Logix5000 write optimization

The Poke Mode parameter in the configuration screen of the ABCIP Communication Driver (OI.ABCIP.x) in the OCMC controls how the Communication Driver treats pokes within a transaction with respect to optimization and folding.

You can select one of three modes:

• Control Mode

• Transition Mode

• Optimization Mode (ABCIP Default)

  Control Mode - preserves the poke order without folding. Typically used by batch and control applications that depend on the order of the pokes and processing every item poked.

  Transition Mode - preserves the poke order with minimum folding by keeping the first, second, and last poke values of an item. Typically used by batch and control applications that depend on the order of pokes but not processing every item poked.

  Optimization Mode (ABCIP Default) - does not preserve the poke order and has maximum folding by only poking the last value of an item.

  When Poke Mode is set to Optimized, the Communication Driver will attempt to group consecutive tag writes (array elements) into a single request. Depending on the timing situation, there is no guarantee that consecutive tag writes will be grouped into a single request.

  Note: For more information on all Communication Driver Global Parameters, see the Communication Drivers Pack Help.