7.2 Analog inputs X1…X5
7.2.1 Activation and type
To activate the analog inputs X1…X5, follow the procedure described above under
"Activating the function".
Activation
If the unit is °C / °F, the type is selectable. The following types are available:
Type (TYPE)
• NI (LG-Ni1000)
• 2XNI (2 x LG-Ni1000)
• T1 (T1)
• PT (Pt1000)
• 0-10 (DC 0…10 V)
If the unit is not °C / °F, the type is always DC 0…10 V.
7.2.2 Measuring range (MIN VAL, MAX VAL)
The following measuring ranges are defined for passive temperature signals:
Passive temperature
signals
Temperature signal Measuring range
LG-Ni1000 –50…+250 °C
(fixed)
2 x LG-Ni1000 or T1 –50…+150 °C
(fixed)
Pt1000 –50…+400 °C
(fixed)
In the case of active signals, the measuring range can be entered. Both an upper
and a lower measured value is required.
Active signals
Active DC 0…10 V temperature signals have a default measuring range of
0…200 °C, but they are adjustable within the overall range of –50…+500 °C.
Example Room temperature with an active DC 0…10 V signal = 0…50 °C:
– Lower measured value (MIN VAL): 0 °C
– Upper measured value (MAX VAL): 50 °C
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Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Inputs 29.08.2008
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