PERFECT
page 37
17. Report memory
The controller continuously records all relevant measurements, settings and error messages at 1-minute
intervals.
The internal report memory is arranged as a ring memory, i.e. the new data always overwrite the oldest
report data.
The report function can not be switched off but remains active at all times. The data are stored in the controller,
protected against any manipulation. The controller memory can be read to produce documentation.
Every data set is stored with a unique date stamp.
The size of the internal report memory is 1024kB. This corresponds to a memory capacity of approximately
6 months‘ continuous operation.
During ramp operation a larger amount of data are stored in the memory so that the maximum report
duration may be reduced.
If the power supply is interrupted, the instants of power failure and restoration of power are stored in the
controller.
17.1 Reading the report memory
Past report data can be printed either via the RS232C interface or by a PLC3-compatible printer connected
to the oven.
17.2 Reading the report memory into the PC via RS232C
Using the “Celsius 2005“ program the record memory of the controller can be read via the RS232C interface
into a PC where it can be shown graphically, printed, and stored in memory.
Note:
The report memory of the controller is not altered or cleared by the reading procedure.
17.3 Printing the report memory from the oven
(see Section: „Printer“)
If the printer is not ready, e.g. cartridge empty or no paper, no report data are lost. Prints can be repeated
several times since the report memory is not cleared after printing.
The GLP data header is automatically included in the print-out: it contains the following information:
- Printing
date
-
Time period of report
- Running
page
number
-
Serial number and oven designation
