Siemens SIMATIC S7 System Manual page 295
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Memory resource usage:
● The data logs consume only load memory.
● There is no set limit for the total number of data logs. The size of all data logs combined
● The maximum possible number for the RECORDS parameter is the limit for an UDint
Table 8- 124 Values of ERROR and STATUS
ERROR
STATUS (W#16#....)
0
0000
0
7000
0
7001
0
7002
1
8070
1
807F
1
8090
1
8091
1
8093
1
8097
1
80B3
1
80B4
1
80C1
1
8253
1
8353
1
8453
1
8B24
1
8B51
1
8B52
1
8C24
1
8C51
1
8C52
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
is limited by the available resources of load memory. Only eight data logs may be open at
one time.
number (4,294,967,295). The actual limit for the RECORD parameter depends on the
size of a single record, the size of other data logs, and the available resources of load
memory. In addition, Microsoft Excel limits the number of rows allowed in an Excel sheet.
Note
A DataLogCreate operation extends over many program scan cycles. The actual time
required for the log file creation depends on the record structure and number of records.
Your program logic must monitor and catch the DataLogCreate DONE bit's transition to
the TRUE state, before the new data log can be used for other data log operations.
Description
No error
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.
Internal error
Invalid file name
Name parameter is not a String reference.
Data log already exists.
Requested file length exceeds file system maximum.
Insufficient load memory available.
MC (Memory Cartridge) is write protected.
Too many open files: No more than eight opened data log files are allowed.
Invalid record count
Invalid format selection
Invalid timestamp selection
Invalid HEADER area assignment: For example, pointing to local memory
Invalid HEADER parameter data type
Too many HEADER parameter data elements
Invalid DATA area assignment: For example, pointing to local memory
Invalid DATA parameter data type
Too many DATA parameter data elements
101BExtended instructions
8.7 Data logging
295
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