ABB REL 551-C1*2.5, Technical Reference Manual

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Indications Chapter 8
Monitoring
2 Indications
2.1 Application
Use the indications list to view the state of binary signals during the fault. All binary input sig-
nals to the disturbance report function are listed.
2.2 Functionality
The indications list tracks zero-to-one changes of binary signals during the fault period of the
collection window. This means that constant logic zero, constant logic one or state changes from
logic one to logic zero will not be visible in the indications list. Signals are not time tagged. In
order to be listed in the indications list the:
1. signal must be connected to the DRP function blocks, (DRP1, DRP2, DRP3).
2. setting parameter, IndicationMask, for the input must be set to Show.
Output signals of other function blocks of the configuration will be listed by the signal name list-
ed in the corresponding signal list. Binary input signals are listed by the name defined in the con-
figuration.
The indications can be viewed on the local HMI and via SMS.