Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual
Page 194
6-68
Using Explicit Messaging
20-COMM-E EtherNet/IP Adapter User Manual
Publication 20COMM-UM010G-EN-P
MicroLogix 1100/1400 Controller – Formatting a Message to Read Multiple
Parameters Using Generic Get/Set Attribute Service
Figure 6.85 Custom Scattered Read Message Configuration Screens
The following table identifies the data that is required in each box to
configure a message to read multiple parameters.
General Tab
Example Value
Description
Channel
Comm… Command
Data Table Address
Size in Bytes
Extended Routing…
Service
(1)
Service Code
Class
Instance
Attribute
1
CIP Generic
N60:0
30
(2)
RIX19:0
Custom
4B (Hex.)
93 or 9F (Hex.)
(3)
0 (Dec.)
0 (Dec.)
Controller port to which the network is connected.
Used to access the Parameter Object in the adapter.
An unused controller data table address containing the message
instruction. This address is the starting word of the destination file.
Number of bytes to be transferred. Each byte size is an 8-bit integer.
An unused routing information file for the controller.
Required for scattered messages.
Code for the requested service.
Class ID for the DPI Parameter Object.
Required for scattered messages.
Required for scattered messages.
MultiHop Tab
Example Value
Description
To Address
10.91.100.79
IP address of the adapter connected to the drive.
(1)
The default setting for Service is ‘Custom’, enabling entry of a Service Code not available from the Service pull-down menu. When
choosing a Service other than ‘Custom’ from the pull-down menu, an appropriate Hex. value is automatically assigned to the
Service Code box which is dimmed (unavailable).
(2)
In this example, we are reading five parameters. Each parameter being read requires three contiguous 16-bit words. Scattered read
messages always assume that every parameter being read is a 32-bit integer, regardless of its actual data type. Therefore, the Size
in Bytes must be set to 30. The data structure format is the same as shown on
page 6-66
. Maximum length is 66 words (132 bytes),
which equates to 22 parameters. For parameter numbering, see
DPI Parameter Object on page C-16
DPI Parameter Object on page C-30
(3)
See
for limitations of PowerFlex 7-Class and PowerFlex 750-Series drives when using DPI Parameter Object
Class code 0x93 or Host DPI Parameter Object Class code 0x9F for explicit messaging.