Omron CJ Series Operation Manual page 212

5 Remote I/O Communications
• TCrmOutMin: Minimum output processing time at Master Unit
Communications
mode 0
0.05 ms
*1 Communications Mode 8
N = (Number of Word Output Slave Units × 0.5 µs) + (Number of Bit Output Slave Units × 0.0625 µs)
N Calculation Example
Conditions
Baud rate
---
N = (48 × 0.5 µs) + (16 × 0.0625 µs) = 0.025 ms
• TCrmInMin:
Communications
mode 0
0.023 ms
*1 Communications Mode 8
O = (Number of Word Input Slave Units × 0.25 µs)
O Calculation Example
Conditions
Baud rate
---
O = 16 × 0.25 µs = 0.004 ms
Reference Example
The following table shows the calculation results for the minimum I/O response time for a Word
Slave Unit with the maximum number of nodes and a CPU Unit task period of 1 ms.
Communica-
tions mode
Communica-
tions mode 0
Communica-
tions mode 1
Communica-
tions mode 2
Communica-
tions mode 3
Communica-
tions mode 8
5-60
Communications Communications
mode 1
0.055 ms 0.06 ms
Word outputs
48 nodes 32 nodes
Minimum input processing time at Master Unit
Communications Communications
mode 1
0.025 ms 0.029 ms
Word outputs
8 nodes 16 nodes
Number of nodes con-
nected
16 word nodes (8 input, 8
output)
32 word nodes (16 input,
16 output)
64 word nodes (32 input,
32 output)
32 word nodes (16 input,
16 output)
128 bit nodes (64 bit
input, 64 bit output)
128 word nodes (64
input, 64 output)
256 bit nodes (128 bit
input, 128 bit output)
CJ-series CompoNet Master Unit Operation Manual for NJ-series CPU Unit (Cat. No. W493)
Communications
mode 2 mode 3
0.06 ms
Word inputs Bit outputs
16 nodes
Communications
mode 2 mode 3
0.025 ms
Word inputs Bit outputs
32 nodes
Word Slave Unit min. I/O response time (ms)
4 Mbps 3 Mbps
4.2 4.2
4.2 4.2
4.3 4.3
4.2 4.3
4.5 4.6
Communications
mode 8
0.045 ms + N ( )
*1
Bit inputs
8 nodes
Communications
mode 8
0.021 ms + 0 (*1)
Bit inputs
48 nodes
1.5 Mbps 93.75 kbps
4.2 6.0
4.3 7.4
4.7 10.2
4.4 8.8
5.0 18.4