HRW HPE8884MR V402 Manual 150622.docx E. & O. E. / Subject to change without notice
Page 5 of 24
Priority Levels
A priority level is possible for each register to enable local or master override, and setting of start-up
defaults.
Registers are Null priority by default, signified by a value of 17, read in the 500’s register range
Manual commands via terminal mode operate at prio. level 9 and are remembered after a
power reset if written (W) during terminal mode
In terminal mode, Release (R) of a manual results in a register reverting to Null priority
Commands from the network are at prio. 8
Setting a point’s priority to a value of 0 (zero) will Write the point’s current value as the start-up
default
Setting a point’s priority to a value from 1…7 will lock the point’s current value so that it cannot
be changed
Setting a point’s priority to Null (17) will unlock the point so future changes to the point’s value
may be made
Example, based on point 25, used as a valve position:
Change position to a value of 22%
o
1050=22
o
Being an analogue value we have used the IEEE Floating Point register range, based
on the formula 25 x 2 +1000 = 1050
Write current value as a manual override
o
525=0
Lock current value
o
525=1
Release current value for future change
o
525=17
