Siemens FST020 - Alarm Class; NAMUR Status Signal; Polarity

Setup
3.4 Inputs and outputs
FST020 Function manual
Function Manual, 09/2017, A5E42949526-AA
79
3.4.3.13
Alarm class
Description
Selection of alarm classes which impact the status output. Each diagnostic event is allocated
to an alarm class. Applicable if Status mode = Alarm class and Status icons = Standard.
Bit 0: Process value alarm (PA)
Bit 1: Process value warning (PW)
Bit 2: Maintenance alarm (MA)
Bit 3: Maintenance warning (MW)
Bit 4: Maintenance required (MR)
Bit 5: Function check (FC)
Setting Maintenance alarm; Function check; Process value alarm; Process value warning; Mainte-
nance demanded; Maintenance required; None
Default
Related
Path
Setup → Inputs and outputs → Channel 3 - relay → Alarm class
3.4.3.14
NAMUR status signal
Description
Selection of NAMUR status signals which impact the status output. Each diagnostic event is
allocated to a NAMUR status signal. Application if Status mode = Alarm class and Status
icons = NAMUR
Setting
Failure; Function Check; Out of specification; Maintenance Required
Default
None
Related
Path
Setup → Inputs and outputs → Channel 3 - relay → NAMUR status signal
3.4.3.15
Polarity
Description
Logical polarity of status output.
Setting
Active high level; Active low level
Default
Active high level
Related
Path
Setup → Inputs and outputs → Channel 3 - relay → Polarity