Scanport command reference, Scanport command reference -3 – Rockwell Automation 8720MC Drives Integration Manual User Manual

Page 77

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Publication 8720MC-IN002A-EN-P — December 2002

SCANport Command Interface

4-3

SCANport Command
Reference

For applications where a digital communications network interface is
the preferred interface, one of the Allen-Bradley 1200 series SCANport
adapter modules must be used. Regardless of the control network the
method of passing data to and from the drive is the same. Figure 4.2
illustrates the nature of the data exchanged. The illustration uses
DeviceNet as an example of a open communication network.

Figure 4.2
SCANport Adapter Communication Interface

Word 0

Word 1

Word 2

Word 3

Word 4

Word 5

Word 6

Word 7

Word 8

Word 9

Logic Command

Reference

Datalink A1

Datalink A2

Datalink B1

Datalink B2

Datalink C1

Datalink C2

Datalink D1

Datalink D2

Word 0

Word 1

Word 2

Word 3

Word 4

Word 5

Word 6

Word 7

Word 8

Word 9

Logic Status

Feedback

Datalink A1

Datalink A2

Datalink B1

Datalink B2

Datalink C1

Datalink C2

Datalink D1

Datalink D2

SP_Logic_Command

SCANp_An1_Value

SP_Data_Input_A1

SP_Data_Input_A2

SP_Data_Input_B1

SP_Data_Input_B2

SP_Data_Input_C1

SP_Data_Input_C2

SP_Data_Input_D1

SP_Data_Input_D2

SP_Logic_Status

SCANp_Analog_Out

SP_Data_Output_A1

SP_Data_Output_A2

SP_Data_Output_B1

SP_Data_Output_B2

SP_Data_Output_C1

SP_Data_Output_C2

SP_Data_Output_D1

SP_Data_Output_D2

Output Mapping

(Write)

Input Mapping

(Read)

Message

Handler

Message

Buffers

Message Handler

PLC,
SLC,

PC

Scanner

1203-GK5

DeviceNet to SCANport

8720MC Drive 1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

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