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147
Standard Mode
Section 4-9
4.9.2.1.2
Message Buffer Size
The total message buffer size is designed for management of up to 3000 mes-
sages. Such a large number of data requires a corresponding computing capacity
when the messages are sorted, resorted and initialized. Since this large number
may not always be needed, the user has the option of setting the maximum system
message buffer size to suit his own needs. The default buffer size allows 500 en-
tries.
When determining the message buffer size, it must be considered that approxi-
mately 50 pages of paper are needed when the entire message buffer containing
3000 messages is printed!
The message buffer is output in the message mask. The message sorting criteria
can be set via a system variable.
4.9.2.1.3
Message Texts, Variables
The maximum text length including a formatted variable is 255 characters. The
programming system does not allow longer texts to be input. All characters that are
available in the respective terminal can be used in standard size. One output vari-
able can be included per message text. The variable output format is the same as
that of one-time output variables (variables are transferred only once and are then
displayed) in I/O masks. Individual messages can for example be modified with
selection text or used for several statuses. The output format of the message line
can be modified during operation in a configuration mask for the message mask.
The capabilities for serial and parallel messages are the same.
Example: Complete message format:
No.
Date
Time
Text1
Variable
Text2
1234
25:08:92
11:30:00
Temperature
285
!
C
at Meas. Pt.07
The message consists of the following elements:
1234
4-digit message number
25.08.92
Date, is stored in the terminal when the message is record-
ed by the terminal
11:30:00
Time, is stored in the terminal when the message is record-
ed by the terminal
Temperature
Text (1) preceding variable
285
Value of the variable at the time of the message
!
C at Meas. Pt.07
Text (2) following variable
Содержание NT15S
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Страница 3: ...iii NT4S NT15S NT18S Programmable Terminal Operation Manual Produced March 1999 ...
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