Balluff BAE SC-TL-F03, User Manual

Page: 98 / 118

www.balluff.com
38
Modbus RTU Interface
The Modbus interface of the touchMatrix series is a standard Modbus RTU Slave and
provides the following Modbus functions:
•
Read Coils
•
Write Single Coil
•
Read Holding Registers
•
Write Multiple Registers
•
Diagnosis
For the operation of the interface module and the understanding of this manual basic
knowledge in Modbus RTU communication is presupposed.
Parameter setting
Required parameter settings in “Serial menu”:
UNIT NUMMER
Not valid for Modbus communication
(For setting of Modbus address see parameter “MODBUS”)
SERIAL BAUD RATE
This parameter defines the serial baud rate
0
9600 9600 baud
1 19200 19200 baud
2 38400 38400 baud
SERIAL FORMAT
This parameter defines the bit data format.
0 7-EVEN-1
Do not use with Modbus protocol
1 7-EVEN-2
2 7-ODD-1
3 7-ODD-2
4 7-NONE-1
5 7-NONE-2
6 8-EVEN-1 8 data bits Parity even 1 stop bit
7 8-ODD-1 8 data bits Parity odd 1 stop bit
8 8-NONE-1 Do not use with Modbus protocol
9 8-NONE-2 8 data bits no Parity 2 stop bits