Products

Performance

OPC Server connection

This examination needs 2 OPC Servers. Our OPC Servers is used for the Client-side and another is used for the Server-side.
It is measured reading time of Server-side's Common memory. 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(Client-side)

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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

PC specification(Server-side) that is connected by Client-side PC

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OS	Windows XP Professional SP3 32bit OS
CPU	Intel(R) 4CPU @2.80GHz
Memory	2.00GB
OPC Server	DXP2007 Ver.4.2.1.6
Register	D0-D8191(Simulation mode as common memory)

Communication Performance

≪Local connection≫

(sec)

※この表は横にスクロールできます

	1024	2048	4096	8192	16K	32K	64K	128K
Average	0.014	0.014	0.014	0.014	0.014	0.030	0.060	0.124
Max	0.014	0.014	0.014	0.014	0.014	0.030	0.061	0.124
Min	0.013	0.013	0.013	0.013	0.012	0.029	0.057	0.122

≪Remote connection(DCOM)≫

(sec)

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	1024	2048	4096	8192	16K	32K	64K	128K
Average	0.014	0.014	0.014	0.014	0.014	0.029	0.061	0.124
Max	0.015	0.015	0.015	0.015	0.016	0.032	0.062	0.124
Min	0.013	0.013	0.013	0.013	0.010	0.026	0.061	0.122

Results

In case of continuous Common memory, it is possible to get max 128,000 points per 0.1 sec. And it is neary time between local connection and DCOM connection.

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.
[Aug 2012]

Interface performance

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