3 UCN Status Displays
3.7 HPMM Detail Status Displays
246 HPM High-Performance Process Manager Service R688
Honeywell December 2020
If the proper conditions exist, selecting the WRITE LOCK ON target or WRITE LOCK OFF target,
whichever is appropriate, followed by selecting the ENTER target, executes the command.
US ENGINEER keylock position
Failure to have the US keylock in the ENGINEER position when executing the HPM Write Lockout
on/off command results in the HPM Write Lockout Control display shown in the following figure.
Figure 128 HPM Write Lockout Control Display – Improper US Keylock Position