Rockwell Automation 20-COMM-E PowerFlex EtherNet/IP Adapter User Manual
Page 181
Using Explicit Messaging
6-55
20-COMM-E EtherNet/IP Adapter User Manual
Publication 20COMM-UM010G-EN-P
MicroLogix 1100/1400 Controller – Formatting a Message to Read a Single
Parameter Using Read/Write Parameter Service
Figure 6.67 Read Parameter Message Configuration Screens
The following table identifies the data that is required in each box to
configure a message to read a single parameter.
General Tab
Example Value
Description
Channel
Comm… Command
Data Table Address
Size in Bytes
Extended Routing…
Service
(1)
Instance
(2)
1
CIP Generic
N40:0
4
(3)
RIX15:0
Read Parameter
3 (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.
Code for the requested service.
Instance number is the same as the parameter number.
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)
Only drive parameters (Port 0) can be read using Parameter Object Class code 0x0F. To read a parameter of a peripheral in another
port, use DPI Parameter Object Class code 0x93 (see
).
(3)
In this example, Output Current is a 32-bit integer parameter requiring the Size in Bytes field to be set to ‘4’. If the parameter being
read is a 16-bit integer, the Size in Bytes must be set to ‘2’. When using a PowerFlex 700S or PowerFlex 750-Series drive, Output
Current is a floating point number requiring the Size in Bytes to be set to ‘4’. See the drive documentation to determine the size of
the parameter and its data type (16-bit or 32-bit integer or REAL).