Omron CJ1W-DRM21 Operation Manual page 222

8 Communications Timing
Input Slaves with Less Than 8 Bytes of Input
= 0.016 ×T
T
RT
S
IN1
T :
B
(500 kbit/s: T
Mixed I/O Slaves with Less Than 8 Bytes of Input or Output
= 0.016 × T
T
RT
S
OUT2
S
IN2
T :
B
(500 kbit/s: T
Slaves with More Than 8 Bytes of Input or Out put
T = T + T
RT OH
T
OH
T
BYTE-IN
B :
IN
T
BYTE-OUT :
B
OUT :
Baud rate
500 kbit/s
250 kbit/s
125 kbit/s
For Input Slaves take B
8-4
× S + 0.06 × T
+ 0.05 [ms]
B IN1 B
: The number of Input Slave input words
The baud rate factor
= 2; 250 kbit/s: T
B
× (S ) + 0.11 × T
+ S
B OUT2 IN2
: The number of Mixed I/O Slave output words
: The number of Mixed I/O Slave input words
The baud rate factor
= 2; 250 kbit/s: T
B
× B
+ T
BYTE-IN IN BYTE-OUT
: Protocol overhead
: The input byte transmission time
The number of input words
The output byte transmission time
The number of output words
T
OH
0.306 ms
0.542 ms
1.014 ms
to be 0, and for Output Slaves take B
OUT
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
= 4; 125 kbit/s: T = 8)
B B
+ 0.07 [ms]
B
= 4; 125 kbit/s: T = 8)
B B
× B
[ms]
OUT
T T
BYTE-IN BYTE-OUT
0.040 ms 0.036 ms
0.073 ms 0.069 ms
0.139 ms 0.135 ms
IN
to be 0.