Datalogclose - Siemens SIMATIC S7 System Manual

The NAME must be the name of a data log created by the DataLogCreate instruction. If only
the NAME is provided and the NAME specifies a valid data log, then the corresponding ID
will be returned (ID parameter as an output).
Note
General usage of data log files
 Data log files are automatically opened after the DataLogCreate and DataLogNewFile
 Data log files are automatically closed after a PLC run to stop transition or a PLC power
 A Data log file must be open before a new DataLogWrite operation is possible.
 A maximum of eight data log files may be open at one time. More than eight data log files
Table 8- 127 Values of ERROR and STATUS
ERROR STATUS (W#16#)
0 0000
0 0002
0 7000
0 7001
0 7002
1 8070
1 8090
1 8091
1 8092
1 80C0
1 80C1
8.7.2.3

DataLogClose

Table 8- 128 DataLogClose instruction
LAD / FBD SCL
"DataLogClose_DB"(
In the SCL example, "DataLogClose_DB" is the name of the instance DB.
2
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
operations.
cycle.
may exist, but some of them must be closed so no more than eight are open.
Description
No error
Warning: Data log file already open by this application program
Call with no REQ edge: BUSY = 0, DONE = 0
First call with REQ edge (working): BUSY = 1, DONE = 0
N call (working): BUSY = 1, DONE = 0
th
All internal instance memory is in use.
Data log definition is inconsistent with existing data log file.
Name parameter is not a String reference.
Data log does not exist.
Data log file is locked.
Too many open files: No more than eight opened data log files are allowed.
req:=_bool_in_,
done=>_bool_out_,
busy=>_bool_out_,
error=>_bool_out_,
status=>_word_out_,
ID:=_dword_inout_);
Description
Closes an open data log file. DataLogWrite operations to
a closed data log result in an error. No write operations
are allowed to this data log until another DataLogOpen
operation is performed.
A transition to STOP mode will close all open data log
files.
STEP 7 automatically creates the associated instance
DB when you insert the instruction.
101BExtended instructions
8.7 Data logging
297