P44x/EN AD/E44 Update Documentation
Page 66/82
MiCOM P441, P442 & P444
Bit-Pair Value Represents
00 A transitional or unknown state
01 A logical 0 or OFF state
10 A logical 1 or ON state
11 An invalid state
The PACT common class splits the contents of a UCA2.0 GOOSE message into two main
parts; 32 DNA bit-pairs and 64 User Status bit-pairs.
The DNA bit-pairs are intended to carry GOMSFE defined protection scheme information,
where supported by the device. MiCOM Px40 implementation provides full end-user
flexibility, as it is possible to assign any Digital Data Bus signal to any of the 32 DNA bit-
pairs. The User Status bit pairs are intended to carry all ‘user-defined’ state and control
information. As with the DNA, it is possible to assign any Digital Data Bus signal to these bit-
pairs.
To ensure full compatibility with third party UCA2.0 GOOSE enabled products, it is
recommended that the DNA bit-pair assignments are as per the definition given in GOMFSE.
Send GOOSE configuration settings to an IED
1. Open a connection to the required device by selecting Open Connection from the
Device menu. Refer to Section 2.1.1.6 & 2.1.1.7 for details on configuring the IED
communication settings.
2. Enter the device address in the Establish Connection dialogue box.
3. Enter the relay password.
4. Send the current GOOSE configuration settings to the device by selecting Send to
Relay from the Device menu.
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