Installation Manual Part 2

Installation manual Reader 41
Modications, misprints and errors excepted
English
6. Operating the reader
6.1. Communication
6.1.1. COM header
Figure: Tab for the Communication by Ethernet I/O card
The communication tab groups together all the functions for establishing connections and conguring the
interface cards. The various communication connections are grouped under 3 headers, COM for serial
connections via the COM port (RS232/485/422), USB for connections up to version USB 2.0 and Ethernet for
connections via TCP/IP.
When the connection is established, the program interrogates the information about the installed I/O cards. The
information can be viewed and changed via the I/O card conguration.
The serial interface is used for communication with the reader via RS232, RS485 and RS422.
The RS485/RS422 interface card supports the standard data rates of the serial interface on a PC. A level converter is
also required for communication to convert the RS232-compliant signal from the PC into a differential RS485/RS422
signal.
A serial COM port on the PC can be opened in this group box. For this purpose the correct serial interface must
be selected in the Port drop-down list box. Only the ports available on the PC are displayed in this list box.
It is not checked whether this port is already in use by other applications.
In the menu below the desired Baud rate must still be set, and if used, the ow control setting. The COM port is
opened by clicking on the Connect button, which blocks it for other applications. If this port is already being
used by another application, a corresponding error message is output. If the port is free, the reader can be
operated using this port.
Pressing the Disconnect button breaks the connection and releases the interface again.

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