Rockwell Automation Logix5000 Controllers Produced and Consumed Tags Programming Manual User Manual
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Produce a Large Array Chapter 2
6. Enter this logic.
When the offset value in array_ack[0] is not equal to the current offset value but array_ack[1] equals -999, the consumer has begun to receive a new packet, so the rung moves -999 into
the last element of the packet. The consumer waits until it receives the value -999 before it copies the packet to the array. This guarantees that the consumer has new data.
Rockwell Automation Publication 1756-PM011F-EN-P - October 2014
33
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