User Manual

21
Smart Infrastructure
CE2N5324en
2019-06-27
Tariff control via M-bus (tariff T11)
In tariff registers 1, 2 and 3, either energy or volume can be totaled. With the relevant M-bus
command, one of the 3 tariffs can be activated or all tariffs can be deactivated.
Surcharge quantity tariff by means of return temperature (tariff T12)
The energy is totaled based on the temperature cold side in tariff registers 1 or 2.
The totaled energy is calculated from the temperature differential cold side and a defined
return threshold (and not from the temperature differential).
Return threshold exceeded: T1 is totaled.
Return threshold breached: T2 is totaled.
Display of tariff situation on the LCD
The current tariff state is displayed in the user loop together with the energy or the volume.
No tariff state is displayed for tariffs T7 and T8.
For tariffs T2, T3, T4, T5, T6, T10, T11, and T12
No tariff register active
Tariff register 1 active
Tariff register 2 active
Tariff register 3 active
For tariff T9 (cooling energy/heat meter)
No tariff register active
Tariff register 1 active
Tariff register 2 active
The type of tariff and the associated parameters are displayed in service loop 4.
For T2, T3, T4, T5, and T6
At 2-second intervals with threshold value 1/2/3
For T7
For T8
For T9
At 2-second intervals
For T10
Switching times at 2-second intervals
For T11
For T12
The contents of the tariff registers is displayed in the user loop after the energy.