User Manual

31
Siemens Building Technologies
Cerberus Division
e1143b
06.2000
5 Special commands from FSS
The FSS can set the date and time on the FHI Pad using the special command 0,1.
The structure of this command is shown in the table below.
Byte Name Content Format
0 Type 80 hexadecimal
1 Unused FF hexadecimal
2 FF hexadecimal
3 Command number 00 hexadecimal
4 00 hexadecimal
5 Block number 01 hexadecimal
6 00 hexadecimal
7 Date (year) YY BCD
8 Date (month) MM BCD
9 Date (day) DD BCD
10 Time (hour) hh BCD
11 Time (minutes) mm BCD
12 Time (seconds) ss BCD
13 Unused 00 hexadecimal
14 Unused 00 hexadecimal
15 Unused 00 hexadecimal
6 Interactions
Two kinds of interaction are available
- from a control panel (mainly Cerban Subsystem) to the FSS.
- from the FSS to a control panel (mainly Cerban Subsystem).
6.1 From a control panel to the FSS.
This feature is managed by the Subsystem Pads installed on the Gateway to which the
control panel that triggers the interaction is connected.
On these boards both firmware and a management table are present and the interac-
tion is decided at Subsystem pad level. A message is issued to the FHI Pad and on re-
ceipt of it the FHI Pad sends a command to the FSS using the Cerberus Standard pro-
tocol format.
6.2 From the FSS to a control panel
In these interactions the FHI Pad acts just as a translator.
The FSS issues a command to the FHI Pad using the Cerberus Standard protocol.
Upon receipt the FHI Pad translates it into the corresponding command in Cerban
protocol format.
These commands deal mainly with the Technical Digital Outputs of fire control panel
(CZ10).