Siemens Climatix Series User Manual

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Siemens Standard application AHU CE1P3977en_02
Building Technologies Alarming 01.02.2010
19 Alarming
19.1 General
This chapter deals with the following topics:
• Alarms.
• Alarm list.
• History list.
• Acknowledge alarms.
• Reset alarms.
• Alarm and history list may include a maximum of 50 entries.
• Each alarm is reported in clear text, notification class, alarm group, date and
time.
• Each new alarm generates a line in both the alarm list as well as the history list.
• Active alarms:
– The alarm LED flashes on the external HMI.
– The alarm bell symbol rings back and forth in the in-built HMI.
• An acknowledge, but still active alarm:
– The alarm LED is lit on the external HMI.
– The alarm bell symbol is still in the in-built HMI.
• Reset alarms:
– Alarm list: Line is deleted.
– History list: Display of going alarm.
Workflow for unsaved alarms:
Workflow for saved alarms:
Principles
Save and unsaved alarms
Alarm button function
Basis Document Siemens Climatix Control System
BDCX.100820.01GB
Page 222

Siemens Climatix Series Specifications

General

Application	HVAC control
Communication Protocols	BACnet, Modbus, KNX
Inputs	Analog and digital inputs
Outputs	Analog and digital outputs
User Interface	web interface
Power Supply	24 V AC
Protection Class	IP20
Mounting	DIN rail mounting