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16 ECL-PTU-207 Preloaded Applications

Network Variables Input

nviSpaceTemp

This variable is used to receive the Space Temperature from an external node on the network.

This variable has priority over the local space temperature inputs. If this variable is received, the con-

troller will use this value to control and will output the value in nvoSpaceTemp.

The only variable that can override nviSpaceTemp is nviSpaceTempAvg. For more details, refer to

nviSpaceTempAvg(nviFP15).

ID Units Valid Range Default Value

nviSpaceTemp SNVT_Temp_p (°C) -10 to 50°C 327,67°C

nviSetpoint (nviFP01)

This input network variable is used to allow the temperature setpoints for the occupied and standby

modes to be changed via the network.

If a valid value is not present, either a locally wired setpoint knob or the appropriate setpoint as config-

ured in nciSetpoints will be used.

Note: The unoccupied setpoints are not changed.

The effective heat/cool setpoints for the occupied and standby modes are derived from nciSetpoints

plus the absolute setpoint offset, calculated as the difference between nviSetpoint and the mean of the

occupied_heat and occupied_cool setpoints defined in nciSetpoints:

£ abs_setpoint_offset = nviSetpoint - (occupied_cool + occupied_heat)/2

£ effective_occupied_cool = occupied_cool + abs_setpoint_offset

£ effective_occupied_heat = occupied_heat + abs_setpoint_offset

£ effective_standby_cool = standby_cool + abs_setpoint_offset

£ effective_standby_heat = standby_heat + abs_setpoint_offset

If nviSetpoint and nviSetptOffset are used together, the result on the effective setpoints is cumulative.

ID Units Valid Range Default Value

nviFP01 SNVT_Temp_p (°C) 10 to 35°C 327,67°C

nviSpOffset (nviFP02)

This input network variable is used to shift the effective occupied and standby temperature setpoints

by adding nviSetptOffset to the current setpoints.

It is typically bound to a supervisory node or to an external wall module having a relative setpoint

knob.

All occupied and standby setpoints will be shifted upward (+) or downward (-) by the value of nviSpOff-

set.

Note: The unoccupied setpoints are not changed.

If nviSetpoint and nviSetptOffset are used together, the result on the effective setpoints is cumulative.

ID Units Valid Range Default Value

nviFP02 SNVT_Temp_p (°C) -10 to 10°C 327,67°C

Variables

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