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The Xentara Beckhoff ADS Driver v1.3
User Manual
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The 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.
| key | The Poll’s primary key. |
| name | The Poll’s name. The name is the last component of the primary key. |
| UUID | The unique UUID of the Poll. |
| type | The Poll’s element type. For ADS polls, this is always “ADS poll”. |
| category | The Poll’s category. For ADS polls, this is always “transaction”. |
| read | The read task. Variables belong to this poll will be read on this task’s invocation.
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| write | The write task. Variables belong to this poll will be written on this task’s invocation. |