ALPHA-VISION® API-Interface to Technology program: FC151

FC151

SUMMARY

The AbvSpu provides functions to read and write process attributes (Status, measuring value, alarm information) as well as to control process parameters (limits, delay times, etc.).

PARAMETERS (IN)

obj (INT)

Object Number

PARAMETERS (OUT)

yAt (BYTE)

Alarm Typ

PARAMETERS (IN_OUT)

DESCRIPTION

GetAT() - Alarm Typ
Returns the Alarm Type of the actual status of a Measuring Point.

The function is defined for analogue measuring points only.

• For binary Measuring Points always the Alarm Type ‘0’ is returned.
• For objects of the type ‘Process Variables’ <yAt=0> is returned.

The Alarm Type is calculated from the Alarm Level of the actual status, whereby it is distinguished between the direction of the alarm (alarm up / normal down, respectively alarm down / normal up).
The Alarm Type is calculated according the following table:

Level	Direction	Alarm Type
0	down / up	0
1	down	0
2	down	3
3	down	5
4	down	11
5	down	9
1	up	0
2	up	2
3	up	4
4	up	10
5	up	8