11
PROGRAMMER
INDEX
Function overview
11
Getting started
12
Program run mode
12
Display functions
12
Example program
13
Function map
14
Function list
16
Memory allocation table
17
Memory full indicator
17
Programming example
18
Program edit example
18
FUNCTION OVERVIEW
The Programmer function in Level P enables the Model 9500P to control applications
needing
Setpoint
changes over time. Examples of this are
Ramp
changes where a gradual
Rate
of change can be set, or
Step
changes which are instantaneous. These can be
separated by
Soak
periods during which the process is held at a constant value. Each
individual time interval of the program or
Segment
, together with it’s associated moving
setpoint value can be stored as a unique
Program
and for example be represented by the
diagram below.
Setpoint
Ramp
Soak
Step
Time (Segments)
In addition to those settings that determine the segment profile, it is also necessary to set
program start
values, together with the preferred
ramp rate time units
for each individual
program.
At the end of a sequence, a Program can be arranged to repeat (
Loop
), either a specified
number of
Cycles
, or continuously. Only one
Loop
can be included in a
Program
. When
the program is running, the
Display
indicates progress through the sequence of segments,
and can additionally be interrogated for further segment information.
It is also possible to CALL an already existing program as a sub program that can be
inserted as a segment of another program.
To speed up
Program
configuration, several
Edit
functions have been provided so that
individual
Segments
and
Programs
may be
Deleted
or
Inserted
, and an entire
Program
may be
Copied
and then
Pasted
into another that it will replace.
For safety reasons, three modes of recovery from a power failure are available. These either
automatically
Re-start
the Program from the beginning,
Continue
it from where it stopped,
or
Hold
it waiting for a user re-start.
Either one or both of the two auxiliary outputs can be configured as
Event
outputs.
Engaging the
Holdback
feature will temporarily halt Setpoint ramping to allow the process
temperature to catch up should it deviate by more than a pre-set amount during a
Ramp
segment.
To afford maximum programming flexibility, memory is allocated dynamically, and not pre-
allocated. This allows the user the freedom to configure a small number of long programs
or a larger number of shorter ones, up to the permitted maximum of 126 Segments per
program, and a limit of 31 Programs. Should these limits be exceeded, or the Programmer
memory become fully used, the display will read
ProG FULL
. Programs can be planned
using the
Memory Allocation Table
which details the memory requirements of individual
segment types. During configuration a check can be kept on memory usage by
interrogating the
USEd
feature of the display to give an instant reading of ‘percentage
memory used’.
Finally, once a program has been configured, it can be run from the
run off/on/hold
controls in Level P, and in addition a quick access
run/hold
toggle is directly available from
the front panel.
The Programmer
Functions List
describes the full range of available
Settings
for each
Programmer Function
together with their display mnemonic. The
Model 9500P
is supplied
with a suite of
Factory Settings
for each
Function
. These are shown in bold type.
The Functions Map illustrates the relationship between the
Functions
and their
Settings
and provides a guide to the
Keying Operations
required to navigate around the menu
when configuring or running a Program.
English
