Rockwell Automation Allen-Bradley DriveLogix 5730 User Manual page 118

6-20 Communicating with Devices on an EtherNet/IP Link
Type of MSG
Instruction: Supported Source File Types:
DriveLogix5730 In the DriveLogix5730 controller, specify the source data type
writes to PLC-5 or based on the destination device:
SLC
PLC-5: SINT, INT, DINT, or REAL
SLC: INT, REAL
Example source element: array_1
DriveLogix5730 In the DriveLogix5730 controller, select one of these data
writes to PLC-2 types:
SINT, INT, DINT, or REAL
Example source element: array_1
DriveLogix5730 Specify the destination file type based on the destination
reads from PLC-5 device:
or SLC
PLC-5 typed read: S, B, N, or F
PLC-5 word-range read: S, B, N, F, I, O, A, or D
SLC: B, N or F
Example source element: N7:10
DriveLogix5730 Use the PLC-2 compatibility file.
reads from PLC-2
Example source element: 010
Typed read command
16-bit words in
PLC-5 controller
1
2
3
4
The typed commands maintain data structure and value.
For MSG instructions originating from a DriveLogix5730 controller to a
PLC or SLC controller:
The DriveLogix5730 controller can send typed or word-range commands to
PLC-5 controllers. These commands read and write data differently. The
following diagrams show how the typed and word-range commands differ.
32-bit words in
DriveLogix5730 controller
1
2
3
4
Supported Destination File Types:
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, N or F
Example destination tag: N7:10
Use the PLC-2 compatibility file.
Example destination tag: 010
In the DriveLogix5730 controller, specify the destination data
type based on the destination device:
PLC-5: SINT, INT, DINT, or REAL
SLC: INT, REAL
Example destination tag: array_1
In the DriveLogix5730 controller, select one of these data
types:
SINT, INT, DINT, or REAL
Example destination tag: array_1
Word-range read command
16-bit words in
PLC-5 controller
1
2
3
4
The word-range commands fill the destination tag contiguously. Data
structure and value change depending on the destination data type.
32-bit words in
DriveLogix5730 controller
2
1
4
3