Omron CS1W-CRM21 - Page 163

141
Remote I/O Communications Performance Section 5-3
The figures in parentheses are when message communications are not used.
Note Communications Mode 8
G = (Number of Word Output Slave Units connected × additional time per
Word Output Slave Unit)
+ (Number of Word Input Slave Units × additional time per Word Input Slave
Unit)
+ (Number of Bit Output Slave Units × additional time per Bit Output Slave
Unit)
+ (Number of Bit Input Slave Units × additional time per Bit Input Slave Unit)
Additional Time Per Unit by Slave Unit Type
G Calculation Example
Conditions
G = (16 × 5.31 µs) + (32 × 15.55 µs) + (64 × 0.66 µs) + (32 × 14.49 µs)
≅
10.88 ms
• 0.1 ms: Interval for inputting input data
• TNetCycInt: Interrupt processing time
Communications mode 3 256 input words, 256 output words
+ 128 bit inputs, 128 bit outputs
2.0 ms
(1.8 ms)
2.5 ms
(2.3 ms)
5.9 ms
(5.5 ms)
72.1 ms
(65.7 ms)
Communications mode 8 1,024 input words, 1,024 output
words + 256 input bits, 256 output
bits
Note The number of connectable
nodes is 128 for Word Slave
Units (64 input and 64 out-
put) and 256 for Bit Slave
Units (128 bit input and 128
bit output).
0.79 ms + G
(0.64 ms +
G) (See
note.)
0.85 ms + G
(0.64 ms +
G) (See
note.)
1.94 ms + G
(1.52 ms +
G) (See
note.)
24.81 ms +
G (17.74 ms
+ G) (See
note.)
Baud rate
Communications mode
Maximum I/O 4.0 Mbit/s 3.0 Mbit/s 1.5 Mbit/s 93.75 kbit/s
Baud rate
Slave Unit
type
4.0 Mbit/s 3.0 Mbit/s 1.5 Mbit/s 93.75 kbit/s
Word Output
Unit
5.31 µs5.78 µs11.02 µs 171.48 µs
Word Input
Unit
15.55 µs 22.42 µs53.44 µs 667.58 µs
Bit Output Unit 0.66 µs0.74 µs 1.33 µs 21.60 µs
Bit Input Unit 14.49 µs 19.18 µs45.08 µs 529.18 µs
Baud rate Word outputs Word inputs Bit outputs Bit inputs
4.0 Mbit/s 16 Units 32 Units 64 Units 32 Units
Baud rate
Communications
mode
4.0 Mbit/s 3.0 Mbit/s 1.5 Mbit/s 93.75 kbit/s
Communications
mode 0
0.40 ms 0.45 ms 0.60 ms 6.90 ms
Communications
mode 1
0.42 ms 0.48 ms 0.68 ms 6.98 ms
Communications
mode 2
0.48 ms 0.53 ms 0.82 ms 7.11 ms