Siemens SINAMICS G110M Посібник - Сторінка 30

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7 Using AIOs in a new application

7.2.2

I/O Interface

Connecting the instruction to the Controller IO tags is accomplished by moving the

IO data into the AOI Interface.

Figure 7-1 Configuring AOI Communication

The second rung holds the AOI. The local variables "InputDataBuffer" and

"OutputDataBuffer" are used as storage for the AOI to receive and send data to the

Controller IO tags.

The first rung copies the IO data for the drive to a local variable to be used by the

AOI as inputs in the "DRV_STATUS" parameters. "DRV_STATUS" and

"DRV_CONTROL" are declared as INOUT parameters and are therefore passed

by reference.

The third rung holds the copy command that moves the control data from the

working variable "OutputDataBuffer" to the controller IO tag.

All AOIs provided will use this method of data exchange with IO containing the

drive data. Additional access to the control data can be performed before the data

is copied to the IO Tag. This allows the user to utilize features already mapped in

the telegram that are not controlled by the AOI. In a similar manner the Status data

can be accessed by the user program

SINAMICS G: Control of a G120 with an Allen-Bradley controller

(Compact/ ControlLogix with RSLogix 5000) via EtherNet/IP

Entry-ID: 82843076,

V4.0,

09/2018