D-EOMHP01501-22_00EN 21/29
13
(Water Reversing Valve To Heat
Delay)
0-120
0-120s
W
1
The path in the Web HMI interface for Water Reversing Valve
settings is “
Main Menu
→
View/Set Unit
→
Water Reversing
Valve
”
3.18. Connectivity Kit & BMS Connection
The UC has two access ports for communications via Modbus RTU / BACnet MSTP or Modbus / BACnet TCP-IP protocol: RS485
port and Ethernet port. While the RS485 port is exclusive, on TCP-IP port it
’s possible to communicate simultaneously in both
Modbus and BACnet.
The Modbus protocol is set as default on the RS485 port while access to all the other functions of BACnet MSTP/TCP-IP and
Modbus TCP-IP are unlocked through
EKRSCBMS
activation.
Please refer to the Databook for protocols incompatibility with other unit functionality.
RS485
TCP-IP
•
Modbus RTU
OR
•
BACnet MSTP
•
Modbus TCP-IP
AND
•
BACnet TCP-IP
You can choose which protocol to use and set the communication parameters for both ports in Page [22].
Page
Parameter
Range
Description
R/W
Psw
19
(Protocol
Communication)
00
(
Mb Address
)
1-255
Defines UC address in Modbus network.
W
1
01
(
Mb BAUD
)
0-1000
Defines Modbus communication rate in Bps/100 and
must be identical for all nodes of the bus.
W
1
02
(
Mb Parity
)
0 = Even
1 = Odd
2 = None
Defines the parity used in Modbus communication and
must be identical for all nodes of the bus.
W
1
03
(
Mb 2StopBit
)
Off = 1 Stop-
Bit
On = 2 Stop
Bits
Defines whether 2 stop bits should be used.
W
1
04
(
Mb Timeout
)
0-10
Defines the timeout in second for the response of the
slave before a communication error is reported.
W
1
05
(
BN Address
)
1-255
Defines UC address in BacNET network.
W
1
06
(
BN BAUD
)
0-1000 Bps/100
Defines BacNET communication rate in Bps/100 and
must be identical for all nodes of the bus.
W
1
07 BN
(
Device ID
)
0-4.194.302
0-(X.XXX.---)
Defines the four most significant digits of Device ID,
used in a BACnet network as the unique identifier of a
specific device. The Device ID for each device must be
unique on the entire BACnet network.
W
1
08 BN
(
Device ID
)
0-4.194.302
0-(-.---.XXX)
Defines the three less significant digits of Device ID,
used in a BACnet network as the unique identifier of a
specific device. The Device ID for each device must be
unique on the entire BACnet network.
W
1
09
(
BN Port
)
0-65535
0-(X-.---)
Defines the most significant digit of BacNET UDP Port.
W
1
10
(
BN Port
)
0-65535
0-(-X.XXX)
Defines four less significant digits of BacNET UDP Port.
W
1
11
(
BN Timeout
)
0-10
Defines the timeout in second for the response before a
communication error is reported.
W
1
12
Off = Passive
On = Active
Represent the actual state of
EKRSCBMS.
R
1
