Basic Documentation

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Siemens Modular Heating Controller RMH760B CE1P3133en
Building Technologies 3 Commissioning 2017-09-29
Type of
module
Output variable Terminal Designation in diagram
RMZ782B(1)
3-position mixing valve
Q1 and Q2
A2.Q1/Q2
Heating circuit pump
Q3
A2.Q3
RMZ782B(2)
3-position mixing valve
Q1 and Q2
A2.Q1/Q2
Heating circuit pump
Q3
A2.Q3
• "A2." in the table denotes extension module RMZ782B, "A3" denotes extension
module RMZ783B.
• If required, additional inputs and outputs can be assigned to the free inputs and
outputs via "Extra configuration"
• The inputs and outputs can be checked with the help of menu Extra configuration > … >
Inputs (or Outputs)
• Additional function blocks can be activated via "Extra configuration"
3.2.5 Extension modules
RMH760B
RMZ78… RMZ78…
3133Z03
RMZ78…
RMZ78…
A maximum of 4 extension modules can be connected to the RMH760B.
Prior to attaching an extension module, the plant must be disconnected from power.
The order in which the extension modules are fitted is not mandatory but must
correspond to the setting made on the controller.
When selecting the plant type, an extension module will automatically be preconfigured,
if required. This can be changed in the basic configuration.
The assignment of functions to the basic module and the extension modules is not
prescribed. Relay outputs for 3-position applications are preconfigured to the controller
or the extension module type RMZ782B or RMZ783B.
The following types of extension modules can be connected to each RMH760B:
• Heating circuit module RMZ782B with 3 inputs and one modulating output plus 3
relay outputs (one relay with changeover contact). It is also possible to activate 2
relay outputs for the control of 3-position actuators with an RC unit
• DHW module RMZ783B with 4 inputs, one modulating output and 5 relay outputs (2
relays with changeover contact). It is also possible to activate 2 relay outputs for the
control of 3-position actuators with an RC unit
• Universal module RMZ787 with 4 inputs and 4 relay outputs (one relay with
changeover contact)
• Universal module RMZ789 with 6 inputs, 2 modulating outputs and 4 relay outputs (2
relays each for the control of 3-position actuators with RC units can be activated)
The extensions can be activated by configuring them at a free position of the controller.
The controller can accept a maximum of 4 extension modules. Of module types
RMZ783B (DHW) and RMZ787 (universal), a maximum of one module can be used, of
heating circuit module type RMZ782B and universal module type RMZ789, a maximum
of 2 of each.
Notes
Note
Order
Assignment
of
functions
Number of extension
modules per type