Sauter Italia S.p.A.
RDT921F901
| Hardware manual ver. 1.0 | Code 114RDT921E104SAU
page 26 of 38
Cnt Tx
parameter available in read-only mode
number of packets sent
Cnt Ovf
parameter available in read-only mode
number of overflow packets
Cnt Passive
parameter available in read-only mode
number of passages to the passive state
Cnt Bus Off
parameter available in read-only mode
number of passages to the passive state
6.3.4
Configuration parameters of the "UART1" sub-menu of the "Networks" menu
The following table shows the meaning of the configuration parameters of the "UART1" sub-menu or the "Networks" menu concerning
the RS-485 MODBUS master/slave port.
The parameters are visible if the application software allows the port to be configured to support the MODBUS communication protocol.
PARAM.
MIN.
MAX.
M. U.
DEF.
DESCRIPTION
Address
1
247
- - -
1
MODBUS address of the device (significant only if the
communication protocol is of the MODBUS slave type)
Baudrate
- - -
- - -
- - -
9600
baud rate of the MODBUS-type communication
1200
=
1.200 baud
2400
=
2.400 baud
4800
=
4.800 baud
9600
=
9.600 baud
19200
=
19.200 baud
28800
=
28.800 baud
38400
=
38.400 baud
57600
=
57.600 baud
Parity
- - -
- - -
- - -
EVEN
MODBUS-type communication parity
NONE
=
none
ODD
=
odd
EVEN
=
even
Stop
- - -
- - -
- - -
1 BIT
number of stop bits of the MODBUS-type communication
1 BIT
=
1 bit
2 BIT
=
2 bit
Timeout
2
240
s
10
local MODBUS-type communication timeout, i.e., device timeout
(this parameter sets a delay from the sending of a request after
which, if no answer is received, the request sending is considered
failed and the next request is sent; it is significant only if the
communication protocol is of the MODBUS master type).
Polarization
- - -
- - -
- - -
NO
RS-485 MODBUS slave port polarisation
NO
=
the device does not polarise the RS-485 slave
port
YES
=
the device polarises the RS-485 slave port
