General Characteristics
In connection with the function blocks, the SIEMENS RMS705B complements the range of Synco700 products as a freely configurable unit for control and supervisory functions in heating, ventilation and refrigeration plant non-standard applications and, for this reason, offers no predefined standard applications.
The RMS705B is especially suited for the following functions:
- Connection of additional universal alarm inputs
- Adding free inputs for display and supervision
- Event logging (e.g. legionella function)
- Additional time programs (ON/OFF) for basic functions
- Maximum and minimum selection
- Calculation of average
- Calculation of enthalpy, enthalpy differential, absolute humidity, dewpoint and wet bulb temperature
- Logic function blocks for switching on/off depending on different conditions
- Lead/lag control of pumps, fans, motors, chillers, etc., with automatic changeover
- Step switch with linear, binary or flexible functionality
- Autonomous sequence controllers with P, PI or PID mode
Available extension modules:
- 1 universal module RMZ785
- 2 universal modules RMZ787
- 2 universal modules RMZ788
Total maximal 4 extension modules per RMS705B can be connected.
Suitable types of operator units:
- Plug-in operator unit type RMZ790
- Detached operator unit type RMZ791
- Bus operating unit type RMZ792
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