Operating Instructions

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Siemens Engineering Guide SOC7-128 Modbus interface SE1Z5996en7
Building Technologies 3 Connection and Configuration 2015-08-26
3 Connection and Configuration
3.1 The system
The SOC7 is a system for monitoring and surveillance of fire dampers and smoke
detectors. The system consist of the control unit SOC7-128, the multibox SOC7-M2
and the relay unit SOC7-R1. The control unit can handle up to 64 multiboxes and each
multibox can handle 2 dampers and smoke detectors. The relay unit has one relay for
interlocking of the supply fan.
The system can be divided in up to 10 fire groups. The control unit automatically tests
the dampers with a user defined frequency. The damper test can also be initiated via
the modbus master and then if needed divided into several “testgroups” since there is a
possibility to choose test of individual multiboxes, groups or the whole system via
modbus commands.
It is also possible, when integrated via modbus, to interlock individual multiboxes or
groups which gives the opportunity to create user zones in the master device. These
zone can be interlocked e.g. via time schedulers during non-office hours. See also the
example configuration below.