8-4 Serial Communications
1560D-UM051D-EN-P – February 2005
Display Unit Equivalents Some parameter setting options use a text description when viewed from
the built-in LCD display or a human interface module. For example, the
parameter Starting Mode has the available settings of Soft Start and Current
Limit Start. Table B.2, found in Appendix B, provides the required display
unit decimal equivalent for use when sending a command from a logic
controller to the SMC Dialog Plus™ controller.
Datalinks/SLC Block The SMC Dialog Plus controller does not offer Datalinks. To communicate
Transfers with an SLC logic controller, use the 1747-SN (Series B) scanner. Refer to
the scanner user manual for instructions on block transferring data between
the SMC Dialog Plus controller and an SLC processor.
Interfacing Refer to the appropriate communication module manual for detailed
information regarding communication module installation, DIP switch
settings, block transfer instructions, and communication module trouble-
shooting.
Processing Time The typical time for the SMC Dialog Plus controller to process a single
parameter data request (i.e., block transfer) via the SCANport is approxi-
mately 100 milliseconds. Keep this value in mind when determining the
message length of multiple parameter value read or write operations.
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