Omron PROFINET NX-PNC202 User Manual page 190

10 I/O Refreshing
 Minimum I/O Response Time
The minimum I/O response time (T
T = T + T
min in
PLC
PROFINET
PROFINET
Coupler Unit
NX Input Unit
T
in
NX Output Unit
T : NX Input Unit switching response time
in
T : NX bus communication time
nxb_cycle
T : PROFINET Coupler's communication time (input)
rt_in
T : PLC cycle time
plc
T : PROFINET Coupler's communication time (output)
rt_out
T : NX bus communication time
nxb_cycle
T : NX Output Unit switching response time
out
10 - 4
) can be calculated with the following formula.
min
+ T + T + T
nxb_cycle rt_in plc rt_out
T
rt_in
T
nxb_cycle
+ T + T
nxb_cycle out
T
min
T
plc
T
rt_out
T
nxb_cycle
NX-series PROFINET Coupler Unit User's Manual (W623)
T
out