Figure 6.31 – Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual
Page 153
Using Explicit Messaging
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20-COMM-E EtherNet/IP Adapter User Manual
Publication 20COMM-UM010G-EN-P
PLC-5 Controller – Formatting a Message to Write a Single Parameter
Figure 6.31 Write Single Message Configuration Screens
The following table identifies the data that is required in each box to
configure a message to write a single parameter.
General Tab
Example Value
Description
Communication Command
Data Table Address
Size in Elements
Port Number
Data Table Address
MultiHop
PLC-5 Typed Write
N50:0
2
(1)
2
N151:30
(2)
Yes
Controller type and command type for controller to write data to the drive.
An unused controller data table address containing the message instruction. This
address is the starting word of the source file.
Number of elements (words) to be transferred. Each element size is a 16-bit integer.
Controller port to which the network is connected.
Specific starting address of the destination file in the drive.
Enables communication to allow network messaging to be routed to the drive.
MultiHop Tab
Example Value
Description
To Address
10.91.100.79
IP address of the adapter connected to the drive.
(1)
In this example, Accel Time 1 is a 16-bit integer parameter. Because the N151 file used for the data transfer occupies two contiguous 16-bit words, the Size
in Elements must always be set to 2 regardless of whether the parameter being written to is a 16-bit integer or a 32-bit integer.
(2)
See
for N-file addressing. Below are some examples of how to address N-files:
N-File Address
Data Type
Description
Notes
N151:30
16-bit integer
Parameter 140 of PowerFlex 70 drive
Example ladder logic
rungs are shown in
different data types.
N150:50
32-bit REAL
Parameter 25 of PowerFlex 750-Series drive
N155:200
32-bit integer
Parameter 725 of PowerFlex 750-Series drive
N209:156
32-bit REAL
Port 5: Parameter 78 of 24V I/O module in
PowerFlex 750-Series drive
N201:14
16-bit integer
Port 1: Parameter 7 of 20-HIM-A6 HIM in
PowerFlex 750-Series drive