Brief List Of The Most Used Terminology - Siemens SIMATIC OP7 Manual

To erase a letter pinpointed by the cursor.
INS
The letters will then run from right to left.
DEL
If it is used together with SHIFT
To insert a space where the cursor is placed.
INS
SHIFT
The letters will then run from left to right.
DEL
In some software versions it gives help on line.
HELP
When this function is switched on, the "HELP" led
light switches on.
7 8 9
To insert a numerical value
4 5 6
1 2 3
. 0 +/-
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BRIEF LIST OF THE MOST USED TERMINOLOGY

• Programme
A set of instructions. The programme can be memorised in the main menu (Micro PLC) and then recalled in the work
memory (OP7) in order to be carried out. A programme that has just be set can be carried out even if it has not been
saved in the main menu. We advise you to always memorize your programmes in the main memory (MICRO PLC)
so as to avoid accidental deletions.
• Cycle: a set of several segments.
• Segment
Interval of time in which the required values that the chamber must carry out are set.
• Maintenance segment
A segment in which the set temperature (°C) and/or relative humidity (RH%) values are kept constant for a certain
period of time.
• Maximum speed segment
A segment which is carried out at the highest possible speed.
• Controlled slope segment
A segment in which the chamber must reach set point at the required speed (gradient).
• Gradient
Speed at which a segment is carried out. It is expressed as a ratio between the unit of measurement and the time
(C/min.; RH%/min. etc...).
• Set-point
The set value (temperature or relative humidity).
• Flag: Programme variables which may assume only two values or two different states (for example: 0 or 1; ON or
OFF; OK or OFF; SAVE or OFF; etc...)
• Repetitions
It enables an entire programme to be repeated automatically, starting from a specific segment. Up to 9999
repetitions of the entire programme may be carried out. When the machine is switched on, the default value is 1 and
therefore the number of repetitions must always be reset. The operations included at this stage are not memorized
and therefore the data have to be reinserted each time you wish to repeat a programme.
To confirm a choice or a value that has been
ENTER
inserted.
To read alarm signals and to carry out the relevant
ACK
reset.
To change a choice from ON to OFF and
SHIFT
vice versa.
To exit from a page and to return to the preceding
ESC
page. The function is switched on only if it is
visualized on the page.
To move from one line to another or
from one page to another
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