Changelock Function Chnglck - ABB RES670 Technical Manual

Section 21
Security
21.6
21.6.1
21.6.2
21.6.3
21.6.4
758

ChangeLock function CHNGLCK

Functionality
Change lock function CHNGLCK is used to block further changes to the IED
configuration and settings once the commissioning is complete. The purpose is to
block inadvertent IED configuration changes beyond a certain point in time.
The change lock function activation is normally connected to a binary input.
Function block
CHNGLCK
LOCK* ACTIVE
OVERRIDE
IEC09000946.vsd
IEC09000946 V2 EN-US
Figure 292: CHNGLCK function block
Signals
Table 585: CHNGLCK Input signals
Name Type
LOCK BOOLEAN
Table 586: CHNGLCK Output signals
Name Type
ACTIVE BOOLEAN
OVERRIDE BOOLEAN
Operation principle
The Change lock function (CHNGLCK) is configured using ACT.
Default Description
0 Activate change lock
Description
Change lock active
Change lock override
Phasor measurement unit RES670 2.2 ANSI
1MRK 511 408-UUS A
GUID-E8A1C33A-DD65-42B5-BA13-CFAE40C2C9AD v2
GUID-00784FC0-B39D-462D-854B-AAF62626DD0A v3
GUID-15AA1D42-912E-4085-8166-33FDC327CEB5 v2
GUID-1B253577-C81B-40E3-B406-1F6586DCE545 v2
PID-3786-INPUTSIGNALS v6
PID-3786-OUTPUTSIGNALS v6
GUID-74581AA2-6EB4-4CFA-92DA-90FB89F9A62C v3
Technical manual