Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual User Manual
Page 135
Publication 1769-UM009E-EN-P - August 2009
135
CompactLogix Backup on the DeviceNet Network Appendix B
Setting the Heartbeat Constant
You can set the heartbeat constant with five rungs of ladder logic. This figure
shows rungs 0 and 1 and the message setup used in rung 1. The message in
rung 1 uses the INT data type.
Rung 1 Message Configuration and Communication tabs.
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