Omron SYSMAC CJ1W-EIP21 Manual de usuario Pagina 324

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Message Service Transmission Delay Section 10-5
For details, refer to the CPU Unit’s Operation Manual.
Send Processing
Transmission Delay The transmission delay time depends on the baud rate set for the EtherNet/IP
Unit or built-in EtherNet/IP port, as shown in the following table. (There may
be additional delays due to the other devices in the network, such as switch-
ing hubs.)
Receive Processing
CPU Bus Unit Service
Cycle (Remote Node)
The following table shows the CPU Bus Unit service cycle, which depends on
the CPU Unit’s CPU processing mode setting.
Note CJ2 CPU Units support only Normal Mode.
For details, refer to the CPU Unit’s Operation Manual.
CPU Bus Unit Service
Processing Time (Remote
Node)
The following table shows the CPU Bus Unit service processing time, which
depends on the CPU Unit’s CPU processing mode setting.
Command 0.550 ms
Response (Number of words being transferred × 0.002) + 0.550 ms
Baud rate Delay time
100Base-TX Command 0.0118 ms
Response (Number of words transferred × 0.0013) + 0.0118 ms
10Base-T Command 0.0157 ms
Response (Number of words transferred × 0.0019) + 0.0157 ms
Command 0.704 ms
Response (Number of words being transferred × 0.003) + 0.704 ms
CPU execution mode Processing time details
Normal Mode (See note.) One CPU Unit cycle time
Priority peripheral servicing EtherNet/IP Unit or
built-in EtherNet/IP
port is given prior-
ity.
Time slice instruction execution
time
EtherNet/IP Unit or
built-in EtherNet/IP
port is not given
priority.
One CPU Unit cycle time
Parallel processing with syn-
chronous memory access
One CPU Unit cycle time
Parallel processing with asyn-
chronous memory access
0.2 ms + peripheral servicing time (1 ms max. for
peripheral servicing of each Special I/O Unit, CPU
Bus Unit, peripheral port, RS-232C port, and Inner
Board)
CPU execution mode Processing time details
Normal Mode (See note.) 4% of CPU Unit cycle time
(10% for CJ2 CPU Units)
Priority peripheral servicing EtherNet/IP Unit or
built-in EtherNet/IP
port is given prior-
ity.
Time slice peripheral servicing
execution time
EtherNet/IP Unit or
built-in EtherNet/IP
port is not given
priority.
Set peripheral servicing time
(Default: 4% of CPU Unit cycle
time)
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