Performance Value - Mitsubishi Electric MELSEC iQ-R Series Manual

Restrictions and precautions
• This FB does not include the error recovery processing. Prepare the error recovery processing separately to suit the user's
system and the expected operation.
• The FB cannot be used in an interrupt program.
• Using the FB in a program that is to be executed only once, such as a subroutine program or a FOR-NEXT loop, has a
problem that i_bEN (execution command) can no longer be turned off and normal operation is not possible; Always use the
FB in a program that is capable of turning off the execution command.
• The FB requires the configuration of the ladder for every input label.
• To use more than one of this FB, create an interlock to avoid simultaneous execution.
• Change the memory/device setting of CPU parameter so that the memory capacity required to use this FB is secured. If the
memory/device setting is not changed, an error may occur on GX Works3.
• The SP.FWRITE instruction is used in this FB. If a value that cannot be used in the SP.FWRITE instruction is specified for
i_snAppendFileName (CSV file name), an operation error (3405H) may occur when the FB is executing. For details on the
SP.FWRITE instruction, refer to the following.
 MELSEC iQ-R Programming Manual (CPU Module Instructions, Standard Functions/Function Blocks)
• Specify a string (ASCII code or Shift JIS code) for i_snAppendFileName. If anything other than string is specified for
i_snAppendFileName, a file may not be written.

Performance value

The following table lists the performance values of this FB under the following conditions. The numeric value in the table
varies depending on the time required for the processing programs other than this FB.
• CPU module: R120CPU
• SD memory card: NZ1MEM-4GBSD
• File register storage location: Extended SRAM cassette
• FB compilation method: Macro type
Input label
Number of channels
1
2
3
4
*1 The time required from start to end of the processing
2 FILE OPERATION FB
14
2.1 M+FileOperation_SaveLoggingCSV_W_R
Time required for the
processing
Number of save points
1 307
10000 4090
100000 38800
1000000 396000
10000000 3930000
1 338
10000 6120
100000 55200
1000000 589000
1 352
10000 7570
100000 74700
1000000 769000
1 337
10000 9440
100000 93600
1000000 970000
Maximum scan time
*1
(ms) (ms)
0.323
4.070
4.070
4.070
4.070
0.343
5.110
5.110
5.110
0.366
6.160
6.190
6.250
0.404
7.260
7.260
7.400
Number of scans (scan)
2171
28435
270103
2771811
27063525
2308
42817
385939
4063547
2358
52829
521317
5297023
2413
65646
650558
6628888