Honeywell R0512 manual Alarm Status V2.04.xx or higher, Alarm Type, Alarm Definition

ATTRIBUTES EXCEL 50/100/500/600/800

DI in

“Active State”

DI in

“Passive State”

Fig. 6. Alarm status messaging

NOTE: The active state and passive state are defined in the "Active State" datapoint attribute.

Alarm Status (V2.04.xx or higher)

Alarm monitoring In the case of a digital input or a pseudo digital point, the attribute "Alarm Status" specifies whether or not alarm monitoring is required.

The following entries are possible:

•Yes: Alarm monitoring is required

•No: Alarm monitoring is not required

When alarm monitoring is required, the alarm message occurs depending on the physical contact status and on the logical status as defined in the online attribute “Normally Open/Normally Closed”.

Alarm Type

The attributes listed in Table 5 are capable not only of generating alarms, but also of writing them to the internal alarm memory and sending them to the PC front-end or to the modem module (when connected).

Table 5. Alarm attributes

attribute	always critical	optional critical or non-critical
Operating Mode	X
Min. Limit		X
Max. Limit		X
Maintenance		X
Alarm
Interval Counter		X
Alarm Status		X

Changing over the attribute "Operating Mode" always results in a critical alarm, but the attribute "Alarm Type" offers a choice for the alarm attributes "Min. Limit", "Max. Limit", "Maintenance Alarm", "Totalizer", and "Alarm Status" whether an alarm is classified as critical or non-critical. Distinguishing between critical and non-critical alarms is significant for the subsequent reporting of the alarms to the PC front-end or to the modem module. Compared to non-critical alarms, critical alarms are given priority on the bus when several alarms are in the alarm queue. When the type of alarm for a datapoint has been decided, e.g. "critical" alarm type, it refers to all alarm attributes for this datapoint.

Alarm Definition

EN2B-0092GE51 R0512 16