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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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en:mervis-scada:80-mqtt [2018/05/17 14:47] m.kulvejt |
en:mervis-scada:80-mqtt [2024/05/08 10:42] (current) |
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| ===== Basic properties and requirements ===== | ===== Basic properties and requirements ===== | ||
| - | * Any device must be registered in the Mervis cloud. Connection parameters are provided upon the registration (DeviceID, user name and password) | + | |
| + | | ||
| + | * Contact [[en: | ||
| * possibility of a dynamic variable set (devices can specify what variables they publish) | * possibility of a dynamic variable set (devices can specify what variables they publish) | ||
| * only built-in types are supported (bool, integers, floating point numbers, string) | * only built-in types are supported (bool, integers, floating point numbers, string) | ||
| Line 25: | Line 27: | ||
| ===== Supported formats ===== | ===== Supported formats ===== | ||
| - | ==== Wago inspired | + | ==== Wago compatible |
| === Registration of available variables === | === Registration of available variables === | ||
| Line 98: | Line 100: | ||
| * / | * / | ||
| * /TagData (Array of value items) | * /TagData (Array of value items) | ||
| - | * /Time (datetime), timestamp in ISO format, ideal is a UTC form | + | * /Time (datetime), timestamp in ISO format |
| * /Values (Collection of Tag and value tuples) | * /Values (Collection of Tag and value tuples) | ||
| **Example** | **Example** | ||
| + | <code json> | ||
| { | { | ||
| " | " | ||
| Line 116: | Line 119: | ||
| } | } | ||
| + | </ | ||
| + | ==== 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/ | ||
| + | * Payload: UTF-8 JSON document | ||
| + | * /d: root element | ||
| + | * " | ||
| + | * metadata format: | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | **Example** | ||
| + | <code json> | ||
| + | { | ||
| + | " | ||
| + | " | ||
| + | " | ||
| + | " | ||
| + | "My array" : [ 0, 10, 20 ] | ||
| + | }, | ||
| + | " | ||
| + | } | ||
| + | |||
| + | </ | ||
| + | {{ : | ||
| + | === Command registration === | ||
| + | * Topic: $deviceId/ | ||
| + | * Format: | ||
| + | * /d root element | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | < | ||
| + | { | ||
| + | " | ||
| + | " | ||
| + | }, | ||
| + | " | ||
| + | } | ||
| + | </ | ||
| + | choose/ | ||
| + | {{ : | ||
| + | set general tab by screenshot | ||
| + | {{ : | ||
| + | add commands | ||
| + | {{ : | ||
| + | ===Our supported types=== | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | * " | ||
| + | ===Create a subcribe topic for executing command=== | ||
| + | * for previous command example | ||
| + | * create topic $deviceId/ | ||
| + | * with two addresses: | ||
| + | * temperature(32-bit float) | ||
| + | * date(string) | ||
| + | {{ : | ||