Samson TROVIS 5474, Mounting And Operating Instructions

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Holding register 60 (HR60)
Number = Bit no. in HR 0 1 2 3 4 5 6 7 8 9 10 11
A set bit is indicated by on the right of
number
Bit value 2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
2
10
2
11
Sensor breakage D0
Default values read D1
– D2
Mode switch faulty D3
Boiler switch faulty D4
Correction switch for flow temp. faulty D5
Unauthorized access D6
Error alarm of a binary input
D7
Error alarm WMZ M-Bus D8
Data error alarm from WMZ D9
– D10
Fault alarm binary input changed D11
Holding register 61 (HR61)
Number = Bit no. in HR 0 1 2 3
A set bit is indicated by on the right of number
Bit value 2
0
2
1
2
2
2
3
Error thermal disinfection D0
– D1
– D2
Error Boiler 1, 2 or Pump Pu1,2, or
Temperature exceeded limit D3
Example of a transfer to the control system:
The error status register is transferred as a word <w> in a holding register (HR) whose content is
represented by the total of the value <z> of the active data bit:
<w> = ([D0] x <1> + [D1] x <2>) + … + ([D11] x <2048>)
EB 5474 EN
63
Operational faults