Omron PROFINET NX-PNC202 User Manual page 191

 Maximum I/O Response Time
The maximum I/O response time (T
T = T + (T
max in
PLC
PROFINET
PROFINET
Coupler Unit
T
nxb_cycle
NX Input Unit
T
in
NX Output Unit
T : NX Input Unit switching response time
in
3 x T
nxb_cycle
2 x T : PROFINET communication period
rm
2 x T : PLC cycle time
plc
2 x T : PROFINET communication period
rm
2 x T
nxb_cycle
T : NX Output Unit switching response time
out
NX-series PROFINET Coupler Unit User's Manual (W623)
max
x 5) + (T x 4) + (T
nxb_cycle rm
T T
rm rm
T T
nxb_cycle nxb_cycle
: NX bus communication time
: NX bus communication time
) can be calculated with the following formula.
x 2) + T
plc out
T
max
T T
plc plc
10 I/O Refreshing
T T
rm rm
T T
nxb_cycle nxb_cycle
T
out
10
10 - 5