Chapter 4: Configuring the SRU Table (A197_SRU)
The SRU table contains the relevant configuration information for SRU polling and control. Each record in the SRU table defines the parameters for a single SRU.
Table 5 SRU Configuration Table Parameters
Name
Range
Description
| SRU Address | 0 .. 255 | This parameter defines the communication address for this SRU. Also referred |
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| to as Destination Station Number (DST). |
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| Station Address | 0 .. 255 | This parameter defines the communication address for the DCA. Also referred |
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| to as Source Station Number (SRC). |
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| This parameter defines the frequency (in milliseconds) at which |
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| 0 .. 1000000000 | communication with the SRU will be attempted when it is |
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| A typical |
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| Time Sync | This parameter defines the frequency (in milliseconds) at which the Time |
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| Interval | 0 .. 1000000000 | Synchronization sequence will be executed. |
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| A typical Time Sync interval is 3600000 milliseconds (1 hour). |
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| Data Read | This parameter defines the frequency (in milliseconds) at which Data Read |
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| Interval | 0 .. 1000000000 | sequence will be executed. This sequence is used to retrieve all the digital |
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| input and analog input data from the SRU as configured in the A197_PAR |
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| Partition Table. |
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| A typical scan interval is 60000 milliseconds. |
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| Polling Interval | This parameter defines the frequency (in milliseconds) at which the SRU will |
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| 0 .. 1000000000 | be polled. If 0 is used, data will be retrieved as often as possible. If |
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| the scan is disabled. If the COM record for this SRU record is set to Full- |
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| Duplex mode, this sequence is disabled. |
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| A typical scan interval is 60000 milliseconds. |
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Restricted |
Full | 9 |
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