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7.22
Serial interface
The device is equipped with a serial interface which is configurable as an RS232 or RS485 interface.
The interface supports the Modbus protocol (Modbus RTU) as a master or slave. Alternatively, a barcode
scanner may be connected.
For more information on using the serial interface with the Modbus protocol, see:
chapter 9.7 "Modbus frames for reading", Page 220
chapter 9.8 "Modbus frames for writing", Page 221
If you use the serial interface with a barcode scanner, please refer to the technical documentation for the
barcode scanner for the required settings.
Communication via Modbus is described in detail in the separate interface description.
Device dialog box
Parameter
Parameter
Type
Protocol
Baud rate
Selection/settings
RS232
RS485
Modbus slave
Modbus master
Barcode
Baud rate with which the interface is operated.
9600
19200
38400
115200
7 Configuration
Description
RS232 interface
RS485 interface
The device acts as a Modbus slave
(Modbus-RTU)
The device acts as a Modbus master
(Modbus-RTU)
A barcode scanner should be operated
on the interface.
9600 baud
19200 baud
38400 baud
115200 baud
181
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