Danfoss ECL Comfort 210 Operating Manual page 170

Operating Guide ECL Comfort 210/296/310, application A275/A375
ECL 485 addr. (master / slave address)
Circuit
This settting is relevant if more controllers are working in the same
ECL Comfort system (connected via the ECL 485 communication
bus) and / or Remote Control Units (ECA 30 / 31) are connected.
0:
The controller works as slave.
The slave receives information about the outdoor
temperature (S1), system time, and signal for DHW
demand in the master.
1 ... 9:
The controller works as slave.
The slave receives information about the outdoor
temperature (S1), system time, and signal for DHW
demand in the master. The slave sends information
about the desired flow temperature to the master.
10 ... 14: Reserved.
15:
The ECL 485 communication bus is active.
The controller is master. The master sends information
about the outdoor temperature (S1) and system time.
Connected Remote Control Units (ECA 30 / 31) are
powered.
The ECL Comfort controllers can be connected via the ECL 485
communication bus to perform a larger system (the ECL 485
communication bus can connect to max. 16 devices).
Each slave must be configured with its own address (1 ... 9).
However, more slaves can have the address 0 if they only have to
receive information about outdoor temperature and system time
(listeners).
Service Pin
Circuit
This setting is only used in connection with set-up of Modbus
communication.
Not applicable for the time being and reserved for future
use!
Ext. reset
Circuit
This setting is only used in connection with set-up of Modbus
communication.
0:
Reset not activated.
1: Reset.
170 | © Danfoss | 2017.09
Factory setting
Setting range
0 ... 15
Setting range Factory setting
0 / 1
2151
Setting range Factory setting
0 / 1
2048
The total cable length of max. 200 m (all devices incl. the internal ECL
15
485 communication bus) should not be exceeded.
Cable lengths of more than 200 m may cause noise sensibility (EMC).
In a system with MASTER / SLAVE controllers, only one MASTER
controller with address 15 is allowed.
If by mistake more MASTER controllers are present in an ECL 485
communication bus system, decide which controller is to be MASTER.
Change the address in the remaining controllers. However, the system
will operate but not be stable with more than one MASTER controller.
In the MASTER controller, the address in 'ECL 485 addr. (master / slave
address)' , ID no. 2048, must always be 15.
2150
0
0
VI.GU.L2.02