App - 2
Appendix 1 Function Processing Time
APPENDICES
(b) Buffer memory access time
1) In a single CPU system configuration, the Block guarantee of cyclic data per
station is set to be disabled in the CC-Link utility.
When accessing the QJ61BT11N (Start I/O No: 0)
2) In a single CPU system configuration, the Block guarantee of cyclic data per
station is set to be enabled in the CC-Link utility.
When accessing the QJ61BT11N (Start I/O No: 0):
• When accessing the buffer memory corresponding to devices that do not
support the Block guarantee of cyclic data per station
• When accessing the buffer memory corresponding to devices that support
the Block guarantee of cyclic data per station.
3) In a single CPU system configuration, when accessing an intelligent function
module other than the QJ61BT11N
Table App.3 Access time
Function name
Communication size
1 word 64 words 512 words
QBF_FromBuf
31 s 64 s 273 s
QBF_ToBuf
34 s 63 s 247 s
Table App.4 Access time
Function name
Communication size
1 word 64 words 512 words
QBF_FromBuf
39 s 74 s 282 s
QBF_ToBuf
46 s 74 s 259 s
Table App.5 Access time
Function
name
The link
refreshing
method of
the CC-Link
Communication size
1 word 64 words 512 words
QBF_From
Buf
automatic
Depending on the timing of access start and link scan, the
access time may change significantly.
Minimum: Access time shown in Table App.4
Maximum: Access time shown in Table App.4 + Link scan
time
QBF_ToBuf
QBF_From
Buf
manual
162 s 194 s 391 s
QBF_ToBuf
80 s 106 s 284 s
Table App.6 Access time
Function name
Communication size
1 word 64 words 512 words
QBF_FromBuf
31 s 64 s 273 s
QBF_ToBuf
34 s 63 s 247 s
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