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Performance

DataMan MODBUS/TCP 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 7 Professional 64bit OS
CPU Intel(R) Core(TM) i7 CPU 870 @2.93GHz
Memory 8.00GB
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 DM200
Register DT400001-DT43024

Communication Performance

(sec)

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  64 128 256 512 1024 2048 4096 8192
Average 0.011 0.020 0.030 0.051 0.092 0.184 0.368 0.735
Max 0.013 0.021 0.031 0.053 0.094 0.187 0.372 0.740
Min 0.010 0.020 0.030 0.050 0.090 0.182 0.364 0.725

Results

In case of continuous memory, it is possible to get max 10,000 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*The result only means our examination, it doesn't guarantee performance.
[Aug 2012]

Delta MODBUS/TCP 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 7 Professional 64bit OS
CPU Intel(R) Core(TM) i5 CPU @3.20GHz
Memory 4.00GB
OPC Server DxpSERVER OPC Server Ver5.1.0.1
OPC Client OPCClient sample VcSampleOpc(C++)
Cable RS232 Serial bus Cable

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 DVP28SV
Communication unit DVPEN01
Register 436865-440961

Communication Performance

(sec)

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  64 128 256 512 1024 2048 4096 8192
Average 0.027 0.052 0.103 0.205 0.428 0.721 1.439 2.868
Max 0.047 0.088 0.163 0.262 0.448 0.728 1.452 2.879
Min 0.021 0.044 0.087 0.177 0.357 0.717 1.433 2.863

Results

In case of continuous memory, it is possible to get max 2,500 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*The result only means our examination, it doesn't guarantee performance.
[Sep 2013]

Delta MODBUS/Serial 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 7 Professional 64bit OS
CPU Intel(R) Core(TM) i5 CPU @3.20GHz
Memory 4.00GB
OPC Server DxpSERVER OPC Server Ver5.1.0.1
OPC Client OPCClient sample VcSampleOpc(C++)
Cable RS232 Serial bus Cable

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 DVP28SV
Communication unit DVPEN01
Register 436865-440961

Communication Performance

(sec)

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  64 128 256 512 1024 2048 4096 8192
Average 0.738 1.459 3.096 6.128 12.346 24.682 49.323 99.000
Max 0.754 1.517 3.096 6.128 12.346 24.682 49.323 99.000
Min 0.699 1.263 3.083 6.066 12.330 24.661 49.323 99.000

Results

In case of continuous memory, it is possible to get max 100 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*The result only means our examination, it doesn't guarantee performance.
[Sep 2013]

Moxa Switching Hub MODBUS/TCP 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 7 Professional 64bit OS
CPU Intel(R) Core(TM) i7 CPU 870 @3.20GHz
Memory 4.00GB
OPC Server DxpSERVER OPC Server Ver5.2.0.1
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

Setting

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Unit EDS-408A
Register 400001~404097

Communication Performance

(sec)

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  64 128 256 512 1024 2048 4096 8192
Average 0.021 0.051 0.098 0.227 0.910 2.721 9.164 33.598
Max 0.030 0.059 0.117 0.318 0.996 2.820 9.417 33.990
Min 0.014 0.042 0.085 0.204 0.804 2.597 8.826 33.221

Results

In case of continuous memory, it is possible to get max 4,000 points per sec.

Comment

*Graph displays average time of ten times measurement.(1point = 1word)
*The result only means our examination, it doesn't guarantee performance.
[Sep 2014]

MODBUS/TCP 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 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 Q02HCPU
Communication unit QJ71MT91
Register 400001-408192(D0-D8191)
Max scan time 0.4msec

Communication Performance

(sec)

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  1024 2048 4096 8192 16K 32K 64K 128K
Average 0.134 0.272 0.533 1.041 2.087 4.155 8.399 16.728
Max 0.151 0.282 0.643 1.069 2.141 4.311 8.504 16.843
Min 0.130 0.251 0.451 0.989 2.033 4.081 8.312 16.618

Results

In case of continuous Data Register(D), it is possible to get max 8,000 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]

Interface performance

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