Rockwell Automation Logix5000 Controllers Messages Programming Manual - Manual (Page 17)

Controller messages Chapter 1
Write 16-bit integers
DINTs from the project Buffer of INTs Data for the
device
DINT_Array[0] INT_Buffer[0] Word 1
DINT_Array[1] INT_Buffer[1] Word 2
DINT_Array[2] INT_Buffer[2] Word 3
Description
An FAL instruction converts the DINTs from the Logix5000 controller to INTs.
The MSG instruction writes the INTs from the temporary array to the device.
Example: Read integer values from a PLC-5 controller
If Condition_1 = 1
and Msg_1.EN = 0 (MSG instruction is not enabled)
then read 3 integers from the PLC-5 controller and store them in INT_Buffer (3 INTs).
If Msg_1.DN =1 (MSG instruction has read the data)
then reset the FAL instruction.
The FAL instruction sets DINT_Array = INT_Buffer. This converts the values to 32-bit integers (DINTs).
Rockwell Automation Publication 1756-PM012F-EN-P - October 2014 17