Some integrations must not only read data, but also send setpoints or control commands to a device. The function write iot values() writes values to the specified node IDs of an IoT server.
IMPORTANT: This function writes values directly to the OPC UA server. Before using this in production, check whether the target node controls a running process or a physical device.
Parameters
Parameter | Type | Default value | Description |
|---|---|---|---|
a | String (alias) | – | IoT server alias. |
b | String (list name) | – | Name of the list with the node IDs to write. Separate multiple IDs with a comma. Example for a single value: ns=5;s=Int16DataItem. |
c | String (list name) | – | Name of the list with the values to write, in the same order as list b. Example for a single value: 77. |
d | Boolean | false | Optional. If true, the function rereads the values from list c after writing. This confirms the write operation. |