Assortment / System Description

49
Switching and monitoring device RMS705B
The RMS705B switching and monitoring device (see Data Sheet N3124) is for use
in HVAC and chilled water plants. The functions provided by the RMS705B are
very universal.
• Choice of switching and monitoring functions combined with mathematical and
physical operations (calculations based on self-generated formulas, minimum,
maximum, average and enthalpy calculations, signal doubler/inverter)
• Lead-lag control of pumps, fans, refrigeration machines, motors, etc., with
automatic changeover
• P-, PI or PID universal controller with limitation function and Economy setpoint
• Data acquisition: Pulse count (for display purposes), operating hours count,
trend display of data and event logging (e.g. for the "Legionella" function)
• Freely configurable (device supplied with empty application of basic type S)
• Simulation of input terminals for engineering and commissioning phases
• Connection of RMZ785, RMZ787 and RMZ788 extension modules, thus
providing additional inputs for display and monitoring/alarming
• Up to 32 universal transmit and reception zones per line for data exchange via
KNX in LTE and S-mode
• KNX bus communication for operation and process information
• Menu-driven commissioning, operation and monitoring (cleartext display)
• No commissioning tool required for basic plants (easy configuration)
• Commissioning of complex plants with the OCI700.1 service tool
Functions and characteristics
Relay outputs with…
Product
no.
Universal
inputs
Analog outputs
DC 0...10 V
Ch’over contact
NO contact
RMS705B 8 = N.X1…N.X8 4 = N.Y1…N.Y4 2 = N.Q1, N.Q4 4 = N.Q2, Q3, Q6, Q7
The universal inputs N.X_ can be configured for use with passive sensors, active
signal sources, and status and pulse signals (see page 28).
The analog outputs N.Y_ and relay outputs N.Q_ are ready configured.
Relay outputs with… Number of
modules
Extension module type
Universal
inputs
Analog
outputs
Ch’over contact NO contact
2 Universal module RMZ785 8 -- -- --
2 Universal module RMZ787 4 -- 1 3
2 Universal module RMZ788 4 2 1 1
Maximum number of modules: 4 per RMS705B (for extension modules, see page 57)
The RMS705B switching and monitoring device is for use in heating, ventilation
and refrigeration plants. It allows the free configuration of control and monitoring
loops with different types of function blocks.
The device comes without any programmed applications. Like with all Synco 700
controls, once an application is created, it can be archived and reused for further
identical or modified applications.
Brief description
Inputs and outputs
Inputs
Outputs
Extension modules
Applications on
plant side