 0 ],
+        "number C" : [ 0 ],
+        "Bit" : [ false ],
+        "My array" : [ 0, 10, 20 ]
+    },
+    "ts" : "2020-08-27T07:10:24.360316"
+}
+</code>
+{{ :en:mervis-scada:annotation_2020-08-27_120101.png?600 |}}
+=== Command registration ===
+  * Topic: $deviceId/mervis/cmd_reg or $deviceId/mervis/cmd_reg/*
+  * Format:
+    * /d root element
+      * "propertyName" must include some informations(separate by ","). Value is ignored.
+        * "id" what is command id and define subscribe topic ($deviceId/mervis/command/change_temperature)
+        * "name" just for customer info
+        * "params" parameters with informations to command (**must include all parameters of supscribe topic**)
+          * "name" parameter name in json
+          * "type" type of parameter (we supported only [[https://kb.mervis.info/doku.php/en:mervis-scada:80-mqtt#our_supported_types|our list of types]])
+          * "unit" information about unit of parameter
+        * "ts" time span
+<code>
+{
+    "d" : {
+        "id:change_temperature, name:change temperature in house ,params:[{name: temperature, type:generic_float64, unit:°C}, {name: date, type:generic_datetime, unit:UTC}]" : false
+    },
+    "ts" : "2020-08-27T07:10:11.356013"
+}
+</code>
+choose/create $deviceId/mervis/cmd_reg/
+{{ :en:mervis-scada:annotation_2020-08-27_110112.png?400 |}}
+set general tab by screenshot
+{{ :en:mervis-scada:annotation_2020-08-27_121338.png?400 |}}
+add commands
+{{ :en:mervis-scada:annotation_2020-08-27_115716.png?400 |}}
+===Our supported types===
+              * "generic_bool"
+              * "generic_sint8"
+              * "generic_uint8"
+              * "generic_sint16"
+              * "generic_uint16"
+              * "generic_sint32"
+              * "generic_uint32"
+              * "generic_sint64"
+              * "generic_uint64"
+              * "generic_float32"
+              * "generic_float64"
+              * "generic_string"
+              * "generic_datetime"
+===Create a subcribe topic for executing command===
+  * for previous command example
+  * create topic $deviceId/mervis/command/change_temperature
+  * with two addresses:
+    * temperature(32-bit float)
+    * date(string)
+{{ :en:mervis-scada:annotation_2020-08-27_110134.png?600 |}}