Products

Performance

KV-7500 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 10 Professional 64bit OS
CPU	Intel(R) Core(TM) i7-6700CPU @3.40GHz
Memory	8.00GB
OPC Server	DxpSERVER OPC Server Ver5.3.2.1
OPC Client	OPCClient sample RCWClient(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
Communication per Client	Disabled
Multi Access for Snyc Asnyc	Disabled

PLC setting

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CPU	KV-7500
PORT	CPU Built-in Ethernet Port
Register	DM0-DM16383
Max scan time	0.031msec

Communication Performance

(sec)

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	1024	2048	4096	8192	16K	32K	64K	128K
Average	0.006	0.012	0.024	0.055	0.111	0.210	0.441	0.873
Max	0.008	0.013	0.032	0.067	0.143	0.228	0.481	0.914
Min	0.006	0.011	0.022	0.045	0.089	0.188	0.415	0.835

Results

In case of continuous data memory(DM), it is possible to get max more than 128,000 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*In case of 32K points access , Read 32K points by using 2 devices.( 16K point per 1 device).
*The result only means our examination, it doesn't guarantee performance.
[Sep 2017]

KV-5000 series Ethernet communication

PC specification

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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	KV-5000
Register	DM0-DM16383
Max scan time	0.27msec

Communication Performance

(sec)

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	1024	2048	4096	8192	16K	32K	64K	128K
Average	0.048	0.048	0.097	0.180	0.356	0.658	1.319	2.620
Max	0.048	0.051	0.099	0.199	0.404	0.690	1.384	2.643
Min	0.047	0.045	0.092	0.140	0.338	0.628	1.283	2.556

Results

In case of continuous data memory(DM), it is possible to get max 45,000 points per sec.

Comment

Interface performance

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