closed binary input can be regarded as the error. “Err 8” alarm is indicated by the controller
if at least one of these configured inputs reports an error.
Note!
If any of the free inputs should issue binary signals directly to the building control station, by-
passing the error status register, activate the function block concerned in the configuration
level C08, but select – – – in the function block parameter.
Error status register:
Bit value
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
Sensor failure
Err 1
Reset to default values
Err 2
Disinfection temperature not reached
Err 3
Max. charging temperature reached
Err 4
Reserved
Err 5
Temperature monitoring alarm
Err 6
Unauthorized access occurred
Err 7
Error message of a binary input
Err 8
Error in meter bus communication
Err 9
Error reported by heat meter
Err 10
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> = Err 1 + Err 2 + … + Err 10 = 2
0
+ 2
1
+ … + 2
9
8.6
Sending text message in case of error
If a dial-up modem is connected to the RS-232 system bus interface, the controller can send
a text message via SMS (Short Message Service) to a mobile phone when an error occurs.
As soon as a fault has been registered in the error status register, the text message indicating
a controller fault is sent. On the mobile phone, the following error message is displayed:
90
EB 5576 EN
Operational faults
