Rockwell Automation 1752-L24BBBE SmartGuard 600 Controllers User Manual - Manual (Page 264)

264 Rockwell Automation Publication 1752-UM001E-EN-P - June 2014
Appendix E Explicit Messages
Send Explicit Messages A SmartGuard controller can send explicit messages from a user application
program. User-registered messages are sent over the network when user-specified
trigger conditions are met. This can be used to notify monitoring and control
devices or as a method for specifying outputs to display devices. Up to 32 bytes of
explicit message data can be sent.
Follow these steps to send an explicit message by using the Logic Editor in
RSNetWorx for DeviceNet software.
1. From the menu bar, choose Function>Transmission Message Setting.
2. Use the TriggerAddress pulldown to select the output tag you want to use
as the trigger for sending the explicit message.
Every time the specified output tag changes from off to on, the explicit
message set as the send message will be sent.
3. In the Retry Count field, type the number of times to retry sending the
transmission if it fails.
Type 0 for no retries.
4. Check the explicit message format of the destination node and created a
send message based on the destination node’s specifications, including
TargetNode, ServiceCode, Class ID, and Instance ID.
Table 39 - Explicit Message Data Format
Parameter Name Data Size
MAC ID 1 byte
Service Code 1 byte
Class ID 2 bytes
Instance ID 2 bytes
Service Data 0...26 bytes