Description of the TwinCAT-OPC-Server XML configuration

Name

Req

Name for device like "PLC1". OPC-Client browse this name.

Description

Optional

AdsPort

Req

Number of ADS-PortID, like 801 for first PLC-runtime system.

AdsNetId

Optional

specific ADS-NetId, like "174.12.15.45.1.1"

If not specified or like "0.0.0.0.0.0", the OPC-Server will always communicate to AdsNetId of local ADS-router.

AdsTimeout

Optional

ADS timeout in ms for this ADS device

AdsTimeSuspend

Optional

ADS suspend time in ms for this ADS device, if the ads communication fails.

AutoCfg

Optional

0 : do not include symbol-file defined under <AutoCfgSymFile>
1 : Include sym-file of TwinCAT-PLC defined under <AutoCfgSymFile>
2 : Include sym-file of TwinCAT-BCxxxx-project defined under <AutoCfgSymFile>
5 : Upload symbolic from ADS-device
7 : Include tpy-file of TwinCAT28-project defined under <AutoCfgSymFile>

8 : Include tpy-file of TwinCAT28-project defined under <AutoCfgSymFile>, but import only symbols with symbol-property "OPC=1"

AutoCfgSymFile

Optional

full path and name of symbol-file to be included like
"C:\Test\demo.sym" or "\\User1\Test\demo.sym" or "C:\User1\Test\demo.tpy"

SignalID

Req

unique ID-number which identifies this simulation-signal

SignalDesc

Optional

SignalType

Req

0 : Read Count

1 : Write Count
2 : Random
3 : Ramp
4 : Sine
5 : Square
6 : Triangle
7 : Step
8 : Reserver
9 : Step

Read Count : incremented by one every time when the item is read

Write Count : incremented by one every time when the item is written

Random: generates random value within the Amplitude range starting with Position

Ramp, Sine, Square, Triangle, Step: (periodical signals) Their time behavior is influenced by Period and Phase parameters. Period specifies the signal frequency, while Phase moves the signal origin on the time axis

Square and Triangle signal types have one more parameter: Ratio. Ratio defines Triangle signal steepness, or Square signal H/L proportions. NumSteps parameter of the Step signal defines a number of steps signal amplitude will be divided into.

NumSteps

Optional, depends on <SignalType>

Amplitude

Optional, depends on <SignalType>

Period

Optional, depends on <SignalType>

Phase

Optional, depends on <SignalType>

Position

Optional, depends on <SignalType>

Ratio

Optional, depends on <SignalType>

ConversionID

Req

unique ID-number which identifies this conversion

ConversionDesc

Optional

ConversionType

Req

0 : NoConversion
1 : LinearConversion

Clamping

Optional

0 : No clamping

1 : Clamp on EU
2 : Clamp as specified

If clamping is active, the data value will be limited to its High clamp/EU value, when it exceeds the upper limit, and similarly with Low clamp parameter.

HighClamp

Optional, depends on <ConversionType>/<Clamping>

1.0 (Default)

LowClamp

Optional, depends on <ConversionType>/<Clamping>

0.0 (Default)

HighEU

Optional, depends on <ConversionType>/<Clamping>

engineering unit (client scale)

1.0 (Default)

LowEU

Optional, depends on <ConversionType>/<Clamping>

engineering unit (client scale)

0.0 (Default)

HighIR

Optional, depends on <ConversionType>/<Clamping>

instrument range (device scale)

10000 (Default)

LowIR

Optional, depends on <ConversionType>/<Clamping>

instrument range (device scale)

0 (Default)