PARAMETER RESET FEATURES
On initial power up, all parameters are at "original" values. In many cases, when a Parameter Value is
altered, associated Parameter Values are automatically altered accordingly. When a Parameter Number is
accessed, if the preset Parameter Value displayed is acceptable, no entry is required.
To return an operator adjusted Parameter Value to the preset value, with the appropriate Point Number and
Parameter Number displayed...
To reset numerous parameters to preset values, refer to Master Reset (P999).
Perform a Master Reset (P999) if the DPL+ was "bench tested" using arbitrary
Parameter Values before system installation, following an EPROM
replacement, or whenever complete reprogramming is required.
SPECIAL PARAMETERS
Some Parameter Values are for display purposes only and cannot be operator altered. These are referred to
as
view only
parameters. In the parameters sections of this instruction manual, View Only parameters are
identified by a "(V)" beside the Parameter Number.
Some Parameter Values must be common for all Point Numbers. These are referred to as
global
parameters. When a global parameter is accessed, the Point Number display automatically switches to Point
Number 00, and returns to the Point Number previously selected when a non-global parameter is accessed.
In the parameters sections of this manual, Global parameters are identified by a "(G)" beside the Parameter
Number.
PROGRAMMING SECURITY
All operator programming is retained in non-volatile memory, immune to power interruptions. When
programming is complete, the programmer may be removed and locked away to prevent inadvertent
programming alteration. As well the Lock (P000) parameter may be used.
SECURITY PARAMETER
P000 (G) LOCK
Use this feature (if desired) to secure all programming from inadvertent alteration.
Direct access (cannot be scroll accessed) this parameter after all programming is complete and
enter any value (other than 1954) to activate the programming Lock.
When Lock is activated, the DPL+ may be switched from the RUN mode to the program mode and
the value of any parameter may be viewed but not altered. To unLock, direct access this parameter
and enter the value "1954".
This parameter cannot be reset by pressing .
values: 1954 = off (Parameter Value alteration permitted)
-1 = control relays active during simulation
other = activated (programming secured)
C
C
PL-508 22
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