EC POWER XRGI 20G-TO, Manual

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Version 1.0 - 2012 Manual XrGi 20G-To
2.2.1. Q-network
2.2. XrGi SyStem acceSSorieS
The XRGI control system is based on two logical networks:
1. Control network
2. Q-Network
Both systems use the conventional hierarchical master/slave strategy, with the master controller alone being able to access
the common resource of its own accord. The slave controller cannot access the common resource of its own accord; it must
wait until it is asked by the master controller.
All network units have two RJ45 ports per board. The IQ-Control Panel is master for the control network and hence for the Po-
wer Unit and the Q60-Heat Distributor. The Q60-Heat Distributor is master for the Q-Network and hence the interface between
the two logical networks, so it has two boards and four ports.
Each RJ45 port has two LEDs (e.g. the Storage Control in Fig. 2.17):
The LED on the left (orange) shows the link status:
Display off = System off
Continuously on = Connected
Flashing = Communicating
The LED on the right indicates the operating status:
Display green = Everything OK
Continuous red = Unit is connected to wrong network, or there is no space for more Power Units
Flashing red = Error (see relevant product specifications)
The control network consists of the IQ-Control Panel (master), the Q60-Heat Distributor and the gas safety circuit (both sla-
ves). In the Q60-Heat Distributor, the control network is arranged on the left-hand side (both sockets by the wall).
The Q-Network consists of the Q60-Heat Distributor (master) and the three downstream Q-Network members Storage Con-
trol, Flow Control and Boiler Control (all slaves). The network members that belong together are looped via the network cable
(not star cabled).
Each Q60-Heat Distributor can control up to 20 slaves. There may only be one Flow Control in the network, but multiple
Storage Controls.
Installations with multiple Power Units have their Q-Networks linked via a Q-Network Cable.
The control system and Q60-Heat Distributor(s) poll network members continuously every few seconds and update their
functionality. This means that a Storage Control can be added to the network during operation, for example.
Available Q-Network Modules:
Q-Network Storage Control
Q-Network Flow Control
Q-Network Boiler Control
Q-Network Storage Tank
Fig. 2.18.