Mitsubishi MELSEC-Q Series User Manual page 782

APPENDICES
App
- 4 Appendix 1 Function Processing Time
(b) Buffer memory access time
1) In case of accessing the QJ61BT11N (Start I/O No: 0) where the data
consistency verification per station function is set to be disabled in the CC-Link
utility in a single CPU system configuration
Function name
QBF_FromBuf
QBF_ToBuf
2) In case of accessing the QJ61BT11N (Start I/O No: 0) where the data
consistency verification per station function is set to be enabled in the CC-Link
utility in a single CPU system configuration
• When accessing the buffer memory corresponding to devices that do not
support the data consistency verification per station function
Function name
QBF_FromBuf
QBF_ToBuf
• When accessing the buffer memory corresponding to devices that support
the data consistency verification per station function.
The link
Function refreshing
name method of
the CC-Link
QBF_From
Buf
automatic
QBF_ToBuf
QBF_From
Buf
manual
QBF_ToBuf
3) In a single CPU system configuration, when accessing an intelligent function
module other than the QJ61BT11N
Function name
QBF_FromBuf
QBF_ToBuf
Table App.11 Access time
Communication size
1 word
16 s
17 s
Table App.12 Access time
Communication size
1 word
19 s
20 s
Table App.13 Access time
Communication size
1 word
Depending on the timing of access start and link scan, the
access time may change significantly.
Minimum: Access time shown in Table App.12
Maximum: Access time shown in Table App.12 + Link scan
time
54 s
39 s
Table App.14 Access time
Communication size
1 word
16 s
17 s
64 words 512 words
41 s 233 s
43 s 222 s
64 words 512 words
45 s 234 s
47 s 227 s
64 words 512 words
80 s 272 s
65 s 246 s
64 words 512 words
41 s 233 s
43 s 222 s