C-IT-0908S

The C-IT-0908S module (order. no.: The TXN 133 52) and its variant with a reversed outputs polarity, the C-IT-0908S-NPN (TXN 133 52.01), are designed to connect analogue or digital input signals and to control output binary signals for energizing LEDs. The module inputs, outputs and buses are terminated on free insulated wires.

The DI1 to DI6 inputs are only binary,

the DI7/AI7 and DI8/AI8 inputs can be set up as binary or analogue.

The AI9 input can only be set up as analogue.

For example: one temperature sensor (AI) and eight inputs potential free contact (DI) or six inputs the contact type (DI) and three temperature sensors (AI).

The temperature sensors PT1000, Ni1000, NTC12k and KTY81-121 can be connected to the analogue inputs, or a general resistance 0 to 160 kΩ against the common GND wire.

The binary signals can be connected to the inputs only as a free (dry) contact, against a common GND wire; the binary input can also operate in mode of balanced inputs.

Eight digital outputs are designed to excite the LEDs connected in a group with common cathodes (C-IT-0908S-PNP or C-IT-0908S, order number TXN 133 52) or common anodes (C-IT-0908S-NPN , order number 133 TXN 52.01), see the example in Fig. .2.

Fig. 1. The signal layout of the C-IT-0908S module, the wire colour coding and the basic connection
(the old version before November 2012)

Fig. 2. The signal layout of the C-IT-0908S module, the wire colour coding and the basic connection
(the new version after November 2012)

Notes:

1. The module is terminated with two connectors with moulded separate coloured wires with the length of approx. 100mm (inputs and outputs), the wire tips are not terminated.

2. The CIB bus is terminated separately on two wires.

3. The inputs are against the common GND terminal.

4. The DO1 to DO8 outputs generate positive (the PNP design) or negative (the NPN design) voltage against the GND terminal for exciting the LEDs.

Basic parameters of the input and outputs of the C-IT-0908S module:

Fig. 3. The Internal wiring of the C-IT-0908S-PNP and C-IT-0908S-NPN modules.