Samson 5476 manual 8.3Temperature monitoring, 8.4Error status register, Operational faults

Operational faults

8.3Temperature monitoring

Should a deviation arise in a control circuit that is greater than 10 °C for longer than 30 min- utes, the bit D12 is automatically set in the error status register.

If this function is not required, configure FB36 = ON, select “steig“ and leave the input BE8 unswitched.

8.4Error status register

The error status register is used to indicate controller or system errors. In modem operation with Dial-up also upon corrected fault function, any change in state of the error status register causes the building control station to be dialed.

BITMAP error status register (FSr)

Number = Bit no. in HR			0 1 2 3 4 5 6	7	8	9	10	11	12	13	14	15
A set bit is indicated by		on the
right of number			20 21 22 23 24 25 26	27	28	29	210	211	212	213	214	215
Sensor breakage			D_0
Default values read			D_1
DHW set point not reached			D_2
Mode switch HK faulty			D_3
Mode switch DHW faulty			D_4
1)	BE1 = active + (FB43 = ON)		D_5
1)	BE2 = active + (FB42 = ON)		D_6
1)	BE3 = active + (FB41 = ON)		D_7
1)	BE4 = active + (FB40 = ON)		D_8
1)	BE5 = active + (FB39 = ON)		D_9
1)	BE6 = active + (FB38 = ON)		D_10
1)	BE7 = active + (FB37 = ON)		D_11
1)	BE8 = active + (FB36 = ON)		D_12
Data error alarm from WMZ			D_13
Meter bus communication error			D_14
Unauthorized access			D_15

1)The binary inputs BE1 to BE8 appear in the error status register whenever the associated function block FB_ = ON

EB 5476 EN 65