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15
RIS PE 3.0 v2020.1
7.2. USING THE UNIT IN BMS NETWORK
The recuperator can be connected to the BMS network by using the ModBus protocol.
The device can be controlled using FLEX panel and BMS network simultaneously: the device will work based on the latest changes of settings.
As set in the factory, the device will operate (if no faults are present) based on the latest panel settings in case the panel or BMS network (or even
both) is disconnected. This setting can be changed, please see Flex_meniu_montuotojas section 14 “Misc” for details.
ModBus type: RTU
RS485_2 port is used for connecting the ModBus (Fig. 3);
Settings (see section II.6.2. of the FLEX installer description):
Fig. 3.
RS485_1 and RS485_2. RS485_1
: remote control panel socked; RS485_2: ModBus port.
S-touch control panel must be connected to RS485_2 (ModBus) connection
RJ11 socket contacts reference:
1 – COM
2 – A
3 – B
4 - +24V
Microswitches 1 and 2 (Fig. 4) are mounted in the control board for selecting of resistances during network adjustment. Adjustment depends on
the connection method. If the ring type connection is used, up to 30 units could be connected. If other method is used, approximately 7 units could
be connected. The resistance between the first and the last unit should be 120...150 Ω.
RESISTANCE Ω
SWITCH 1
SWITCH 2
180
ON
ON
470
ON
OFF
330
OFF
ON
Fig. 4 Microswitches 1 and 2
7.3. MODBUS ADRESSES
NR.
NAME
MODBUS FUNC.
DATA
AD-
DRESS
QUANTITY
OF DATA
DESCRIPTION
VALUES
1
Antifrost
01h_Read_Coils
0
1
Plate heat exchanger frost protection function
1-active, o-passive
2
Fire
01h_Read_Coils
1
1
Fire alarm
1-active, o-passive
Summary of Contents for RIS 400 PE 0
Page 1: ...RIS PE 3 0 EN MOUNTING AND INSTALLATION INSTRUCTION...
Page 30: ...30 RIS PE 3 0 v2020 1...
Page 31: ...31 RIS PE 3 0 v2020 1...
