Setup
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The third step is to configure the link between a DF1 node and File Number combination to a
Logix tag, and the associated action and scan required.
Figure 3.39 - Scheduled Tag Mapping
The Logix Function field specifies whether the transaction will result in a read or write from
the Logix controller’s perspective.
The Scan field specifies at what rate the transaction will be executed. Select a scan class letter
that matches the required interval. Care must be taken to select a realistic scan interval,
taking into account the configured Baud rate and message size.
The Device Type field specifies the type of message that will be sent to the DF1 device. There
are two options: PLC5 and SLC. The latter should be selected when using a MicroLogix device.
The DF1 Node is the remote device’s node.
The Data Address is the remote device’s address and should be specified to the element level.
For example, N10:0. Note that this differs from the DF1 Slave configuration where only the
file is specified.
The Element Count is the number of items to be read or written. In the example above, with
a Data Address of N10:0 and an Element Count of 5, then N10:0 through N10:4 will read from
the DF1 device and written to Logix.
