Omron CS1W-CRM21 - Page 164

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Remote I/O Communications Performance Section 5-3
Note Communications Mode 8
H = (Number of Word Output Slave Units × 0.313
µs) + (Number of Word
Input Slave Units × 3.125
µs) + (Number of Bit Output Slave Units × 0.078 µs)
+ (Number of Bit Input Slave Units × 3.125
µs)
H Calculation Example
Conditions
H = (32 × 0.313 µs) + (64 × 3.125 µs) + (48 × 0.078 µs) + (16 × 3.125 µs)
≅ 0.264 ms
• TCrmInMax: Maximum input processing time at Master Unit
Note Communications Mode 8
I = (Number of Word Input Slave Units × 0.625
µs) + [(Number of Word Output
Slave Units or Word Input Slave Units, whichever is greater) + (Number of Bit
Output Slave Units or Bit Input Slave Units, whichever is greater) × 0.5
µs]
I Calculation Example
Conditions
I = (32 × 0.625 µs) + {(48 + 128) × 0.5 µs} = 0.108 ms
• Tcyc: CPU Unit cycle time
• TCrmOutMax: Maximum output processing time at Master Unit
Communications
mode 3
0.63 ms 0.69 ms 0.98 ms 7.28 ms
Communications
mode 8
0.37 ms + H
(See note.)
0.43 ms + H
(See note.)
0.73 ms + H
(See note.)
7.03 ms + H
(See note.)
Baud rate
Communications
mode
4.0 Mbit/s 3.0 Mbit/s 1.5 Mbit/s 93.75 kbit/s
Baud rate Word outputs Word inputs Bit outputs Bit inputs
--- 32 nodes 64 nodes 48 nodes 16 nodes
Baud rate
Communications
mode
4.0 Mbit/s 3.0 Mbit/s 1.5 Mbit/s 93.75 kbit/s
Communications
mode 0
0.3 ms 0.28 ms 0.26 ms 0.22 ms
Communications
mode 1
0.31 ms 0.29 ms 0.27 ms 0.27 ms
Communications
mode 2
0.35 ms 0.33 ms 0.37 ms 0.37 ms
Communications
mode 3
0.34 ms 0.34 ms 0.38 ms 0.38 ms
Communications
mode 8
0.29 ms + I
(See note.)
0.29 ms + I
(See note.)
0.33 ms + I
(See note.)
0.35 ms + I
(See note.)
Baud rate Word outputs Word inputs Bit outputs Bit inputs
--- 48 nodes 32 nodes 64 nodes 128 nodes
Communica-
tions mode 0
Communica-
tions mode 1
Communica-
tions mode 2
Communica-
tions mode 3
Communica-
tions mode 8
0.086 ms 0.090 ms 0.098 ms 0.094 ms 0.082 ms + J
(See note.)