User Manual

45
Fire & Security Products
Siemens Building Technologies Group
1964_a_en_--.doc
07.2001
5.7.7 Structure 1521: Digital manual callpoint element
Abstract representation of digital transmitters (contacts, etc.) whose binary states are
translated into danger levels and which are used as manual callpoints:
Log. 0 = Danger level 0
Log. 1 = Danger level 3
1521: Addressing
Sector: FIRE
ADF1/2: Based on sequence number
1521: Valid states
State Description Valid commands
NORMAL
The element is in the ON state (connected into the circuit). Incom-
ing danger levels are transmitted to the higher ranking zone.
OFF
ACTIVE
The affiliated transmitter has reached a danger level > 3. OFF
TEST ALARM
The higher ranking zone is in the TEST state and a danger level 3
has been detected.
OFF
OFF
Incoming information (danger levels, faults) is not processed. ON
NOT READY
After the element has been reset or switched on a pending danger
level (push button engaged) was detected.
ACKNOWLEDGE
OFF
FAULTY
Correct operation of the detector is no longer assured. Causes:
Fatal fault (interruption, short circuit, HW)
ACKNOWLEDGE
OFF
1521: State transition diagram
To
From
ACTIVE OFF TEST ALARM
ZONE = TEST
NOT READY FAULTY NORMAL
ACTIVE
---
 Off
--------------
Q 67 56
--- ---
 Active &
Faulty
--------------
U 67 46
 ZoneReset &
Danger = 0
--------------
N 67 3C
OFF
--- --- ---
 On &
Not ready
--------------
U 67 5F
 On &
Faulty
--------------
U 67 46
 On
--------------
N 67 3C
TEST ALARM
ZONE = TEST
---
 Off
--------------
Q 67 56
--- --- ---
 TestAlarm
-------------
N 67 3C
NOT READY
---
 Off
--------------
Q 67 56
--- --- ---
 Danger = 0
-----------------
N 67 3C
FAULTY
---
 Off
--------------
Q 67 56
--- --- ---
 Faulty
-------------
N 67 3C
NORMAL  Danger = 3
---------------
Q 67 4F
 Off
--------------
Q 67 56
 Danger = 3
--------------
Q 67 0B
 N.ready
--------------
U 67 5F
 Faulty
--------------
U 67 46
---