Siemens SIMATIC NET Specifications Page 157

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Chapter 9. Configuring the I/O Driver with the Power Tool 147
Example 1
PollRec1
Primary Poll Rate = 10 seconds
Secondary Poll Rate = Disabled
Access Time = 5 minutes
In this datablock, when the access time expires, the driver attempts to poll with the secondary
poll rate, but stops because this poll rate is disabled.
Example 2
PollRec2
Primary Poll Rate = 10 seconds
Secondary Poll Rate = 1 minute
Access Time = 5 minutes
In PollRec2, when the access time expires, the driver switches to the secondary poll rate and
then polls the datablock every minute.
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