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The Xentara Beckhoff ADS Driver v1.2
User Manual
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The Xentara Beckhoff ADS Driver v1.2
User Manual
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The ADS.Poll is a type of Xentara I/O Batch that groups multiple variables to be read and written together. The write and read operations take place by invoking the poll's read or write tasks. Also there is a timeout parameter that is used to configure the expected time duration for the tasks' execution to be finished. If a task's execution duration surpasses the timeout value, it will be treated as a connection error.
| id | A string value containing the ID of the ADS poll. The ID is used to construct the ADS poll’s primary key. |
| UUID | A string value containing the unique UUID of the ADS poll. |
| ACL | An optional JSON object containing the element ACL of the ADS poll. The format of the block is described here. |
| timout | A time period used to set a timeout on read and write operations managed by this poll. The current operation will be canceled, connection will be assumed down and the proper error message will be reported in case of timeout. |
| read | The read task. Variables belong to this poll will be read at this task's invocation. |
| write | The write task. Variables belong to this poll will be written (if there is a pending value) at this task's invocation. |