Room Operating Mode Outputs - Siemens RMB795B Basic Documentation

Troubleshooting
Fault status messages
Priorities
Purpose
Possible application
Key
Siemens
Building Technologies
When handling errors, a differentiation is made between the 2 following cases:
Only one master may be set per holiday / special day zone (see Sec. 13.2.2 "Room
group 1...10).
If several devices are set as masters, a fault status message occurs. The device,
that receives two holiday/special day signals, sends the message.
If the RMB795B central control unit expects a holidays/special day signal from the
bus and it is not communicated, the following fault status message is sent:
"Hol/spec day program failure".
In both cases, the operating modes of the 7-day program are used, without giving
consideration to the holiday / special day entries.
No. Text
5201 Hol/spec day prog room group
1
... ...
5291 Hol/spec day prog room group
10
5202 >1 hol/spec day prog R'grp. 1
... ...
5292 >1 hol/spec day prog R'grp. 10
When evaluating the priority in the holidays / special day program, only the first 2
entries are taken into consideration. If more than two overlapping entries are made,
the special day may no longer have priority over the holidays.
8.3.7

Room operating mode outputs

Outputs Relays 1 / 2" (operating mode relays) at the function block make it
possible to feed the resulting room operating mode of the respective room group to
2 relays Qx of the RMB795B central control unit.
Forwarding the resulting room operating mode from the Qx relay outputs of the
central control unit to a Synco™200 controller:
G
G Qx3 Qx3
G0 Qx4 Qx4
G0
N1: RMB795B
N2: Synco™200 RLU2...
Central control unit RMB795B
Function block: "Room group"
Effect
Non urgent message; must not be
acknowledged.
...
Ditto
Non-urgent message; must be
acknowledged.
...
Ditto
G M D1 M
G0
N1
D2
N2
CE1P3122en
18.01.2012
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