PANASONIC FP Performance

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

OS:
    Windows 7 Professional  32bit OS
CPU：
    Intel(R) Core(TM) i7 CPU 860 @2.80GHz
Memory：3.00GB
OPC Server：
    DeviceXPlorer OPC Server Ver4.2.0.2
OPC Client：
    OPCClient sample VcSampleOpc(C++)
Cable：
    100BASE-TX cross cable connecting directly

OPC Server setting

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

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

Communication Performance

(sec)

	1024	2048	4096	8192	16K	32K	64K	128K
Average	0.902	1.859	3.502	7.070	14.131	28.246	56.519	113.002
Max	0.905	1.887	3.557	7.176	14.243	28.407	56.738	113.147
Min	0.874	1.841	3.447	6.988	13.965	28.158	56.363	112.742

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.

[Jun 2010]