Danfoss EKE 1A User Manual page 18

Superheat controller, Type EKE 1A, 1B, 1C, 1D
Figure 16: Signal sharing between EKE 1A, 1B, 1C, 1D
EKE 1B
AKS
32R
(GND, 5V and transmitter signal, output) must be routed to every unit
 NOTE:
For a correct acquisition on all the units all the three wires (GND, 5V and transmitter signal, output) must be routed
to every unit
In EKE 1C, a physical pressure transmitter can only be shared via wired CANBus or Modbus
Sensor Signal sharing via CANBus in EKE 1C, 1D in EKE 1C, 1DSignal can be broadcasted once per second to all
the following parameters enable/disable broadcasting of local signals (refer to the configuration parameter section):
[G012 - Signal sharing Pe]
[G013 - Signal sharing Pc]
[G014 - Signal sharing S3]
• If two or more sensors are connected to same sharing group, the controller which start up as the first one will
broadcast the signal.
• If the receiving controllers has not received a shared signal from another controller for 3 seconds (parameter G003
CAN bus min update interval) it will start broadcast the local sensor.
• When more controllers are connected via CANBus each end of the bus must be terminated with a jumper between
CANH and R120
 NOTE:
Broadcasting is not possible via Modbus. In case of Sensor error, broadcast will stop.
Only EKEs from the same group address can share signals
• Group 1 address 1 to 31
• Group 2 address 32 to 63
• Group 3 address 64 to 95
• Group 4 address 96 to 125
A controller knows its own address and knows from which address the broadcast is coming, this information is used
to discard broadcast signals for controllers outside own group.
Address 0 is invalid, Address 126 and 127 are reserved for remote displays.
© Danfoss | Climate Solutions | 2022.06
EKE 1B
Signal
GND
Supply
EKE 1B
BC398828796060en-000101 | 18