Logging The Quality Assurance - Siemens SIMATIC S7-1200 Manual

3 Basics

3.4 Logging the quality assurance

3.4 Logging the quality assurance
Table 3-4
No.
1. Within the framework of the configuration,
logging is executed with the help of the "Data
Log" functionality in the flash memory of the
S7-1200.
Each data log entry includes the following
data:

Recipe ID

Diameter of the wall anchors to be
packaged

Individual weight of a wall anchor

Quantity (number of the wall anchor to be
packaged)

Tolerance in gram

Total weight measured

Quality of the filling (good/poor)

Product ID (packet no.)
2. Logging is performed with the help of the
"DataLog" function block, once packaging and
quality check of the product has been
completed.
3. When the logging process is started, the FB
"DataLog" writes the current values into the
flash memory of the CPU 1214C. With every
call, a new data record is added to the already
existing log data. The size of the log file is
specified with 1000 data records before the
oldest is overwritten. (Ring buffer)
Weighing, Controlling and Logging (Set 6)
Entry ID: 82454336, V2.0,
Function
10/2017
Comment
DataLog
205 g

When creating the log file (first call of FB
"DataLog") its size can be determined
(memory capacity of the flash memory is
assumed).

In addition, a date and time stamp is
stored for each data record
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