Rockwell Automation 5720 DriveLogix System - Manual (Page 231)

Publication 20D-UM002C-EN-P - November 2003
DriveLogix Back-Up on DeviceNet 12-7
Setting the Heartbeat Constant
You can set the heartbeat constant with five rungs of ladder logic. Figure 11.3
shows rungs 0 & 1 and the message set-up used in rung 1. The message in
rung 1 uses the INT data type.
Figure 11.3
Rung 1 message configuration and communication tabs