REMEHA GTW-08 Modbus Konfigurationsanleitung Seite 26

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5 Configuration
Tab.52 Number of boards present in the appliance
Object instance Data Type
128 UINT8
Tab.53 Specific error code per board
Board 1 2 3
129 135 141
532 534 536
533 535 537
5.12 Fallback scenario
Tab.54 Fallback scenario Modbus registers
Modbus register
21020
21021
21022
21023
26
Description
Devices connected
You can use the next table to find the object instance for the error code of
the specific device.
4 5 6
147 153 159
538 540 542
539 541 543
Set a fallback scenario if there is no communication between the gateway
and the BMS. You can keep, adjust, or cancel the heat demand with the
scenarios in the following table.
Data Type Description
ENUM8 The BMS fallback heat de­
mand mode
ENUM8 BMS fallback heat de­
mand configuration
UINT8 BMS fallback heat de­
mand period
UINT8 The power setpoint
Resolution / Format Min - Max
1 Units
7 8 Description
165 171 Type of device
544 546 Error code
545 547 Error custom code
matrix
If the device type shows code 0x0008, it means it is a CU-GH08.
Resolution / Format
0: BMS fallback HD mode
1: Use Fallback HD
0: Cancel directly
1: Never cancel
2: Maintain fallback HD
1, minute
%
Access
0 - 16 R
Resolution /
Format
[0xZZYY]
ZZ = Device
category
YY = number
in the catego­
ry
00: CU-GH
01: CU-OH
02: EHC
14: MKI
19: SCB
1B: EEC
1E: Gateway
0xFFFF: No
error
0xFFFE: De­
vice not avail­
able
Other: Specif­
ic error
0: Locking
3: Blocking
6: Warning
Min - Max
0 – 1
0 – 2
0 - ....
0 – 100
7854678 - v.01 - 15092023
Min- Ac­
Max cess
R
R
R
Access
R/W
R/W
R/W
R/W