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Example of a transfer to the control system:
The error status register is transferred as a word <w> in a holding register (HR) whose value is
calculated as follows:
<w> = ([D0] x <1> + [D1] x <2> ) +...+ ([D11] x <2048>)
Holding register 61 (A set bit is indicated by
Number = Bit no. in HR
Bit value
Thermal disinfection
Limit at terminal x active
Limit at terminal y active
VFmax at DHW exchanger
Temperature monitoring
–
–
–
Extended
limit monitoring
(D8 to D15)
8.6 Error alarms
Error alarms can be sent over a modem either directly to the control station or over the SMS text
message function to a mobile phone or to a fax. Just one function (Modbus, SMS function or fax
function) can be selected at one time since the functions use the same interface. The error alarms
to a mobile phone and to a fax contain the number of the affected error status register (FSR1),
the fault as per error status register (BitNo), the controller ID and the bit number (Bit xx).
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0
1
2
3
2
2
2
2
2
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
on the right of number):
4
5
6
7
8
9
2
2
2
2
2
Operational faults
10
11
12
13
2
2
2
2
2
EB 5179 EN
14
15
2
73
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