Appendix 5 Processing Time; Link Refresh Time - Mitsubishi Electric MELSEC SW1DNC-CCIEF-B User Manual

Appendix 5
The processing time of the CC-Link IE Field Network consists of the time components below.
Sequence scan + Link refresh time + Link scan time + Slave station processing time = Transmission delay time
Personal computer
User
program
Driver
Link
refresh
time
• Link refresh time: Page 216 Link refresh time
• Link scan time: Page 217 Link scan time
• Slave station processing time: Manual for the slave station used
• Transmission delay time: Page 217 Transmission delay time

Link refresh time

The following is a calculation formula for the link refresh time.
Number of boards that can be installed × 1 [ms]
 
<For Intel Core 2 Duo processor 1.8 GHz>
With a single board installed, the link refresh time of maximum link device points (36k bytes) is less than 1ms.
• Influence by other driver processing and Windows kernel processing
The execution of the link refresh processing may be delayed by the interruption of other driver processing or
Windows kernel processing.
APPX
216

Appendix 5 Processing Time

Processing Time
Master
station
(board)
Link
device
Link scan
time
Slave
station
Link
device
Processing time
of slave station
External
device
External
device