Rockwell Automation 2100-GK61 DeviceNet to SCANport - Manual (Page 137)

Publication 2100-UM001B-EN-P – January 2001
DeviceNet to SCANport Communication Module with Digital Inputs Parameters B-11
3. In the Tx field, enter the size of the I/O output. Enter 4 for each
datalink enabled and 4 if Com/Ref is enabled. For example, if
Cmd/Ref and all 4 datalinks are enabled, you would enter 20.
4. In the Poll Rate field, select the appropriate rate.
5. In the Change of State/Cyclic section, click the box next to
Change of State/Cyclic. A “✔” appears.
6. Click Change of State.
7. In the Rx field, enter 6 for the size of the I/O input.
8. In the Heartbeat Rate field, enter the desired time for the
maximum interval between messages.
9. Click OK.
Polled and Cyclic Allocation
You can enable both polling and cyclic allocations. This allows the
scanner to poll the adapter at fixed intervals and the adapter to send its
status to the scanner at fixed intervals.
Enabling Polling and Cyclic in the Adapter
Refer to both the “Polled Allocation” section and the “Cyclic
Allocation” section in this chapter for information.
Enabling Polling in the Scanner
Use RSNetWorx to enable polling in the scanner. Refer to Chapter 4,
Configuring a Scanner to Communicate with the Adapter, for more
information on configuring the scanner.
Polling and Cyclic must be enabled in the Edit Device I/O
Parameters dialog box.