Siemens RMB795B Basic Documentation page 139

faults Configuration
• Fault inputs 1 through 10
• Fault relays 1 and 2 (relays...)
Faults
Trend Configuration
• Input
Meters Configuration
• Input
Logic functions. Configuration
• Input
1 2 3 1 2
• Logic function
A B
• Operation selector
C
• Relay output
• Digital output
Heat demand Configuration
refrigeration demand
• Forwarding heat demand via
Heat demand
• Heat demand relay (relay Q)
Relay
• Heat demand modulating
Q Y
• Forwarding refrigeration demand
Refrigeration demand
Relay • Refrigeration demand relay
Q Q Y Y
• Refrig demand modulating
Siemens
Building Technologies
KNX bus
via KNX bus
(relay Q)
Central control unit RMB795B
Appendix
Function
• 10 universal fault signal inputs, fault signal delay, fault
acknowledgement (none, acknowledge, acknowledgement and
reset), fault priority (urgent, not urgent) and fault effect (stop, no stop)
can be set.
• Supervision of analog signals with regard to limit value crossings
• 2 fault status relays, priority (urgent, non-urgent, all) and source
(internal, bus) can be selected
Function
The trend is used to log the progression of signals.
• 4 independent trend channels.
• Logging of local inputs, room temperatures and outside temperature
from the bus.
• Simultaneous display of 2 channels.
• Views: 8-minutes, 8-hours, 24-hours and 6-day history.
Function
• Acquisition of pulse sources and display of cumulated values;
selectable unit, valency, presentation, etc.
Function
• 10 logic blocks, logic 1 to 10.
• Generation of digital signal from continuous input signals.
• Selectable logic for logic A, B and C.
• Selectable operation selector.
• Delay times can be set for output signal.
• Selectable time formats.
Function
Plant functions when there is demand for heat.
• Heat demand can also be transmitted via bus, (see Communication).
• Heat demand relay for passing on the heat demand
• Heat demand modulating for passing on the heat demand by means
of analog DC 0...10 V signal.
Plant functions when refrigeration is requested.
• Refrigeration demand can also be transmitted via bus, (see
Communication).
• Refrigeration demand relay for passing on the refrigeration demand.
• Refrigeration demand modulating for passing on the heat demand by
means of analog DC 0...10 V signal.
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CE1P3122en
18.01.2012