Products

  1. TOP
  2. Products
  3. DeviceXPlorer OPC Server
  4. Support PLCs
  5. OPCDA
  6. Performance

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)

* 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

* You can scroll this table sideways.

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

* You can scroll this table sideways.

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)

* You can scroll this table sideways.

  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)