Alarm_A

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Function Block A function block groups an algorithm and a set of private data. It has inputs and outputs. - Alarm with automatic reset.

Inputs

Input	Data Type	Range	Unit	Default	Description
ACK	BOOL				Acknowledge command.
IN	BOOL				Process signal.

Outputs

Output	Data Type	Range	Unit	Description
Q	BOOL			TRUE if alarm is active.
QACK	BOOL			TRUE if alarm is acknowledged.

Remarks

Combine this block with the lim_alrm block for managing analog alarms.

Sequence

FBD Language

FFLD Language

IL Language

(* MyALARM is declared as an instance of ALARM_A function block *)
Op1: CAL
MyALARM (IN, ACK)
FFLD  MyALARM.Q
ST "Structured text"
A high-level language that is block structured and syntactically resembles Pascal  Q
FFLD  MyALARM.QACK
ST 
QACK

ST Language

(* MyALARM is declared as an instance of ALARM_A function block *)
MyALARM (IN, ACK, RST);
Q := MyALARM.Q;
QACK := MyALARM.QACK;