Assign Extension Modules; Settings - Siemens RMB795B Basic Documentation

Selection
Activation and
assignment
Configuration
Fault status messages
Siemens
Building Technologies
5.3.2

Assign extension modules

The number of inputs and outputs of the RMB795B central control unit can be
increased by attaching extension modules.
Each central control unit RMB795B can be connected to these modules:
Number Type Purpose
1 RMZ785 Extension of inputs with 8 universal inputs.
2 RMZ787 Extension of inputs and outputs by 4 universal inputs each
and 4 relay outputs each
The extension modules are activated simply by attaching them to the RMB795B
central control unit. The positions of the extension modules must be set on the
central control unit.
Example showing the assignment of positions:
RMB795B RMZ785
Position 1
Observe the following notes in connection with the extension modules:
• Prior to attaching an extension module, the system must be disconnected from
power
• Free configuration can also contain connections to the extension modules. The
relevant functions are only active if the respective extension module has been
connected and activated
• The extension modules can be arranged in any order desired
5.3.3

Settings

Main menu > Commissioning > Basic configuration
Operating line
Basic type
Position 1
Position 2
Position 3
A fault status message will be generated in the following cases:
• If the extension modules actually fitted and their positions do not agree with the
values entered on the list of the central control unit
• If, during operation, an extension module becomes defective
No. Name
7101 Fault extension
module
Central control unit RMB795B
Commissioning
RMZ787(1)
Position 2
Adjustable values / remarks
B
---, RMZ785, RMZ787(1), RMZ787(2)
---, RMZ785, RMZ787(1), RMZ787(2)
---, RMZ785, RMZ787(1), RMZ787(2)
Effect
Urgent message; must be acknowledged.
RMZ787(2)
Position 3
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CE1P3122en
18.01.2012