Omron CJ Series Operation Manual page 213

Bit Slave Units
CPU Unit processing
Master Unit processing
Communications cycle
Slave Unit processing
Formula for the Minimum I/O Response Time for a Bit Slave Unit
TIN + TNetCycInt + TCrmInMin + Tcpu + TCrmOutMin + TNetOut + TOUT
TIN:
TNetCycInt:
TCrmInMin:
Tcpu:
TCrmOutMin:
TNetOut:
TOUT:
• TCrmInMin:
0.093 ms
*1 Communications Mode 8
P = (Number of Word Input Slave Units × 0.25 µs) + [{(Number of Bit Input Slave Units × 7) ÷ 8} × 0.375
µs] + [(Number of Word Output Slave Units or Word Input Slave Units, whichever is greater + Number of
Bit Output Slave Units and Bit Input Slave Units, whichever is greater) × 0.5 µs]
P Calculation Example
Conditions
Baud rate
---
P= (64 × 0.25 µs) + (16 × 0.375 µs) + ((64 + 128) × 0.5 µs) = 0.118 ms
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
TNetCycInt
TCrmInMin
TNetCyc
TIN
Minimum I/O response time
Input Slave Unit input delay time
Interrupt processing time
Minimum input processing time at Master Unit
Task period of CPU Unit
Minimum output processing time at Master Unit
Time allotted for output frames in communications cycle time
Output Slave Unit output delay time
Minimum input processing time at Master Unit
Communications mode 3
Word outputs
63 nodes
5 Remote I/O Communications
Tcpu
TCrmOutMin
TNetCyc
TNetOut
TOUT
Communications mode 8
0.46 ms + P ( )
*1
Word inputs Bit outputs
64 nodes 128 nodes
5
Bit inputs
127 nodes
5-61