Rockwell Automation 20-COMM-ER 20-COMM-ER Dual-Port EtherNet/IP Communication Adapter User Manual - Manual (Page 87)

Rockwell Automation Publication 20COMM-UM015B-EN-P - July 2013 87
Using the I/O Chapter 5
32-bit data is stored in binary as follows:
In this example, the parameter 10 - [Elapsed Run Time] value of 6553.9 Hrs is
read as ‘6553.9’ in Datalink A1 Out (Parameter 310) and Datalink A2 Out
(Parameter 311).
Conversion Example:
Parameter 010 - [Elapsed Run Time] = 6553.9 Hrs
MSW = 0001
hex
= 0001
binary
= 2 16 = 65536
LSW = 0003
hex
=3
Engineering Value = 65536 + 3 = 65539
Parameter 10 Displayed Value = 6553.9 Hrs
Regardless of the Datalink combination, Datalink x1 Out will always contain the
LSW and Datalink x2 Out will always contain the MSW. In the following
example, the PowerFlex 70 drive parameter 242 - [Power Up Marker] contains a
value of 88.4541 hours.
Conversion Example:
Parameter 242 - [Power Up Marker] = 88.4541 hours
MSW = 000D
hex
= 1101
binary
= 2 19 + 2 18 + 2 16 = 851968
LSW = 7F3D
hex
= 32573
Engineering Value = 851968 + 32573 = 884541
Parameter 242 Displayed Value = 88.4541 Hrs
Example Ladder Logic
Program Information
The example ladder logic programs in the sections of this chapter are intended for
and operate PowerFlex 7-Class drives and SMC Flex controllers.
Functions of the Example Programs
The example programs enable you to do the following:
• Receive Logic Status information from the drive.
• Send a Logic Command to control the drive (for example, start, stop).
• Send a Reference to the drive and receive Feedback from the drive.
• Send/receive Datalink data to/from the drive.
MSW 2 31 through 2 16
LSW 2 15 through 2 0
Datalink Word Parameter Data (Hex)
A1 Out LSW 10 0003
A2 Out MSW 10 0001
Datalink Word Parameter Data (Hex)
A2 Out MSW 242 000D
B1 Out LSW 242 7F3D