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Performance

FP-7 series Ethernet communication

Add array OPCItems as Advise from a OPC Client.
It is measured reading time from added OPCItems. Communication performance is defined as average time of ten times measurement.
This time means to read the value of a continuous area of the device.

PC specification

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OS Windows 7 Professional 64bit OS
CPU Intel(R) Core(TM) i5 CPU @3.20GHz
Memory 4.00GB
OPC Server DxpSERVER OPC Server Ver5.1.0.1
OPC Client OPCClient sample VcSampleOpc(C++)
Cable 100BASE-TX cross cable connecting directly

OPC Server setting

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Protocol Timer Tick 10msec
Timer Tick for Async Update Mode 10msec
Multi Access Mode Enable
Multi Access for Snyc Asnyc Disabled
Async Update Mode Disabled

PLC setting

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CPU FP-7
Communication unit FP-CPS4E
Register DT0-DT32767
Max scan time 0.3msec

Communication Performance

(sec)

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  1024 2048 4096 8192 16K 32K 64K 128K
Average 0.411 0.822 1.612 3.292 6.827 13.392 26.752 53.599
Max 0.424 0.844 1.644 3.366 6.934 13.659 27.295 54.256
Min 0.402 0.801 1.604 3.205 6.601 13.039 26.351 53.195

Results

In case of continuous data register(DT), it is possible to get max 2,500 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*In case of 16K points access , Read 16K points by using 2 devices.( 8K point per 1 device).
*The result only means our examination, it doesn't guarantee performance.
[Sep 2013]

FP-X series Ethernet communication

Add array OPCItems as Advise from a OPC Client.
It is measured reading time from added OPCItems. Communication performance is defined as average time of ten times measurement.
This time means to read the value of a continuous area of the device.

PC specification

* You can scroll this table sideways.

OS Windows 7 Professional 32bit OS
CPU Intel(R) Core(TM) i7 CPU 860 @2.80GHz
Memory 3.00GB
OPC Server DxpSERVER OPC Server Ver5.0.1.1
OPC Client OPCClient sample VcSampleOpc(C++)
Cable 100BASE-TX cross cable connecting directly

OPC Server setting

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Protocol Timer Tick 10msec
Timer Tick for Async Update Mode 10msec
Multi Access Mode Enable
Multi Access for Snyc Asnyc Disabled
Async Update Mode Disabled

PLC setting

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CPU FP-XC14T
Communication unit FX-XCOM5
Register DT0-DT8191
Max scan time 0.8msec

Communication Performance

(sec)

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  1024 2048 4096 8192 16K 32K 64K 128K
Average 0.934 1.772 3.437 6.796 13.426 27.036 54.344 107.755
Max 0.939 1.795 3.468 6.827 13.556 27.208 55.564 109.808
Min 0.924 1.727 3.411 6.769 13.073 26.771 52.898 104.501

Results

In case of continuous data register(DT), it is possible to get max 1,000 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*In case of 16K points access , Read 16K points by using 2 devices.( 8K point per 1 device).
*The result only means our examination, it doesn't guarantee performance.
[Aug 2012]

Interface performance

Results of measurement of each interface(eg.sync /async /datachange event etc).(detail)