Akytec SMI2 Podręcznik użytkownika - Strona 4

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4 Functional description

PS – Power supply

A 4-digit, 7-segment LED display (red) with 14 mm character height displays data received

from the RS485 network, error messages and/or configuration parameters of the device.

The secondary voltage source with galvanic isolation guarantees a stable power supply to

the device and offers protection against polarity reversal.

The RESET button is positioned on the cylindrical surface of the device. The button enables

to retrieve the configuration parameters and to restore factory settings, if necessary.

The device has the following functions:

–

receiving data from a master device in the slave mode

–

querying data from a slave device in the master mode

–

processing received data according to the set parameters

–

displaying transmitted value

–

displaying transmitted value of a type Int or Word with the set number of decimal points

–

optional flashing function

–

displaying errors if the data transfer is faulty or the received value cannot be displayed

(see 6.5)

–

displaying configuration parameters of the device

–

modifying configuration parameters according to data received from the master

5.1

The SMI2 is designed for switch panel mounting in a borehole of Ø22.5 mm (see Appendix A

for dimensions).

akYtec GmbH · Vahrenwalder Str. 269 A · 30179 Hannover · Germany Tel.: +49 (0) 511 16 59 672-0 ·

Fig. 4.1 Block diagram

Fig. 5.1 Mounting