Dräger REGARD 3000 Mode D'emploi page 184

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en
Annex
Abbreviation
LNAK
LPAK
NAK
NaN
NC
NO
NOP
PLC
SCADA
SFR
SIL
SSR
184
Explanation
Latching and non-acknowledgeable relay
Configurable behaviour of a relay output.
Latching and non-acknowledgeable but pre-acknowledgeable
relay
Configurable behaviour of a relay output.
Non-latching and non-acknowledgeable relay
Configurable behaviour of a relay output.
Not a Number
An undefined or undisplayable value.
Normally Closed, closed in normal state
Type of usage of a relay contact.
Normally Open, open in normal state
Type of usage of a relay contact.
No Operation
A channel with a NOP channel ID is inactive and is not dis-
played.
Programmable Logic Controller
Supervisory Control and Data Acquisition
System Fault Relay
Safety Integrity Level, (safety requirement level according to
IEC 61508 and/or EN 50402).
Special State Relay
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Instructions for use
REGARD 3000