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AVEVA™ Plant SCADA

Write Parameters

  • Last UpdatedAug 04, 2025
  • 2 minute read

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UNINTENDED EQUIPMENT OPERATION

Do not change these protocol parameters, except on the advice of Technical Support for this product.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

Note: At times during the life cycle of a driver, circumstances may call for the creation of specific citect.ini parameters that remain undocumented. Always seek the advice of Technical Support regarding the possible implementation of undocumented parameters before you make any changes to a citect.ini file.

[IEC870IP] Parameter

Description

Allowable Values

Default Value

AppTimeoutMs

Sets the application-level timeout for the device. This is used for a select confirmation after a control select has been issued.

Note: You can set this parameter for every device connected to a specific port.

See Port-specific Parameters.

0-32767
(milliseconds)

4000

DefaultSetPtType

Determines if the value of the set point defaults to:
• "normalized value" ("NORM"), or
• "scaled value" ("SCALE").

Note: You can modify this parameter for an individual output point in the IOA configuration file.

Determines the file name and path of the configuration file containing individual IOA parameters.

See Configuring Commands for Individual IOAs.

"NORM" or "SCALE"

"NORM"

DefaultSEMode

Determines if the output should default to:
• "direct execute" (0), or
• "select/execute" (1).

Note: You can modify this parameter for an individual output point in the IOA configuration file.

Determines the file name and path of the configuration file containing individual IOA parameters.

See Configuring Commands for Individual IOAs.

0 or 1

0

DefaultDOQual

Sets the default value of output qualifier for digital control.

Note: You can modify this parameter for an individual output point in the IOA configuration file.

Determines the file name and path of the configuration file containing individual IOA parameters.

See Configuring Commands for Individual IOAs.

0 – Digital controls default to "no additional definition".

1 – Digital controls default to "short duration pulse".

2 – Digital controls default to "long duration pulse".

3 – Digital controls default to "persistent output".

0

IOAConfigFileName

Determines the file name and path of the configuration file containing individual IOA parameters.

See Configuring Commands for Individual IOAs.

Any valid path

Plant SCADA\bin

UseIOAConfigFile

Determines whether the IOA configuration file is used.

If set to zero (0), the file will not be used.

See Configuring Commands for Individual IOAs.

0 or 1

0

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