version 4.7.2 ā July 10th, 2022 Firmware version V2.1.7 and higher
EXXFIRE Installation and Service Manual 77
Connected systems in a Master-Slave configuration
The system can be used as a standalone system or can be connected to a number of other ExxFire
CNF systems. In case of connected systems, the systems will behave as one system, whereby each
system will perform its smoke detection function and in case one of the systems generates an Alarm
all systems will fire their gas generators simultaneously. Also, activation by a Manual Activation
Button at one of the connected systems will cause all systems to fire.
In case of connected systems one system must be configured as the Master system and the other
systems must be configured as Slave systems, using DIP switch M and rotary switch S. DIP switch T
is used to configure terminating resistors on the cable(s) to connect the systems.
In case of a standalone system the following switch settings need to be set: M=1, T=0 and S=0.
(A standalone system is configured as a Master system with no Slave systems. No terminating
resistor is connected to the communication bus.)
In case of a configuration where multiple systems are connected the switch settings are explained
below.
DIP switch M is used to configure a system as Master system (M=1), or Slave system (M=0). Only
one of the connected systems should be configured as Master system and all the others as Slave
systems.
Table 15 Switch M to select Master or Slave system
The meaning of the Rotary switch setting depends on the setting of DIP switch M:
- In case DIP switch M is set to 1, the system is configured as a Master system and the
meaning of the value set by the Rotary switch is the amount of Slave systems connected to
the Master system. Up to 7 slave systems can be connected to a Master. Example: if the
Rotary switch is set to 3, the total system configuration consists of 4 systems: 1 Master
system and 3 Slave systems.
- In case DIP switch M is set to 0, the system is configured as a Slave system and the
meaning of the value set by the Rotary switch is the address of the Slave system. Each
Slave system must have a unique slave address. Example: if the Master system is
configured to have 3 slave systems, three slave systems must be connected to the Master
system (in a daisy chain configuration), whereby the three slave systems must be
configured to have three different slave addresses, i.e. 1, 2 and 3.
To Next Page
Loading...