The C-IT-0200S module (order number TXN 133 29) is used for connecting two temperature sensors or binary signals directly on the CIB bus. The signals from the module are brought by a strip conductor.
The Pt1000 or Ni1000 resistance sensors can be connected to the measurement inputs to measure temperature. Also the NTC12k sensor with a thermistor can be used, or the KTY81-121, against a common GND wire. The resistance is converted in the unit directly into the numerical value of temperature and transmitted to the central unit over the CIB. Other types of RTDs can use the resistance range from 0 to 160 kΩ, but the conversion to temperature and the linearization must be done on the programme level
Fig. 1.The signal layout of the C-IT-0200S module, the wire colour coding and the basic connection
(the old version before November 2012)
Fig. 2. The signal layout of the C-IT-020S module, the wire colour coding and the basic connection
(the new version after November 2012)
Notes:
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The module outputs are insulated wires with a 0.14 mm2 cross section, the length approx. 10cm, terminated with a pressed-on sleeve H0,25/10.
The input parameters DI/AI1, DI/AI2
The input type (connected sensor) |
The range of measured values |
PT1000 |
-90 °C ÷ +320 °C |
Ni1000 |
-60 °C ÷ +200 °C |
NTC 12k |
-40 °C ÷ +125 °C |
KTY81-121 |
-55 °C ÷ +125 °C |
Maximum resistance 160 kΩ |
0 ÷ 160kΩ |
Binary input |
Log. 0 >1.5 kΩ / log 1 <0.5 kΩ |
The loop resistance 2x 1k1 |
Fig. 3. Internal wiring of the C-IT-0200S module