Rockwell Automation 1748 DataSite Configured Panel Installation Instructions - Manual (Page 52)

Publication 1748-IN001B-EN-P - May 2009
52 Configuring the ‘ON’ Push Button for the Human-machine Interface
The following are the suggested program rungs to be used to program the
power control of the HMI. The example shown is for a default time of
20 seconds.
• Display_PB: Map this variable to DataSite DI0
• Display_Power: Map this variable to DataSite DO0
The value of t is the amount of time, in seconds, the display of the HMI will
remain on after the ‘ON’ push button is released. This time should be set to a
maximum value of 30 seconds. This means the display will remain on for an
elapsed time of 30 seconds after the push button is released.
IMPORTANT
Using a time greater than 30 seconds will have an impact on
the battery backup time of the DataSite configured panel. The
HMI should never be programmed so that the display of the
HMI is left on continuously.