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5 unscheduled messaging – Rockwell Automation Flex/WebPak 3000 DC Drive ControlNet, Network Communication Board, 915FK2101 User Manual

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6-6

ControlNet Network Communication Option Board For Use With FlexPak 3000 and WebPak 3000 DC Drives

6.5

Unscheduled Messaging

Unscheduled communications must use PLC5 Typed Read and Write messages.

In the example below, drive (Cnet mode 6) parameters at file address N10:0 through
N10:9 are read into the controller registers N10:0 through N10:9.

Important: For each message, the element size may not exceed the processor limit

of 103 elements.

Figure 6.6 – Scheduled Messaging Example 1b

Figure 6.7 – Unscheduled Messaging Setup Screen