JTEKT TOYOPUC Performance

TOYOPUC-PC10 series Ethernet connection

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

Genuine Intel(R) CPU T250 2.00GHz
Windows XP Professional / SP2
DeviceXPlorer OPC Server Ver4.0
OPC Client - Visual Basic 6.0
UpdateInterval - 1ms

PLC setting

PC10G
CPU Built-in Ethernet(100BASE-TX）
Max scan time: < 10msec

Communication Performance

(sec)

	1024	2048	4096	8192	16K	32K	64K	128K
Average	0.054	0.105	0.231	0.421	0.863	1.455	2.713	5.313
Max	0.056	0.112	0.222	0.434	0.881	1.475	2.747	5.378
Min	0.050	0.103	0.203	0.400	0.841	1.422	2.666	5.250

Results

In case of continuous Data register(D), it is possible to get max 20,000 points per sec.

Comment

*Graph displays average time of fifty 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.

[Apr 2008]