PAG OERLIKON AG
SERIES-300 S / SCS
ELEMENTARY DIAGRAM / PRINZIPSCHALTBILD
Microprocessor System
The microprocessor system consists of the following parts:
Programme [28] :
Command memory of the microprocessor [27] . It contains the program-
me instructions in a “Read Only Memory” (ROM).
Data memory [29] :
Data memory of the microprocessor . This memory is used to store and
read the data. After a mains failure the data is not available anymore. It is
a “Static Random Access Memory” (RAM).
Non-Volatile data memory [30] :
This memory is used to store the important data that has to be available
after a mains failure (e.g. Linearity data, calibration data, temperature
adjustment data). It contains an “Electronically Erasable Programmable
Read Only Memory” (EEPROM).
The following tasks are done by the Microprocessor :
- Read and evaluated the data of the A-D Converter
- Optimize the integration time stability detection
- Measure the temperature of the weighing system
- Compensation of the temperature drift on the zero point
- Compensation of the temperature drift on the sensitivity
- Correction of non-linearity
- Calibration to a reference weight
- Drive the data-output
- Execute the multifunctionbox commands (e.g. piece-counting)
- Read the “T”, "MODE" and “ON/OFF”-keys
A 01.04
Summary of Contents for 300 SCS series
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Page 194: ...SERIES 300 S SCS SIP PAG OERLIKON AG CALIBRATION INSTRUCTIONS D 04 11 Final control...
