Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit - Manual (Page 17)

17 Publication 1408-UM001B-EN-P - May 2008 17
Chapter
4
Explicit Messaging
This section discusses data retrieval and parameter configuration using
explicit messaging from Rockwell Automation controllers. Explicit
messaging allows you to read and write from a controller to specific
data tables within the power monitor. With explicit messages, users
can read real-time power and energy values, configure analog input
parameters, configure communications parameters, and also read
energy logs.
In general, these instructions apply to Ethernet network
communication (Ethernet/IP protocol) and Serial communication
(DF1 half-duplex or full-duplex or DH485 protocols), provided that
the protocol is supported by the controller. If using serial
communication, the controller serial port must be correctly configured
for protocol, communication rate, or parity. Refer to the appropriate
controller user documentation for further details.
Please refer to Appendix A , Powermonitor 1000 Data Tables for
descriptions of the power monitor data tables and their data access
privileges, and data types.
The power monitor allows PLC-5 Typed, SLC Typed, and CIP Generic
message requests.
Explicit Message Setup –
Examples This section gives examples on how to set-up explicit messaging.
Read/Write Single or Multiple Elements
You can perform single or multiple element reads and writes to the
power monitor. Below is a table documenting the message type to use
for specific read/write type and communication scenarios.