Akytec SMI2 Manuel de l'utilisateur - Page 5

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Carefully position the supplied gasket on the display rear surface. Insert the cylindrical part

of the device into the borehole and tighten the nut from the rear side of the switch panel.

Connect the device to the auxiliary voltage and signal cables in accordance with Appendix B.

The factory settings can be changed before assembly if necessary (see Appendix D.3). For

this purpose the device must be connected to the RS485 interface of the programming

device (PC) and to the auxiliary power supply. For further details see 5.3.

5.2

Programming

The display may only be programmed in the RS485 network with the communications

protocol Modbus RTU/ASCII or akYtec in the slave mode. The protocol type is specified in

the parameter Protocol type (t.Pro) (see Table D3).

The configuration software „Konfigurator SMI2" allows to configure the device via the akYtec

protocol. The CD with the configuration software is supplied with the device. Further steps

are given in 5.3.

The parameters are divided into two main groups: the configuration parameters and

transmitted data.

The configuration parameters are device information, network parameters and operating

parameters. The latter determine how the device processes the received information.

The configuration parameters are constants and are saved in the permanent memory (Table

D3).

The transmitted data are variable data exchanged between the master and slave. These are

not saved (Table D4).

Each parameter has a name consisting of Latin letters (up to four), which can be separated

by points.

5.3

Configuration

Required steps for configuration:

–

Connect a USB/RS485 or RS232/RS485 converter (not supplied) to the PC

–

Connect the display to the 24 V DC power supply and to the RS485 terminals of the

converter according to Fig. B1

–

Switch on auxiliary voltage

–

Install and start SMI2 configuration software

–

In the menu select "Device -> Port configuration..." and set the parameters to the device

factory settings (see 5.5)

–

Check connection with the device (menu "Device -> Check connection")

–

A new device can be configured immediately.

As soon as the parameter Protocol type (t.Pro) is changed and saved, the communication

with the device is interrupted. To enable the SMI2 configuration software to communicate

with the device again, the "Factory settings" mode must be temporarily activated.

5.4

Configuration check

After the RESET button is pressed for a short time, the display extinguishes for 3 seconds,

and all current parameters of the device are then displayed.

The parameters are presented in the following way:

–

Parameter name (2 seconds),

–

Parameter value (2 seconds),

–

Pause (1 second),

–

Next parameter.

The display order corresponds to the register number from the Table D3, column 2.

The RESET button must be pressed for a short time again to terminate the display of

parameters.

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