User manual

40 LogGraph
DE Dostmann Electronic GmbH
The status line at the bottom of the window contains information about the current
program status or the current operations.
The port used is specified in the first field,
o then follows the general status of the port in the second field and
o the currently performed operations are displayed in the third field
The markings "T", "P", "R" and "W" under Mode in the third field and the background
colour have the following meanings:
With regard to fields highlighted in grey , there is currently no operation, with regard
to fields highlighted in green , the appropriately marked operation is taking place.
"R" and "W" represent the reading and writing operations during the communication
with the logger.
"T" indicates an operation that was automatically time-triggered (Timer) and
"P" indicates an operation that was triggered by the program (Program).
"R" indicates a reading operation (Read, read out the data),
"W" indicates a writing operation (Write, request the data),
Sometimes, time- and program-triggered communications may overlap. In this case,
a short message appears and the newly requested operation will be executed once
the previous one has been completed and the message has been confirmed.
An automatic version which bypasses the message and even monitors the completion of the
previous operation has not yet proved to be sufficiently safe, hence, until now, the use of the other
method.