Appendix 3.3
This section describes transmission delay time between the CPU module of the master station and a remote station of
CC-Link when a bridge module is used.
(1) Between the master station and a CC-Link remote I/O station
(a) From a CC-Link remote I/O station to the master station (RX) (input)
The following shows the time it takes for a CPU module device of the master station to turn on (off) after a
signal is input to a CC-Link remote I/O station.
For CC-Link, station-based block data assurance is disabled and the asynchronous mode is used.
• CC-Link IE Field Network station-based block data assurance is available.
Calculated
Calculation formula for asynchronous mode
value
(SM 1) + (LSf n1) +
Normal value
(SM 1) + {LSf (n1 + 1)} +
Maximum value
• CC-Link IE Field Network station-based block data assurance is not available.
Calculated
Calculation formula for asynchronous mode
value
(SM 1) + (LSf 1) +
Normal value
(SM 1) + (LSf 2) +
Maximum value
SM: Sequence scan time of the master station (including the link refresh time of the receiving side)
LSf: Link scan time of CC-Link IE Field Network
n1: Value obtained by rounding up the decimal places of (SM LSf)
: Time for data transfer from CC-Link to CC-Link IE Field Network
R
LSc: Link scan time of CC-Link
Rio: Processing time of a CC-Link remote I/O station ( Manual for the CC-Link remote I/O station used)
128
Transmission delay time
+ (LSc 1) + Rio
R
+ (LSc 2) + Rio
R
+ (LSc 1) + Rio
R
+ (LSc 2) + Rio
R
Calculation formula for synchronous mode
(SM 1) + (LSf 1) +
+ (LSc 1) + Rio
R
(SM 1) + (LSf 2) +
+ (LSc 2) + Rio
R
Calculation formula for synchronous mode
(SM 1) + (LSf 1) +
+ (LSc 1) + Rio
R
(SM 1) + (LSf 2) +
+ (LSc 2) + Rio
R