Siemens S7-1200 System Manual page 387

Table 8- 163 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
DataLogWrite (Write data log) instruction
Table 8- 164 DataLogWrite instruction
LAD / FBD SCL
"DataLogWrite_DB"(
req:=_bool_in_,
done=>_bool_out_,
busy=>_bool_out_,
error=>_bool_out_,
status=>_word_out_,
ID:=_dword_inout_);
In the SCL example, "DataLogWrite_DB" is the name of the instance DB.
2
Table 8- 165 Data types for the parameters
Parameter and type
REQ IN
ID In/Out
DONE OUT
BUSY OUT
ERROR OUT
STATUS OUT
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
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.
Description
Writes a data record into the specified data log. The pre-existing target
data log must be open before a DataLogWrite operation is allowed.
STEP 7 automatically creates the associated instance DB when you
insert the instruction.
Data type Description
Bool A low to high (positive edge) signal starts the operation. (Default value:
False)
DWord Numeric data log identifier. Only used as an input for the DataLogWrite
instruction. (Default value: 0)
Note: Symbolic name access for this parameter is not allowed.
Bool The DONE bit is TRUE for one scan, after the last request was
completed with no error.
Bool
0 - No operation in progress
•
1 - Operation on progress
•
Bool The ERROR bit is TRUE for one scan, after the last request was
terminated with an error. The error code value at the STATUS
parameter is valid only during the single scan where ERROR = TRUE.
Word Execution condition code (Default value: 0)
Extended instructions
8.7 Recipes and Data logs
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