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Message Service Transmission Delay
Section 10-5
For details, refer to the CPU Unit’s Operation Manual.
CPU Bus Unit Service
Processing Time (Local
Node)
The following table shows the CPU Bus Unit service processing time, 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.
Send Processing
(Number of words being transferred
×
0.002) + 0.550 ms
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
(Number of words being transferred
×
0.003) + 0.704 ms
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 execution mode
Processing time details
Normal Mode (See note.)
Set peripheral servicing time
Default: 4% of CPU Unit cycle time
(10% for CJ2 CPU Units)
Priority peripheral servicing
Parallel processing with syn-
chronous memory access
Parallel processing with asyn-
chronous memory access
1 ms max.
Baud rate
Delay time
100Base-TX
(Number of words being transferred
×
0.0013) + 0.0118 ms
10Base-T
(Number of words being transferred
×
0.0019) + 0.0157 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)
Содержание CJ2H-CPU6 - REV 02-2010
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Страница 38: ...12 Network Configurator Overview Section 1 5...
Страница 58: ...32 Selecting the Network Devices Section 2 3...
Страница 116: ...90 Auxiliary Area Data Section 4 5...
Страница 222: ...196 Message Communications Errors Section 7 6...
Страница 364: ...338 Using the Backup Tool Section 13 3...
Страница 402: ...376 CS CJ series Ethernet Unit Function Comparison Appendix A...
Страница 404: ...378 Ethernet Network Parameters Appendix B...
Страница 406: ...380 TCP Status Transitions Appendix C...
Страница 452: ...426 Precautions for Using Windows XP Vista or Windows 7 Appendix G...
Страница 460: ...434 Index...
Страница 462: ...436 Revision History...
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