The SIMATIC S7 Connector now supports only payload version 1.5; older versions are not supported.
Any older versions imported into IEM are automatically converted to version 1.5.
The following table provides you the functionalities of Payload version 1.5:
| Functionality | Payload Version 1.5 |
|---|---|
| Metadata Payload for S7 Char array | Data type of individual element is published as 'Char' in tag metadata Payload. |
| Tag data Payload for S7 Char array | The individual child elements data is published separately. Any change in notifications of one child element results in publishing of only that child tag value. |
| Quality code in tag data Payload | Quality code with enum value {0,1,2, or 3} is published in tag data Payload. But along with qc, there is a new field qx which holds all the bits data: quality code, sub status, extended substatus, flag, and limit.
|
| Value in tag data Payload | Value is published as per the data type and not in 'String'. For more information, refer Data Types. |
| Value in tag data Payload for tag write feature in mqtt publisher node | Value is published as per the data type while making a 'write' request to SIMATIC S7 Connector. |
| Metadata Payload for all Tags | Along with name, id, and dataType, following fields are also be published : accessMode, acquisitionCycleInMs and acquisitionMode |