Function Block; Signals; Settings; Operation Principle - Hitachi Relion 650 Series Technical Manual

Section 11
Logic
11.2.3

Function block

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Figure 73:
11.2.4

Signals

Table 136: FXDSIGN Output signals
Name
OFF
ON
INTZERO
INTONE
INTALONE
REALZERO
STRNULL
ZEROSMPL
GRP_OFF
11.2.5

Settings

The function does not have any settings available in Local HMI or Protection and Control IED
Manager (PCM600).
11.2.6

Operation principle

There are nine outputs from FXDSIGN function block:
• OFF is a boolean signal, fixed to OFF (boolean 0) value
• ON is a boolean signal, fixed to ON (boolean 1) value
• INTZERO is an integer number, fixed to integer value 0
• INTONE is an integer number, fixed to integer value 1
• INTALONE is an integer value FFFF (hex)
• REALZERO is a floating point real number, fixed to 0.0 value
• STRNULL is a string, fixed to an empty string (null) value
• ZEROSMPL is the channel index of an analog signal, fixed to 0 value
• GRP_OFF is a group signal, fixed to 0 value
136
FXDSIGN
OFF
ON
INTZERO
INTONE
INTALONE
REALZERO
STRNULL
ZEROSMPL
GRP_OFF
IEC09000037.vsd
FXDSIGN function block
Type
BOOLEAN
BOOLEAN
INTEGER
INTEGER
INTEGER
REAL
STRING
GROUP SIGNAL
GROUP SIGNAL
© 2021 Hitachi Energy. All rights reserved.
Description
Boolean signal fixed off
Boolean signal fixed on
Integer signal fixed zero
Integer signal fixed one
Integer signal fixed all ones
Real signal fixed zero
String signal with no characters
Channel id for zero sample
Group signal fixed off
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