IAI America PCON-CFA - Manual (Page 146)

3. PCON-CA/CF
A
140
3.8 I/O Signal Timings
The maximum response time after a control signal is turned ON to operate the ROBO Cylinder in a PLC
sequence program, until a corresponding response (status) signal is returned to the PLC, is expressed by the
formula below:
Maximum response time (msec) = Yt + Xt + 3 + command processing time (operation time, etc.)
Yt: Master station
o node transmission delay
Xt: Node
o master station transmission delay
For the master station
o node transmission delay (Yt) and node o master station transmission delay (Xt),
refer to the operation manuals for the DeviceNet master unit and PLC installed in the master unit.
Field network transmission delay
PLC sequence program
Control signal
Status signal
Master station
o node
transmission delay (Yt)
Node o master station
transmission delay (Xt)
Command processing time
PCON
Control signal
Status signal