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AVEVA™ Plant SCADA

Miscellaneous 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.

Parameter

Allowable values

Default value

Description

[DNPR]
ResponseModeDefault

[<unit>]ResponseMode

0 to 15

11

(Polled,
Unsolicited enabled,
Perform time synch when requested)

Default response mode, composed from a combination of:

1 = Polled
(Must be set to enable device polling for event class data)

2 = Unsolicited enabled
(Must be set to enable unsolicited value updates)

4 = Use Delay Measurement
(By default, the driver will use the Record Current Time command (Function Code 24) when performing time synchronization. When this bit is set, it will use Delay Measurement command (Function Code 23))

8 = perform time synch when requested
(When set, the driver performs time synchronization after receiving IIN1.4 bit from the device)

In the case where "Use Delay Measurement" is selected, then the parameter [DNPR]ReqDelay should also be set.

[DNPR]StartupDelay

0 to ‘WatchTime’ (seconds)

0

Allows the unit initialization (and subsequent online check) to be delayed.

This Citect.ini parameter can be used, in conjunction with a Cicode IODeviceControl() call at start-up to disable units before they transmit an online check for unit initialization.

A delay of a couple of seconds should suffice. Do not delay more than the setting for WatchTime.

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