FIS HDL1, Руководство по эксплуатации

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PROGRAMMING THE DATA LOGGER
PASSWORD PROTECTION
Password protection is intended to prevent unauthorized changes to the data logger.
It does not prevent callers from reading information from the data logger.
As shipped from the factory, password protection is disabled. It is possible for the
user to enable password protection, in which case the following functions will need
the password in order to work:
Memory clears (data, program, audit log)
Program loading
Time setting
Change password
It is also possible to turn password protection off by supplying an empty password
(one with nothing in it
just hit Enter when asked for the new password).
If you lose your password, contact the FTS Service Department. You will need to
provide the serial number of the data logger to allow FTS to remove the lost
password.
PROGRAMMING
WARNING: Sending any program to the data logger, even if the program being
sent is the same as the program currently in the data logger, will cause the
stored data to be erased! Download all the data out of the data logger before
changing the program.
The main focus of the Data Logger Programming Language (DLPL) is to record
data at regular intervals, while making the program easily understood but flexible. To
support this, the programming language allows sensors to be called by name, allows
variables, calculations and does simple error monitoring.
In general, a Data Logger Program (DLP) consists of 3 sections:
The definition section, where sensors and variables are defined.
The initialization section, that is run when the program is first
started, or the data logger is restarted.
The main body, which is the part that does the normal data
logging. This consists of one or more timer blocks.
All sensor readings and variables are expressed internally as single precision floating
point numbers (4 bytes). All intermediate calculations are also in this form. When
data or variables are stored they are converted into a compressed form with
precision (number of decimals) matching that which is specified in the sensor or
variable definition.