IAI America PCON-CFA - Manual (Page 247)

4. SCON-CA
241
4.8 I/O Signal Timings
The maximum response time after a given control signal is turned ON to operate the ROBO Cylinder using the
PLC’s sequence program, until a response (status) signal is turned, is expressed by the formula below:
Maximum response time (msec) = Yt + Xt + 2 + Command processing time (operation time, etc.)
Yt: Master station
o slave station transmission delay time
Xt: Slave station
o master station delay time
For the master station
o slave station transmission delay time (Yt) and slave station o master station delay time
(Xt), refer to the operation manuals for the PROFIBUS-DP master unit and the PLC in which the master unit is
installed.
Field network transmission delay time
Command
processing time
PLC sequence program
Control signal
Status signal
SCON-CA
Control signal
Status signal
Master station o slave
station transmission
delay time (Yt)
Slave station
o master
station delay time (Xt)