Rockwell-automation 5730 DriveLogix5730 Controller for PowerFlex 700S Manual do Utilizador Página 151

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Communicating with Devices on a ControlNet Link 7-11
Communicating with Another Logix-Based Controller
All Logix-based controllers can use MSG instructions to communicate with
each other. The following examples show how to use tags in MSG
instructions between Logix-based controllers.
The source and destination tags:
must be controller-scoped tags.
can be of any data type, except for AXIS, MESSAGE, or
MOTION_GROUP.
Communicating with Other Controllers Over ControlNet
The DriveLogix5730 controller also uses MSG instructions to communicate
with PLC and SLC controllers. The MSG instructions differ depending on
which controller initiates the instruction.
For MSG instructions originating from a DriveLogix5730 controller to a
PLC or SLC controller:
Type of MSG Instruction: Example Source and Destination:
Logix-based controller writes to Logix-based
controller
(CIP Data Table Write)
source tag
destination tag
array_1
array_2
Logix-based controller reads from
Logix-based controller
(CIP Data Table Read)
source tag
destination tag
array_1
array_2
Type of MSG
Instruction: Supported Source File Types: Supported Destination File Types:
DriveLogix writes
to PLC-5 or SLC
In the DriveLogix controller, specify the source data type
based on the destination device:
PLC-5: SINT, INT, DINT, or REAL
SLC: INT
Example source element: array_1
Specify the destination file type based on the
destination device:
PLC-5 typed write: S, B, N, or F
PLC-5 word-range write: S, B, N, F, I, O, A, or D
SLC: B or N
Example destination tag: N7:10
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